docs: record MITC4 verification gates
This commit is contained in:
KOKO\Mimi
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# Linear Static MITC4 Shell Build/Test Report
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## Metadata
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- feature_id: `linear-static-mitc4-shell`
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- source_commit: `820ba30c717b3d0e113775608e20dfd5fbc05d53`
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- source_implementation_report: `N/A`; Harness completion evidence is recorded in
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`phases/linear-static-mitc4-shell/index.json`
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- source_implementation_plan:
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`docs/implementation-plans/linear-static-mitc4-shell-implementation-plan.md`
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- status: `pass-for-reference-verification`
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- owner_agent: `build-test-executor-agent`
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- date: `2026-08-13`
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## Verdict
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The formal build/test gate passes. A fresh Visual Studio 18 2026/MSVC x64 Debug
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configuration, clean full rebuild, three implementation-plan-focused CTest runs,
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nonzero JSON discovery, full CTest regression, and the required Harness Python
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self-test all completed successfully.
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- clean full rebuild: exit `0`; compiler/linker warning scan `0`; error scan `0`
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- focused kernel/model/assembly/recovery regex: `87/87` passed
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- focused linear-static lifecycle regex: `10/10` passed
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- focused MITC4 reference-test regex: `8/8` passed
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- CTest discovery: `144` tests, including `32` names containing `Mitc4`
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- full CTest after clean rebuild: `144/144` passed
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- Harness Python self-test: `7/7` passed
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- failed tests: `0`
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- required S4 reference hash mismatches or Git changes: `0`
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This verdict authorizes handoff to Reference Verification only. It does not approve
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reference tolerance results, physics sanity, or release readiness.
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## Execution Environment
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- os: `Microsoft Windows 11 Home 10.0.26200 build 26200`
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- branch: `feat-linear-static-mitc4-shell`
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- source_head: `820ba30c717b3d0e113775608e20dfd5fbc05d53`
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- generator: `Visual Studio 18 2026`
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- MSBuild: `18.8.2+ce25c0108`
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- compiler: `MSVC 19.51.36252.0`
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- compiler_architecture: `x64`
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- Windows SDK: `10.0.26100.0`
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- language/config: `C++17 / Debug`
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- CMake: `4.4.0`
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- build_dir: `.harness/build`
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- harness_config: absent
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- project_selection: auto CMake from root `CMakeLists.txt`
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- command_discovery_path: default CMake/MSVC x64 Debug with implementation-plan
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generator and dependency paths
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- resolved dependencies: GoogleTest `C:/git/googletest`; oneMKL `2026.1.0`;
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oneTBB package path `2023.1`; HDF5 package path `2.1.1`
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The generated compiler metadata at
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`.harness/build/CMakeFiles/4.4.0/CMakeCXXCompiler.cmake` independently confirms
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`CMAKE_CXX_COMPILER_ID=MSVC` and version `19.51.36252.0`.
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## Command Log Summary
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All durations below are wall-clock durations measured for the command. The initial
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green chain was retained as corroborating evidence; the later clean-rebuild chain is
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the canonical acceptance evidence.
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| order | command | exit_code | duration | relevant stdout/stderr tail |
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| ---: | --- | ---: | ---: | --- |
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| 1 | `git status --short --branch; git rev-parse HEAD` | 0 | `0.8 s` | Clean `feat-linear-static-mitc4-shell`; HEAD matched `820ba30...`. |
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| 2 | Required dependency `Test-Path` precheck from the implementation plan | 0 | `0.215 s` | All four GoogleTest/MKL/TBB/HDF5 paths returned `True`. |
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| 3 | `cmake --fresh -S . -B .harness/build -G "Visual Studio 18 2026" -A x64 "-DFESA_GTEST_SOURCE_DIR=C:/git/googletest" "-DMKL_DIR=C:/Program Files (x86)/Intel/oneAPI/mkl/2026.1/lib/cmake/mkl" "-DTBB_DIR=C:/Program Files (x86)/Intel/oneAPI/tbb/2023.1/lib/cmake/tbb" "-DHDF5_DIR=C:/Program Files/HDF_Group/HDF5/2.1.1/cmake"` | 0 | `8.684 s` | MSVC `19.51.36252.0`, MKL `2026.1.0`; `Configuring done`, `Generating done`. The failed pthread probes were normal CMake feature probes; `Found Threads: TRUE`. |
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| 4 | `cmake --build .harness/build --config Debug` | 0 | `4.382 s` | Initial incremental build produced `fesa.exe` and all three test executables; warning/error scan `0/0`. |
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| 5 | `ctest --test-dir .harness/build -C Debug -R "DomainModel|InpDomainMapping|Mitc4Geometry|Mitc4Shell|DofManager|EssentialConstraints|SparseAssembly|LoadAssembly|ResultRecovery|Hdf5ResultsWriter" --output-on-failure` | 0 | `5.743 s` | `100% tests passed out of 87`; failed `0`. |
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| 6 | `ctest --test-dir .harness/build -C Debug -R "LinearStaticCli|Mitc4ShellCli" --output-on-failure` | 0 | `1.442 s` | `100% tests passed out of 10`; failed `0`. |
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| 7 | `ctest --test-dir .harness/build -C Debug -R "Mitc4ReferenceComparison|Mitc4S4Reference" --output-on-failure` | 0 | `1.377 s` | `100% tests passed out of 8`; failed `0`. |
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| 8 | `ctest --test-dir .harness/build -C Debug --show-only=json-v1` | 0 | `0.208 s` | Discovered `144` tests; `32` test names contained `Mitc4`. |
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| 9 | `ctest --test-dir .harness/build -C Debug --output-on-failure` | 0 | `9.789 s` | Initial full regression: `144/144` passed; failed `0`. |
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| 10 | First environment/reference audit helper | 1 | `0.9 s` | Non-gating report-generation error: it hardcoded nonexistent CMake internal directory `CMakeFiles/4.3.0`; both S4 hashes had already matched before the helper stopped. No build or test failed. |
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| 11 | Corrected dynamic environment/reference audit helper | 0 | `0.583 s` | Located `CMakeFiles/4.4.0/CMakeCXXCompiler.cmake`; confirmed MSVC/version, both S4 hashes, no S4 diff, and clean worktree. |
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| 12 | `cmake --build .harness/build --config Debug --target clean` | 0 | `1.251 s` | Generated Visual Studio clean target completed. |
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| 13 | `cmake --build .harness/build --config Debug` | 0 | `94.616 s` | Canonical clean rebuild compiled/linked the solver, CLI, and all test executables; `89` output lines, warning scan `0`, error scan `0`. |
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| 14 | `cmake --build .harness/build --config Debug --target fesa_unit_tests` | 0 | `1.943 s` | `fesa_solver`, GoogleTest, and `fesa_unit_tests.exe` confirmed. |
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| 15 | Focused kernel/model/assembly/recovery regex from order 5 | 0 | `4.863 s` | Canonical focused run: `87/87` passed; failed `0`. |
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| 16 | `cmake --build .harness/build --config Debug --target fesa_integration_tests` | 0 | `1.712 s` | `fesa_solver`, GoogleTest, and `fesa_integration_tests.exe` confirmed. |
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| 17 | Focused lifecycle regex from order 6 | 0 | `1.531 s` | Canonical focused run: `10/10` passed; failed `0`. |
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| 18 | `cmake --build .harness/build --config Debug --target fesa_reference_tests` | 0 | `1.769 s` | `fesa_solver`, GoogleTest, and `fesa_reference_tests.exe` confirmed. |
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| 19 | Focused reference regex from order 7 | 0 | `1.511 s` | Canonical focused run: `8/8` passed; failed `0`; S4 end-to-end tests were included. |
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| 20 | `ctest --test-dir .harness/build -C Debug --show-only=json-v1` | 0 | `0.080 s` | Canonical discovery: `144` total, `32` MITC4-named; unit/integration/reference labels `121/10/13`. |
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| 21 | `ctest --test-dir .harness/build -C Debug --output-on-failure` | 0 | `9.669 s` | Canonical full regression: `100% tests passed out of 144`; failed `0`; CTest real time `9.62 s`. |
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| 22 | Full `reference/` Git scope and worktree audit | 0 | `0.362 s` | `reference_diff_count=0`, `reference_status_count=0`; branch and HEAD unchanged. |
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| 23 | `git merge-base dev HEAD` plus changed-file scope audit | 0 | `0.321 s` | Merge base `a058ef7...`; detected `scripts/execute.py`, so Harness Python self-test was required. |
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| 24 | `uv run --with pytest python -m pytest -v -rs` | 0 | `4.651 s` | Python `3.11.15`, pytest `9.1.1`; `7 passed in 0.11s`; failed `0`. |
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## Validation Results
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| validation_stage | result | evidence |
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| --- | --- | --- |
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| clean baseline | pass | Branch and HEAD matched the requested baseline; worktree was clean before report creation. |
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| dependency precheck | pass | All four implementation-plan dependency paths existed. |
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| fresh configure | pass | VS18/x64 configure exit `0`; compiler metadata is MSVC x64. |
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| clean full build | pass | Exit `0`; solver, CLI, unit, integration, and reference targets compiled/linked. |
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| compiler warning policy | pass | Clean rebuild emitted zero warning lines and zero compiler/linker error lines; product CMake uses warnings-as-errors. |
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| feature-specific tests | pass | Approved focused regexes passed `87/87`, `10/10`, and `8/8`. |
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| CTest discovery | pass | Nonzero inventory: `144` tests, including `32` MITC4-named tests. |
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| full CTest | pass | `144/144` passed after the clean rebuild. |
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| Harness self-test | pass | Required because `scripts/execute.py` differs from the `dev` merge base; `7/7` passed. |
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| reference immutability | pass | Required S4 SHA-256 values match; entire `reference/` tree has no Git diff or status entry. |
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## CTest Inventory
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| inventory | count |
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| --- | ---: |
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| all discovered tests | 144 |
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| unit label | 121 |
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| integration label | 10 |
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| reference label | 13 |
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| test names containing `Mitc4` | 32 |
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| failed tests | 0 |
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The `32` MITC4-named tests comprise `30` tests in `Mitc4*` suites plus
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`DomainModel.Mitc4ShellRecordsPreserveSourceAndInternalIdentity` and
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`InpDomainMapping.MapsS4AndS4rThroughOneMitc4Identity`. The broader focused regex
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also exercises shared Domain, DOF, constraints, assembly, recovery, and HDF5 seams.
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CTest currently applies the target-wide legacy label
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`linear-static-3d-euler-beam` to all `144` tests and has no separate MITC4 label.
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The approved implementation plan explicitly permits exact suite regex filtering,
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which was used here, so this labeling limitation is nonblocking.
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## Warning and Failure Audit
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- Clean rebuild warning lines: `0`.
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- Clean rebuild compiler/linker error lines: `0`.
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- Focused CTest failures: `0`.
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- Full CTest failures: `0`.
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- Harness Python failures: `0`.
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- Configure probes for POSIX pthread symbols reported expected negative probe
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results on MSVC before CMake resolved `Threads: TRUE`; this is not a configure
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warning or failure.
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- One report-generation helper failed because it assumed a CMake internal versioned
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directory. The corrected dynamic lookup passed. This incident did not affect
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configure, compile, link, test, reference artifacts, or the gate verdict.
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## Reference Read-Only Audit
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| exact approved path | observed SHA-256 | expected match |
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| --- | --- | --- |
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| `reference/shell/shell.inp` | `4005851E1AB22FD3A16AC17A8D5DA3E051233F69F37419079F3553AD134ECFCF` | yes |
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| `reference/shell/shell displacements.csv` | `C81D94E0B4A849F87AA0F79C83A79B94D5661AC79E44ED826919AB432C87746B` | yes |
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The post-test audit found zero changed paths anywhere under `reference/`. No Abaqus
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or other reference solver was run.
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## Failure Classification
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- classification: `N/A`
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- primary_failure: `N/A`
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- first_failed_build_or_test_command: `N/A`
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- failed_target_or_test: `N/A`
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- correction_handoff: `N/A`
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- non_gating_incident: report-only environment metadata lookup used the wrong CMake
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internal directory and was rerun successfully; no product correction is required
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## Failed Test Inventory
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None. All focused, full CTest, and Harness Python tests passed.
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## Handoff Recommendation
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| target_agent | reason | required_input |
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| --- | --- | --- |
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| Reference Verification Agent | Build/test status is `pass-for-reference-verification`. | This report, source HEAD `820ba30...`, `.harness/build/tests/Debug/fesa_reference_tests.exe`, and the unchanged declared S4 input/CSV pair. |
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The focused reference CTest generated/used build-local comparison evidence, but the
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Build/Test Executor does not interpret that evidence as the formal reference
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tolerance verdict. Reference Verification must independently inspect and report it.
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## No-Change Assertion
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- source_files_modified: `false`
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- test_files_modified: `false`
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- cmake_files_modified: `false`
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- requirements_formulation_io_numerical_reference_documents_modified: `false`
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- phase_files_modified: `false`
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- tolerance_policies_modified: `false`
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- reference_artifacts_modified: `false`
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- owned_report_modified: `true`
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- notes: The worktree was clean at the requested source HEAD before this report was
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created. Build products remained under the ignored `.harness/build/` directory.
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## Open Issues
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- None blocking Reference Verification.
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- The target-wide legacy CTest label prevents a precise MITC4 label count; exact
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implementation-plan suite regexes provide the approved focused test entry point.
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# Linear Static MITC4 Shell Physics Evaluation Report
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## Metadata
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- feature_id: `linear-static-mitc4-shell`
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- model_id: `shell-s4`
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- evaluated_head: `820ba30c717b3d0e113775608e20dfd5fbc05d53`
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- source_build_test_report:
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`docs/build-test-reports/linear-static-mitc4-shell-build-test.md`
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- source_reference_verification_report:
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`docs/reference-verifications/linear-static-mitc4-shell-reference-verification.md`
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- source_reference_model:
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`docs/reference-models/linear-static-mitc4-shell-reference-models.md`
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- source_requirement: `docs/requirements/linear-static-mitc4-shell.md`
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- source_formulation: `docs/formulations/mitc4-shell-formulation.md`
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- source_numerical_review:
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`docs/numerical-reviews/linear-static-mitc4-shell-review.md`
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- source_io_definition: `docs/io-definitions/linear-static-mitc4-shell-io.md`
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- status: `pass-for-release-agent`
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- owner_agent: `physics-evaluation-agent`
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- date: `2026-08-13`
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This verdict means that the documented physical checks pass and the Release Agent
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may audit release readiness. It does not approve release readiness, re-approve the
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reference comparison, or change its tolerance decision.
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## Input Evidence
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The prerequisite reference-verification report has status
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`pass-for-physics-evaluation`. The existing S4 reference-test route was rebuilt and
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executed to regenerate fresh FESA evidence. Abaqus and other reference solvers were
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not executed.
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| evidence | exact path or identity | status | notes |
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| --- | --- | --- | --- |
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| build/test report | `docs/build-test-reports/linear-static-mitc4-shell-build-test.md` | `pass-for-reference-verification` | Clean MSVC x64 Debug build, focused `87/87`, lifecycle `10/10`, reference `8/8`, and full `144/144` CTest passed. |
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| reference verification | `docs/reference-verifications/linear-static-mitc4-shell-reference-verification.md` | `pass-for-physics-evaluation` | Required prerequisite satisfied; 147/147 blocking U rows passed and no UR warning was emitted. |
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| solver HDF5 | `.harness/build/reference/mitc4-shell-s4-comparison/results.h5` | present and readable | Freshly generated, 95,024 bytes; observed raw SHA-256 `E102D80E82BA133EBDF1C5532F3A0A4FE9984AB6CC36D00264399F7308D9230F` (inventory only). |
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| comparison ledger | `.harness/build/reference/mitc4-shell-s4-comparison/comparison.json` | present and passing | 94,349 bytes; SHA-256 `8E8DEA51B6F7C663BACC41FDA6103A4596DB26E02F1EAD6069D458F51E0102E6`; `passed=true`. |
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| declared S4 input | `reference/shell/shell.inp` | present, unchanged, read-only | SHA-256 `4005851E1AB22FD3A16AC17A8D5DA3E051233F69F37419079F3553AD134ECFCF`. |
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| declared displacement CSV | `reference/shell/shell displacements.csv` | present, unchanged, read-only | SHA-256 `C81D94E0B4A849F87AA0F79C83A79B94D5661AC79E44ED826919AB432C87746B`. |
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| optional Abaqus reaction/stress CSVs | `reference/shell/shell reactions.csv`, `reference/shell/shell stresses.csv` | not used as equality gates | Their presence did not expand the approved U-only blocking boundary. |
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| solver CSV views | N/A | not generated | HDF5 was inspected directly. |
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| fresh S4 route | `.harness/build`, MSVC x64 Debug | pass | `Mitc4S4Reference.*` passed `2/2`. |
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The HDF5 contains 49 nodes, 36 source-`S4` elements, internal formulation
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`FESA-MITC4`, and the required full `2 x 2 x 2` result inventory. All inspected
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numeric model and result values were finite. The diagnostics dataset contains four
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approved warning rows for ignored `PREPRINT`, `RESTART`, and `OUTPUT` keywords and
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no error diagnostic.
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Raw HDF5 bytes are not a physics decision identity and may change across valid
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regenerations. The projected values and deterministic comparison ledger are the
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relevant evidence.
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### Documented model expectation
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The reference input is a flat `10 x 10`, thickness `0.5`, homogeneous isotropic
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square plate with `E=2.1e11` and `nu=0.3`. Its 24 perimeter nodes are fully clamped
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in all six global DOFs, and center node 2 at the global origin carries one
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`F3=-100000` concentrated force. The geometry, boundary, material, and load are
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symmetric about both global `x=0` and `y=0` planes.
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The documented physical expectations are therefore:
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- total constrained reaction force opposes the applied `-Z` force;
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- total force and moment about the global origin balance within the approved
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normalized `1e-10` limit;
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- perimeter displacements are zero and the interior deflects in `-Z`, with the
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largest magnitude at the center;
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- the displacement and rotation field obeys the polar/axial-vector reflection
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parity about both symmetry planes;
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- a linear, flat transverse plate response has no membrane strain/resultant or
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middle-surface in-plane stress, while bottom and top in-plane stresses reverse;
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- stored physical strain energy is finite, strictly positive, and consistent with
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the recovered generalized fields and `0.5 F^T d`;
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- free residual, finite results, rank/rigid-mode evidence, and the approved
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one-case coverage show no rigid-body or unsupported-mode symptom.
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## Physics Checks
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| check | documented expectation | observed evidence | verdict | classification |
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| --- | --- | --- | --- | --- |
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| global equilibrium | Applied plus constrained reaction force/moment about origin; normalized metrics `<=1e-10` | force residual `[0,0,-1.12049747258425e-9]`; moment residual `[6.45741238258779e-10,-2.63753463514149e-10,0]`; normalized force/moment `1.12049747258425e-14` / `2.35981341581908e-15` | pass | N/A |
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| reaction consistency | Perimeter-only reactions from full residual oppose `F3=-100000`; constrained motion is zero | summed constrained force `[0,0,99999.9999999989]`; constrained displacement exactly zero | pass | N/A |
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| displacement direction | Interior bends in `-Z`; center is maximum; no in-plane or drilling leakage | center `U3=-2.35504417650849e-5`; all 25 free-node U3 values nonpositive; `U1/U2/UR3` exactly zero | pass | N/A |
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| symmetry | Correct polar/axial reflection parity about `x=0` and `y=0` | max absolute reflection mismatch `4.27126230127111e-20` / `2.29087480670778e-20` | pass | N/A |
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| element force balance | No documented direct element-end-action output exists for shell GP resultants | Global assembled residual/equilibrium passed; direct element-end-action balance is skipped rather than inferred from mismatched locations | skipped | N/A |
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| recovered resultant consistency | `N=A*epsilon0`, `M=D*kappa`, `Q=As*gamma0` at each of 144 GP rows | absolute L2 residual `9.9301874551584e-12`; normalized L2 `5.56240926027087e-17` | pass | N/A |
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| stress/location/sign sanity | Local `[S11,S22,S12]` at bottom/middle/top; middle zero and faces reverse for this linear flat bending field | absolute L2 constitutive residual `1.29488994752188e-9`; normalized `3.05323934859307e-16`; middle stress exactly zero; face reversal exact | pass | N/A |
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| rigid body/nonfinite | Complete constraints, finite solution, acceptable residual, no abnormal uncontrolled mode | zero nonfinite values; `FREE_RESIDUAL_NORMALIZED=1.07747756058988e-14`; rank/rigid-mode tests passed upstream | pass | N/A |
|
||||
| physical energy | Positive and consistent physical-only energy; no drilling-energy gate | `1.17752208825422`; independently recovered value identical to relative `1.88569375589575e-16`; `0.5F^Td=1.17752208825424` | pass | N/A |
|
||||
| model coverage | Approved sole S4 case plus declared invariant/patch/common-path portfolio | S4 case covers end-to-end symmetric plate response; focused build/test portfolio passed; expanded models are explicitly nonblocking | pass | N/A |
|
||||
|
||||
### 1. Global force and moment equilibrium
|
||||
|
||||
The reaction dataset is the assembled full residual `K*d-F`. Applying the
|
||||
constraint mask gives
|
||||
|
||||
```text
|
||||
sum constrained RF = [0, 0, 99999.9999999989]
|
||||
sum applied F = [0, 0, -100000]
|
||||
force residual = [0, 0, -1.12049747258425e-9]
|
||||
```
|
||||
|
||||
The load acts at the global origin and therefore contributes no origin moment.
|
||||
The constrained force and moment rows give
|
||||
|
||||
```text
|
||||
moment residual = [ 6.45741238258779e-10,
|
||||
-2.63753463514149e-10,
|
||||
0 ]
|
||||
```
|
||||
|
||||
These independently reconstructed values match the stored HDF5 equilibrium vector
|
||||
exactly. The serialized normalized metrics are:
|
||||
|
||||
| metric | value | threshold | result |
|
||||
| --- | ---: | ---: | --- |
|
||||
| `FREE_RESIDUAL_NORMALIZED` | `1.07747756058988e-14` | `1.0e-10` | pass |
|
||||
| `FORCE_BALANCE_NORMALIZED` | `1.12049747258425e-14` | `1.0e-10` | pass |
|
||||
| `MOMENT_BALANCE_NORMALIZED` | `2.35981341581908e-15` | `1.0e-10` | pass |
|
||||
|
||||
### 2. Reaction consistency and constrained/free meaning
|
||||
|
||||
The 24 perimeter nodes provide 144 constrained DOFs; the remaining 150 DOFs are
|
||||
free. The HDF5 constraint mask agrees with the input set exactly, all prescribed
|
||||
values are zero, and the maximum constrained displacement is exactly zero.
|
||||
|
||||
The total positive `RF3=99999.9999999989` opposes the center `F3=-100000`. The
|
||||
nearly zero total `RF1/RF2` and origin `RM1/RM2/RM3` are required by the centered
|
||||
load and double symmetry. The largest raw free residual component is
|
||||
`7.62156560085714e-10`; because translational and rotational entries have different
|
||||
dimensions, the decision uses the documented normalized metric rather than this
|
||||
raw maximum. The normalized free residual passes by more than three orders of
|
||||
magnitude.
|
||||
|
||||
### 3. Displacement direction and deformation mode
|
||||
|
||||
Center node 2 has
|
||||
|
||||
```text
|
||||
[U1,U2,U3,UR1,UR2,UR3]
|
||||
= [0, 0, -2.35504417650849e-5, 0, 0, 0]
|
||||
```
|
||||
|
||||
Every free-node `U3` is nonpositive, the center is the maximum-magnitude
|
||||
translation, and every clamped boundary displacement is zero. Across the complete
|
||||
model, maximum absolute `U1`, `U2`, and `UR3` are exactly zero. Maximum absolute
|
||||
`UR1` and `UR2` are `7.55060026636931e-6` and
|
||||
`7.55060026636933e-6`, respectively. This is the expected symmetric plate-bending
|
||||
mode under a negative transverse center load, with no in-plane or drilling
|
||||
deformation leakage.
|
||||
|
||||
### 4. Reflection symmetry and expected zeros
|
||||
|
||||
For reflection through `x=0`, polar displacement components transform as
|
||||
`[-U1,+U2,+U3]`, while the axial rotation vector transforms as
|
||||
`[+UR1,-UR2,-UR3]`. Reflection through `y=0` similarly uses
|
||||
`[+U1,-U2,+U3,-UR1,+UR2,-UR3]`.
|
||||
|
||||
All 294 scalar nodal component comparisons per reflection were paired by source
|
||||
coordinates. The maximum absolute mismatch was `4.27126230127111e-20` for the
|
||||
`x` reflection and `2.29087480670778e-20` for the `y` reflection. The equality
|
||||
evidence is numerical roundoff, not a new acceptance tolerance.
|
||||
|
||||
### 5. Shell generalized resultants and physical work signs
|
||||
|
||||
At every one of 36 elements times four midsurface Gauss locations, an independent
|
||||
constitutive reconstruction applied the documented centered-section identities:
|
||||
|
||||
```text
|
||||
N = A * epsilon0
|
||||
M = D * kappa
|
||||
Q = As * gamma0
|
||||
```
|
||||
|
||||
The complete 1,152-component resultant comparison has absolute L2 residual
|
||||
`9.9301874551584e-12` and normalized L2 residual
|
||||
`5.56240926027087e-17`. All membrane strains and `N` resultants are exactly zero,
|
||||
as required for this linear flat plate bending response.
|
||||
|
||||
The generalized work density `generalized_strain dot section_resultant` is strictly
|
||||
positive at all 144 locations: minimum `4.46321446508071e-4`, maximum
|
||||
`1.27059464107458e-1`, negative count `0`. This supports the physical sign and
|
||||
component-order interpretation.
|
||||
|
||||
The shell contract does not expose element-end nodal actions and explicitly forbids
|
||||
averaging mismatched result locations. Consequently a separate GP-to-element-end
|
||||
force-balance assertion is not documented and is marked `skipped`; the assembled
|
||||
global residual and equilibrium checks provide the required force-balance evidence.
|
||||
|
||||
### 6. Stress component, location, and sign sanity
|
||||
|
||||
HDF5 stores local in-plane `[S11,S22,S12]` directly at each GP and ordered section
|
||||
positions `BOTTOM(-1), MIDDLE(0), TOP(+1)`. Independent reconstruction used
|
||||
`Cps*(epsilon0+z*kappa)` at all 432 section locations. The absolute L2 residual is
|
||||
`1.29488994752188e-9`, or normalized `3.05323934859307e-16`, against a maximum
|
||||
absolute stored stress of `313250.779137971`.
|
||||
|
||||
All middle-surface in-plane stresses are exactly zero. For every component and GP,
|
||||
bottom and top stresses are equal in magnitude and opposite in sign. This is the
|
||||
documented curvature/stress-location convention for a centered homogeneous section.
|
||||
No `S33`, `S13`, `S23`, nodal stress, or Abaqus stress equality was inferred.
|
||||
|
||||
### 7. Physical energy, residual, and rigid-body symptoms
|
||||
|
||||
The stored `PHYSICAL_STRAIN_ENERGY` is finite and positive:
|
||||
|
||||
```text
|
||||
HDF5 physical energy = 1.17752208825422
|
||||
independent GP generalized energy = 1.17752208825422
|
||||
0.5 * F^T * d = 1.17752208825424
|
||||
```
|
||||
|
||||
The HDF5-versus-recovered normalized difference is
|
||||
`1.88569375589575e-16`; the final fresh HDF5-versus-external-work normalized
|
||||
difference is `9.14561471609432e-15`. The HDF5 value excludes numerical drilling stabilization,
|
||||
as required. No drilling-energy ratio, calibration, or warning criterion was
|
||||
introduced.
|
||||
|
||||
The solution is finite, the full perimeter support is enforced, the expected
|
||||
deformation mode is smooth and symmetric, all three normalized verification
|
||||
metrics pass `1e-10`, and the build/test evidence passes six-rigid-mode,
|
||||
stabilized-rank, non-rigid positive-energy, and pure-drill separation tests. No
|
||||
rigid-body, singular, nonfinite, or abnormal-mode symptom is present.
|
||||
|
||||
### 8. Approved model coverage
|
||||
|
||||
The sole approved reference model provides end-to-end evidence for the
|
||||
full-integration `S4 -> FESA-MITC4` path, a nonzero transverse bending response,
|
||||
fully constrained reaction recovery, global force/moment balance, two-axis
|
||||
symmetry, physical energy, and shell result recovery.
|
||||
|
||||
The prerequisite focused `87/87` build/test portfolio supplies the documented
|
||||
complementary element evidence: membrane, bending, transverse-shear and twist patch
|
||||
fields; six physical rigid modes; expected physical/stabilized rank; frame and
|
||||
energy invariance; fixed numerical drilling and physical-recovery separation; and
|
||||
S4/S4R common-kernel/source-metadata behavior. The reference verification supplies
|
||||
the approved external displacement comparison.
|
||||
|
||||
This is the complete approved coverage for the feature. Pinched-cylinder,
|
||||
hemisphere, Scordelis-Lo, locking/convergence sequences, drilling calibration,
|
||||
expanded distorted/curved portfolios, and `NR-O01` through `NR-O04` are explicitly
|
||||
nonblocking or out of scope and were not invented as new physics gates.
|
||||
|
||||
## Execution Evidence
|
||||
|
||||
| order | exact command or read-only operation | exit code | result |
|
||||
| ---: | --- | ---: | --- |
|
||||
| 1 | `cmake --build .harness/build --config Debug --target fesa_reference_tests` | `0` | Existing S4 reference route rebuilt. |
|
||||
| 2 | `ctest --test-dir .harness/build -C Debug -R '^Mitc4S4Reference\.' --output-on-failure` | `0` | Fresh S4 tests `2/2` passed; FESA HDF5 and ledger regenerated. |
|
||||
| 3 | `h5dump.exe -n .harness/build/reference/mitc4-shell-s4-comparison/results.h5` with HDF5/oneAPI runtime on `PATH` | `0` | Required HDF5 inventory inspected read-only. |
|
||||
| 4 | `h5dump.exe -y -w 0 -m '%.17g' -d <dataset> .harness/build/reference/mitc4-shell-s4-comparison/results.h5` for model nodes/elements/mask/prescribed values, nodal U/R, shell frames/strain/resultant/stress, energy/equilibrium/metrics/diagnostics | `0` | High-precision read-only numerical audit supplied all reported values. |
|
||||
| 5 | PowerShell independent input/mask, reaction/equilibrium, reflection, constitutive recovery, stress-location, energy, finite, and diagnostics audit over the `h5dump` values | `0` | All documented physics assertions passed. |
|
||||
| 6 | `cmake --build .harness/build --config Debug --target fesa_unit_tests fesa_reference_tests`, then `ctest --test-dir .harness/build -C Debug -R 'Mitc4Shell(Kernel|Patch|Drilling|PhysicalRecovery)|ResultRecovery\..*Shell|Mitc4S4Reference' --output-on-failure` | `0` | Final focused verification passed `17/17`; the regenerated ledger retained `passed=true`, 294 rows, and zero warnings. |
|
||||
|
||||
Three intermediate audit-helper incidents were diagnostic-only and did not alter
|
||||
the product or verdict: a compound-record regular expression initially omitted the
|
||||
last node, a PowerShell array-expression initially bound subtraction to an array,
|
||||
and a final optional `h5ls` operand-order probe exited `1`. The root causes were
|
||||
confirmed as audit-command/parser usage, while successful high-precision HDF5
|
||||
inspection established 49/49 nodes and the complete evidence above. They are not
|
||||
solver, HDF5-schema, reference, or physics failures.
|
||||
|
||||
## Failure Classification
|
||||
|
||||
- classification: `N/A`
|
||||
- primary_failure: `N/A`
|
||||
- evidence: all documented force/moment equilibrium, reaction, displacement,
|
||||
symmetry, recovery, stress-location, physical-energy, residual, finite-result,
|
||||
rigid-mode and approved coverage checks passed
|
||||
- correction_handoff: `N/A`
|
||||
- non_gating_incident: resolved read-only audit helper parsing/usage errors only
|
||||
|
||||
## Evaluation Verdict
|
||||
|
||||
- verdict: `pass-for-release-agent`
|
||||
- reason: the prerequisite reference status is valid and fresh FESA S4 evidence
|
||||
satisfies every documented physical expectation under its approved threshold;
|
||||
no implementation, formulation, I/O, model-coverage, nonfinite, rigid-body, or
|
||||
environment failure remains
|
||||
- release_approval: `not granted by this report`
|
||||
- reference_reapproval: `not performed by this report`
|
||||
|
||||
## Handoff Recommendation
|
||||
|
||||
| target_agent | reason | required_input |
|
||||
| --- | --- | --- |
|
||||
| Release Agent | All documented MITC4 physics checks passed. | This report, the build/test and reference-verification reports, the fresh build-local HDF5/comparison evidence, and the nonblocking limitations below. |
|
||||
|
||||
## No-Change Assertion
|
||||
|
||||
- source_files_modified: `false`
|
||||
- test_files_modified: `false`
|
||||
- cmake_files_modified: `false`
|
||||
- requirements_modified: `false`
|
||||
- formulation_modified: `false`
|
||||
- numerical_review_modified: `false`
|
||||
- io_contract_modified: `false`
|
||||
- reference_model_contract_modified: `false`
|
||||
- build_test_report_modified: `false`
|
||||
- reference_verification_report_modified: `false`
|
||||
- phase_files_modified: `false`
|
||||
- tolerance_policies_modified: `false`
|
||||
- reference_artifacts_modified: `false`
|
||||
- Abaqus_or_other_reference_solver_executed: `false`
|
||||
- owned_report_created: `true`
|
||||
- generated_build_local_evidence: `true`, ignored under `.harness/build/`
|
||||
- pre_existing_untracked_build_test_report_preserved: `true`
|
||||
- pre_existing_untracked_reference_verification_report_preserved: `true`
|
||||
|
||||
## Open Issues
|
||||
|
||||
- Nonblocking coverage limitation: the approved external reference inventory is one
|
||||
flat, symmetric, fully clamped S4 plate. The approved analytical/unit portfolio
|
||||
supplies membrane, shear, twist, rigid-mode, rank, drilling-separation and S4R
|
||||
common-path evidence. No broader Abaqus or benchmark portfolio is claimed.
|
||||
- Known original-MITC4 limitations remain: transverse-shear locking is mitigated by
|
||||
the tying field, but distorted-curved membrane locking and broader thin/thick mesh
|
||||
convergence are not characterized by this release gate.
|
||||
- Source `S4R` maps to the same full-integration FESA kernel and is not compared to
|
||||
the optional Abaqus S4R artifacts. This is an approved boundary, not missing
|
||||
physics evidence.
|
||||
- The fixed numerical drilling stiffness is not a physical stress/resultant/energy
|
||||
channel. No drilling calibration, coefficient sweep, energy-ratio gate, or
|
||||
director-parallel moment support is claimed.
|
||||
- Geometrically nonlinear execution remains outside the current feature even though
|
||||
future-only residual/tangent equations are documented. No nonlinear release claim
|
||||
is made.
|
||||
- No open issue blocks Release Agent review.
|
||||
@@ -0,0 +1,242 @@
|
||||
# Linear Static MITC4 Shell Reference Verification Report
|
||||
|
||||
## Metadata
|
||||
|
||||
- feature_id: `linear-static-mitc4-shell`
|
||||
- model_id: `shell-s4`
|
||||
- source_head: `820ba30c717b3d0e113775608e20dfd5fbc05d53`
|
||||
- source_build_test_report:
|
||||
`docs/build-test-reports/linear-static-mitc4-shell-build-test.md`
|
||||
- source_reference_models:
|
||||
`docs/reference-models/linear-static-mitc4-shell-reference-models.md`
|
||||
- source_io_definition: `docs/io-definitions/linear-static-mitc4-shell-io.md`
|
||||
- source_requirements: `docs/requirements/linear-static-mitc4-shell.md`
|
||||
- status: `pass-for-physics-evaluation`
|
||||
- owner_agent: `reference-verification-agent`
|
||||
- date: `2026-08-13`
|
||||
|
||||
The prerequisite build/test report has status `pass-for-reference-verification`.
|
||||
This report verifies only the approved full-integration S4 displacement case. It
|
||||
does not compare S4R artifacts, claim Abaqus formulation equivalence, approve
|
||||
physics sanity, or approve release readiness.
|
||||
|
||||
## Verdict
|
||||
|
||||
The reference-comparison gate passes. The fresh FESA result has an exact
|
||||
294-row identity match to the read-only Abaqus displacement CSV. All 147 blocking
|
||||
`U1/U2/U3` rows satisfy the fixed absolute tolerance `1.0e-5`. All 147
|
||||
warning-only `UR1/UR2/UR3` rows also satisfy `1.0e-5`, so no rotational warning
|
||||
was emitted.
|
||||
|
||||
- declared cases compared: `1/1`
|
||||
- blocking rows passed: `147/147`
|
||||
- blocking failures: `0`
|
||||
- warning-only rows compared: `147/147`
|
||||
- warning-only exceedances and warnings: `0/0`
|
||||
- missing / extra / duplicate / nonfinite rows: `0 / 0 / 0 / 0`
|
||||
- largest blocking normalized error: `0.0190378534915144`
|
||||
- comparison verdict: `passed=true`
|
||||
|
||||
## Artifact Inventory
|
||||
|
||||
| item | exact path | status | direct evidence |
|
||||
| --- | --- | --- | --- |
|
||||
| declared S4 input | `reference/shell/shell.inp` | present, unchanged | 4,770 bytes; SHA-256 `4005851E1AB22FD3A16AC17A8D5DA3E051233F69F37419079F3553AD134ECFCF` |
|
||||
| required displacement CSV | `reference/shell/shell displacements.csv` | present, unchanged | 5,592 bytes; SHA-256 `C81D94E0B4A849F87AA0F79C83A79B94D5661AC79E44ED826919AB432C87746B`; 49 wide rows and six finite components per row |
|
||||
| authoritative solver output | `.harness/build/reference/mitc4-shell-s4-comparison/results.h5` | present, valid | 95,024 bytes after a fresh verification run; observed raw SHA-256 `E88E5E5E1F83AB95CAE545AD1F28F896D3FCB82F3EA2B8006A3A703FED07A5CB` (non-decision inventory only) |
|
||||
| deterministic comparison ledger | `.harness/build/reference/mitc4-shell-s4-comparison/comparison.json` | present, valid | 94,349 bytes; SHA-256 `8E8DEA51B6F7C663BACC41FDA6103A4596DB26E02F1EAD6069D458F51E0102E6`; `passed=true` |
|
||||
| S4R reference artifacts | `reference/shellR/` | not consumed | Excluded from the approved acceptance comparison. |
|
||||
| reaction and stress CSVs | other files under `reference/shell/` | not consumed | Optional inspection evidence only; not an equality gate. |
|
||||
| FESA-derived CSV | N/A | not generated | HDF5 was compared directly to the Abaqus CSV. |
|
||||
|
||||
The input and required CSV had identical SHA-256 values and identical UTC
|
||||
modification times (`2026-08-11T11:44:40.9520527Z`) before and after the fresh
|
||||
comparison runs. `git diff --name-only -- reference` and
|
||||
`git status --short -- reference` each returned zero paths.
|
||||
|
||||
The HDF5 hash above inventories one fresh generation, not a stable content
|
||||
identity. Raw HDF5 bytes changed across regenerations while the projected values
|
||||
and deterministic JSON ledger remained identical; concurrent executions of the
|
||||
same ignored build-local route may replace the file again. This report does not
|
||||
claim byte-identical HDF5 container output.
|
||||
|
||||
### Authoritative HDF5 projection audit
|
||||
|
||||
The comparator and a read-only HDF5 2.1.1 inspection established:
|
||||
|
||||
- `/metadata`: schema version `0`, feature `linear-static-mitc4-shell`, solver
|
||||
version `0.1.0`, `Step-1`, frame `0`, internal formulation `FESA-MITC4`, and
|
||||
integration rule `2x2x2-gauss; mitc4-edge-midpoint-shear`;
|
||||
- source input identity:
|
||||
`path=C:/Users/baram/orca/workspaces/FESADev/MITC4/reference/shell/shell.inp;content_identity=fnv1a64:cf0795df753d377e`;
|
||||
- `/model/nodes`: 49 compound rows with ordered fields
|
||||
`internal_node_id`, `instance_name`, `source_label`, and `coordinates`;
|
||||
- `/model/elements`: 36 compound rows, source element type `S4`, and internal
|
||||
formulation `FESA-MITC4`;
|
||||
- `/steps/Step-1/frames/0/nodal/displacement`: float64 shape `[49,6]`, global
|
||||
nodal components `[UX,UY,UZ,URX,URY,URZ]`, mapped to
|
||||
`[U1,U2,U3,UR1,UR2,UR3]`;
|
||||
- all projected source identities and displacement values are unique and finite.
|
||||
|
||||
## Comparison Contract
|
||||
|
||||
- case identity: `shell-s4`
|
||||
- authoritative FESA dataset:
|
||||
`/steps/Step-1/frames/0/nodal/displacement`
|
||||
- HDF5 node identity source: `/model/nodes.instance_name` and
|
||||
`/model/nodes.source_label`
|
||||
- normalized key:
|
||||
`(case_id, instance_name, source_node_label, component)`
|
||||
- observed instance: `Part-1-1`
|
||||
- observed source nodes: 49 unique labels
|
||||
- CSV projection: trimmed `Part Instance Name`, `Node Label`, `U-U1`, `U-U2`,
|
||||
`U-U3`, `UR-UR1`, `UR-UR2`, and `UR-UR3`
|
||||
- stable component order: `[U1,U2,U3,UR1,UR2,UR3]`
|
||||
- blocking inventory: `U1/U2/U3`
|
||||
- warning-only inventory: `UR1/UR2/UR3`
|
||||
- row precheck: exact key set, unique rows, finite HDF5/reference values, and
|
||||
exact required HDF5 schema before tolerance evaluation
|
||||
- tolerance source: requirements `FESA-REQ-LSMITC4-058` through `064`, the I/O
|
||||
definition Section 7, and the approved reference-model contract Section 5
|
||||
- row tolerance: `abs(fesa-reference) <= 1.0e-5`
|
||||
- tolerance-normalized error: `absolute_error / 1.0e-5`
|
||||
- `reference_scale`: diagnostic only; it does not alter the tolerance or verdict
|
||||
- zero policy: no clamp, substitution, omission, averaging, or row-order matching
|
||||
|
||||
Independent ledger reconstruction found 294 projected CSV keys, 294 comparison
|
||||
keys, zero duplicate keys, and exact set equality. All 294 serialized row
|
||||
tolerances equal `1.0e-5`. The complete per-row decisions remain in the
|
||||
identified deterministic `comparison.json`.
|
||||
|
||||
## Execution Evidence
|
||||
|
||||
The existing FESA S4 reference route was used; Abaqus and other reference solvers
|
||||
were not executed. The first run regenerated the evidence after its test-owned
|
||||
output directory cleanup. Further exact reruns confirmed the ledger bytes and the
|
||||
final verification assertions.
|
||||
|
||||
| order | exact command | exit code | result |
|
||||
| ---: | --- | ---: | --- |
|
||||
| 1 | `cmake --build .harness/build --config Debug --target fesa_reference_tests` | `0` | Reference test executable built; duration `1.830 s`. |
|
||||
| 2 | `ctest --test-dir .harness/build -C Debug -R '^Mitc4S4Reference\.' --output-on-failure` | `0` | Fresh S4 E2E tests `2/2` passed; duration `0.760 s`. |
|
||||
| 3 | PowerShell CSV/JSON identity and metric audit | `0` | 294 exact keys; missing/extra/duplicate/nonfinite/nonfixed-tolerance counts all zero. |
|
||||
| 4 | `ctest --test-dir .harness/build -C Debug -R '^Mitc4S4Reference\.' --output-on-failure` | `0` | Repeat S4 E2E tests `2/2` passed; duration `0.911 s`; JSON hash unchanged. |
|
||||
| 5 | `h5dump.exe -A -g '/metadata' <results.h5>` with HDF5 and Intel oneAPI 2026.1 runtime directories prepended to `PATH` | `0` | Required metadata values inspected read-only. |
|
||||
| 6 | `h5dump.exe -H -d '/model/nodes' <results.h5>` | `0` | Compound schema and shape `[49]` inspected. |
|
||||
| 7 | `h5dump.exe -H -d '/model/elements' <results.h5>` | `0` | Compound schema and shape `[36]` inspected. |
|
||||
| 8 | `h5dump.exe -H -d '/steps/Step-1/frames/0/nodal/displacement' <results.h5>` | `0` | Float64 displacement schema and shape `[49,6]` inspected. |
|
||||
| 9 | Final `ctest --test-dir .harness/build -C Debug -R '^Mitc4S4Reference\.' --output-on-failure` plus report/metric assertion script | `0` | S4 E2E tests `2/2`; `verification=PASS`; final generated artifacts retained. |
|
||||
| 10 | `git diff --check` | `0` | Report patch has no whitespace errors. |
|
||||
| 11 | target-only Git scope and reference no-change audit | `0` | Only this owned report and the pre-existing untracked build/test report are visible; reference scope remains clean. |
|
||||
|
||||
An initial optional `h5dump` probe without the Intel runtime directory exited
|
||||
`-1073741515` because `libmmd.dll` was not on that process's `PATH`. The same
|
||||
read-only inspection passed after adding the installed oneAPI runtime path. This
|
||||
was an inspection-environment incident, not a solver, schema, comparison, or
|
||||
reference-artifact failure.
|
||||
|
||||
The repeated JSON ledger was byte-identical:
|
||||
|
||||
- size: `94,349` bytes
|
||||
- SHA-256 before and after repeat: `8E8DEA51B6F7C663BACC41FDA6103A4596DB26E02F1EAD6069D458F51E0102E6`
|
||||
- row decisions: `294`
|
||||
- component metrics: `6`
|
||||
- node vector metrics: `49`
|
||||
- warnings: `0`
|
||||
- verdict: `passed=true`
|
||||
|
||||
## Quantity Results
|
||||
|
||||
`max_rel` is calculated only for nonzero Abaqus values and is diagnostic. Tiny
|
||||
reference residues make it ill-conditioned; the acceptance decision uses only
|
||||
the fixed absolute tolerance and its fixed-tolerance-normalized error.
|
||||
|
||||
| quantity | components | behavior | compared | missing | extra | duplicate | nonfinite | max abs | max rel | max normalized | RMS | L2 norm | worst ID/component by abs error | result |
|
||||
| --- | --- | --- | ---: | ---: | ---: | ---: | ---: | ---: | ---: | ---: | ---: | ---: | --- | --- |
|
||||
| displacement | `U1/U2/U3` | blocking | 147 | 0 | 0 | 0 | 0 | `1.90378534915144e-7` | `1.0` | `0.0190378534915144` | `2.45308118840709e-8` | `2.97420287738877e-7` | `Part-1-1`, node 2, `U3` | pass |
|
||||
| rotation | `UR1/UR2/UR3` | warning-only | 147 | 0 | 0 | 0 | 0 | `6.88285496274043e-8` | `35.7165926082675` | `0.00688285496274043` | `2.26478498250615e-8` | `2.74590586054375e-7` | `Part-1-1`, node 44, `UR1` | pass, no warning |
|
||||
|
||||
The translational maximum relative error `1.0` occurs on near-zero reference
|
||||
residue, including node 1 `U3=-1.17769804e-32`. The rotational maximum relative
|
||||
error `35.7165926082675` occurs at node 2 `UR2`, where the reference is
|
||||
`1.3860685e-22` and the absolute error is only `4.95056439416524e-21`.
|
||||
Neither value was clamped or omitted, and neither relative diagnostic controls
|
||||
the verdict.
|
||||
|
||||
### Component metrics
|
||||
|
||||
Each component contains 49 matched rows. `reference_scale` is retained only as
|
||||
diagnostic information. `L2 norm` is the comparator's component
|
||||
`vector_norm_error`, and `worst_row` is the zero-based index in the JSON ledger.
|
||||
|
||||
| component | behavior | reference scale | tolerance | max abs | max rel | max normalized | RMS | L2 norm | worst row | worst identity | result |
|
||||
| --- | --- | ---: | ---: | ---: | ---: | ---: | ---: | ---: | ---: | --- | --- |
|
||||
| `U1` | blocking | `3.11730945e-23` | `1.0e-5` | `3.11730945e-23` | `1.0` | `3.11730945e-18` | `1.13587076092006e-23` | `7.95109532644045e-23` | 66 | node 12 / `U1` | pass |
|
||||
| `U2` | blocking | `3.11730945e-23` | `1.0e-5` | `3.11730945e-23` | `1.0` | `3.11730945e-18` | `1.13587076092006e-23` | `7.95109532644045e-23` | 61 | node 11 / `U2` | pass |
|
||||
| `U3` | blocking | `2.37408203e-5` | `1.0e-5` | `1.90378534915144e-7` | `1.0` | `0.0190378534915144` | `4.24886125341252e-8` | `2.97420287738877e-7` | 8 | node 2 / `U3` | pass |
|
||||
| `UR1` | warning-only | `7.60725743e-6` | `1.0e-5` | `6.88285496274043e-8` | `11.9344619221920` | `0.00688285496274043` | `2.77378379212910e-8` | `1.94164865449037e-7` | 261 | node 44 / `UR1` | pass, no warning |
|
||||
| `UR2` | warning-only | `7.60725743e-6` | `1.0e-5` | `6.88285496273990e-8` | `35.7165926082675` | `0.00688285496273990` | `2.77378379212909e-8` | `1.94164865449036e-7` | 202 | node 34 / `UR2` | pass, no warning |
|
||||
| `UR3` | warning-only | `5.27113701e-25` | `1.0e-5` | `5.27113701e-25` | `1.0` | `5.27113701e-20` | `2.12986098533393e-25` | `1.49090268973375e-24` | 203 | node 34 / `UR3` | pass, no warning |
|
||||
|
||||
### Worst rows and node-vector metrics
|
||||
|
||||
- global worst and worst blocking row: `shell-s4`, `Part-1-1`, node 2,
|
||||
`U3`; FESA `-2.35504417650849e-5`, Abaqus `-2.37408203e-5`, absolute
|
||||
error `1.90378534915144e-7`, tolerance `1.0e-5`, normalized error
|
||||
`0.0190378534915144`, within tolerance;
|
||||
- worst warning-only row: `shell-s4`, `Part-1-1`, node 44, `UR1`; FESA
|
||||
`1.39850632037260e-6`, Abaqus `1.46733487e-6`, absolute error
|
||||
`6.88285496274043e-8`, normalized error `0.00688285496274043`, within
|
||||
tolerance;
|
||||
- maximum per-node displacement-vector error: `1.90378534915144e-7` at
|
||||
`Part-1-1`, node 2;
|
||||
- maximum per-node rotation-vector error: `7.21144690026432e-8` at
|
||||
`Part-1-1`, node 39.
|
||||
|
||||
## Failure Classification
|
||||
|
||||
- classification: `N/A`
|
||||
- primary_failure: `N/A`
|
||||
- evidence: declared artifacts exist; the authoritative HDF5 projection passed
|
||||
schema and identity checks; 294/294 exact row keys are unique and finite;
|
||||
147/147 blocking rows pass; zero rotational exceedances or warnings occurred
|
||||
- correction_handoff: `N/A`
|
||||
|
||||
The optional first `h5dump` runtime-path incident is classified as a resolved
|
||||
inspection-environment incident and does not affect this gate.
|
||||
|
||||
## Handoff Recommendation
|
||||
|
||||
| target_agent | reason | required input |
|
||||
| --- | --- | --- |
|
||||
| Physics Evaluation Agent | All declared blocking reference rows passed the exact approved tolerance, and the warning-only inventory has no exceedance. | This report, `.harness/build/reference/mitc4-shell-s4-comparison/results.h5`, and its deterministic `comparison.json`. |
|
||||
|
||||
The handoff status is `pass-for-physics-evaluation` only. Physics Evaluation
|
||||
remains responsible for equilibrium, reaction sign, displacement direction,
|
||||
symmetry, physical energy, result signs, and model-coverage adequacy.
|
||||
|
||||
## No-Change Assertion
|
||||
|
||||
- source_files_modified: `false`
|
||||
- test_files_modified: `false`
|
||||
- cmake_files_modified: `false`
|
||||
- requirements_modified: `false`
|
||||
- formulation_modified: `false`
|
||||
- numerical_review_modified: `false`
|
||||
- io_contract_modified: `false`
|
||||
- reference_model_contract_modified: `false`
|
||||
- phase_files_modified: `false`
|
||||
- tolerance_policies_modified: `false`
|
||||
- reference_artifacts_modified: `false`
|
||||
- Abaqus_or_other_reference_solver_executed: `false`
|
||||
- owned_report_created: `true`
|
||||
- generated_build_local_evidence: `true`, ignored under `.harness/build/`
|
||||
- pre_existing_untracked_build_test_report_preserved: `true`
|
||||
|
||||
## Open Issues
|
||||
|
||||
- None blocking Physics Evaluation.
|
||||
- Nonblocking audit note: raw HDF5 container hashes differed across fresh
|
||||
regenerations, while the authoritative projected rows and serialized comparison
|
||||
ledger were stable and the JSON was byte-identical. No HDF5 byte-determinism
|
||||
claim is made by this report.
|
||||
@@ -0,0 +1,294 @@
|
||||
# Linear Static MITC4 Shell Release Report
|
||||
|
||||
## Metadata
|
||||
|
||||
- feature_id: `linear-static-mitc4-shell`
|
||||
- source_requirement: `docs/requirements/linear-static-mitc4-shell.md`
|
||||
- source_research: `docs/research/linear-static-mitc4-shell-research.md`
|
||||
- source_formulation: `docs/formulations/mitc4-shell-formulation.md`
|
||||
- source_numerical_review: `docs/numerical-reviews/linear-static-mitc4-shell-review.md`
|
||||
- source_io_definition: `docs/io-definitions/linear-static-mitc4-shell-io.md`
|
||||
- source_reference_model: `docs/reference-models/linear-static-mitc4-shell-reference-models.md`
|
||||
- source_implementation_plan: `docs/implementation-plans/linear-static-mitc4-shell-implementation-plan.md`
|
||||
- source_implementation_evidence: `phases/linear-static-mitc4-shell/index.json`
|
||||
- source_implementation_report: `N/A`; the project Harness phase index is the implementation completion ledger for this execution
|
||||
- source_correction_report: `N/A`; no final Build/Test, Reference Verification, or Physics Evaluation failure was handed to Correction Agent
|
||||
- source_build_test_report: `docs/build-test-reports/linear-static-mitc4-shell-build-test.md`
|
||||
- source_reference_verification_report: `docs/reference-verifications/linear-static-mitc4-shell-reference-verification.md`
|
||||
- source_physics_evaluation_report: `docs/physics-evaluations/linear-static-mitc4-shell-physics-evaluation.md`
|
||||
- audited_source_head: `820ba30c717b3d0e113775608e20dfd5fbc05d53`
|
||||
- audited_branch: `feat-linear-static-mitc4-shell`
|
||||
- status: `ready-for-release`
|
||||
- owner_agent: `release-agent`
|
||||
- date: `2026-08-13`
|
||||
- release_boundary: internal FESA feature release readiness only; no publish, deploy, package, tag, commit, or external release was performed
|
||||
|
||||
## Release Scope
|
||||
|
||||
| item | included | excluded | notes |
|
||||
| --- | --- | --- | --- |
|
||||
| analysis type | One small-displacement, small-rotation `*STEP, *STATIC` | Multiple steps, geometric/material nonlinearity, buckling, modal, dynamic, contact, thermal | Existing factorize-before-load linear-static lifecycle is retained. |
|
||||
| element type | Four-node source `S4` and `S4R` mapped to one full-integration `FESA-MITC4` path | `S3`, `S8`, `S8R`, continuum/solid/axisymmetric shells, MITC4+, MITC4/D, reduced integration/hourglass behavior | Source type is preserved as metadata; no Abaqus formulation-equivalence claim is made. |
|
||||
| nodal degrees of freedom | Global `[UX,UY,UZ,URX,URY,URZ]`; 20 physical element coordinates plus four numerical drilling coordinates | Physical drilling strain/load/result channel | Director-parallel nodal moment is rejected. |
|
||||
| material and section | Centered, single-layer, homogeneous isotropic linear elasticity with finite valid `E`, `nu`, and constant positive thickness | Composite/laminated or orthotropic sections, offsets, variable/nodal thickness, user orientation | Multiple valid materials/sections/element sets are allowed with exactly one assignment per element. |
|
||||
| geometry | Valid four-node quadrilaterals and smooth shell patches with deterministic geometry-derived directors | Explicit normals/directors, shared-node sharp folds, hinges, shell-beam joints, calibrated distortion/warp thresholds | A physical fold requires duplicated source nodes. |
|
||||
| loads and constraints | Nodal `*BOUNDARY` and global nodal `*CLOAD` on DOFs 1-6, subject to the drilling-moment projection rule | `*DLOAD`, pressure, gravity, body/edge/follower load | Output-request keywords in the allowlist remain warning no-ops. |
|
||||
| authoritative output | HDF5 `results.h5`: nodal displacement/full residual, shell frames, generalized strain/resultant, bottom/middle/top in-plane stress, physical energy, equilibrium, verification metrics, diagnostics | Official CSV solver output, drilling output/energy, `S33`, pointwise `S13/S23`, nodal shell-stress averaging | HDF5 schema version remains `0` and is extended additively. |
|
||||
| external acceptance | Read-only `reference/shell/shell.inp` and `reference/shell/shell displacements.csv`; `U1/U2/U3` blocking at fixed absolute `1.0e-5`; `UR1/UR2/UR3` warning-only at the same value | S4R artifact consumption; Abaqus reaction/stress/strain/resultant equality | Direct HDF5-to-CSV source identity mapping is authoritative. |
|
||||
|
||||
## Gate Evidence Inventory
|
||||
|
||||
| gate | source | expected status/evidence | observed status/evidence | verdict |
|
||||
| --- | --- | --- | --- | --- |
|
||||
| requirements | `docs/requirements/linear-static-mitc4-shell.md` | approved scope, acceptance criteria, tolerance and reference boundary | `approved`; requirements `001-072` are all `must` and covered without gaps | pass |
|
||||
| research | `docs/research/linear-static-mitc4-shell-research.md` | approved evidence with applicability limits | `approved`; no research-owned blocking decision remains | pass |
|
||||
| formulation | `docs/formulations/mitc4-shell-formulation.md` | implementation-ready current linear formulation | `approved-for-implementation-planning`; future nonlinear Section 15 remains explicitly non-executable | pass |
|
||||
| numerical review | `docs/numerical-reviews/linear-static-mitc4-shell-review.md` | `pass-for-implementation-planning` | `pass-for-implementation-planning`; no current-scope blocker | pass |
|
||||
| I/O definition | `docs/io-definitions/linear-static-mitc4-shell-io.md` | approved input/HDF5/comparison contract | `approved-for-implementation-planning`; exact S4-only acceptance boundary and fixed tolerance are present | pass |
|
||||
| reference model | `docs/reference-models/linear-static-mitc4-shell-reference-models.md` | approved exact artifact inventory and row mapping | `approved-for-implementation-planning`; both declared files exist and match hashes | pass |
|
||||
| implementation plan | `docs/implementation-plans/linear-static-mitc4-shell-implementation-plan.md` | approved TDD plan tracing every `must` requirement | `ready-for-implementation`; ranges cover `001-072` exactly once | pass |
|
||||
| implementation | `phases/linear-static-mitc4-shell/index.json` at source HEAD | completed RED/GREEN/VERIFY execution | Steps `0-13` are `completed`; all 14 `stepN-output.json` records have `exitCode=0`; top-level phase is `completed` | pass |
|
||||
| correction | final downstream reports and commit/Harness history | no unresolved implementation-owned failure | `N/A`; final Build/Test and Reference Verification classify correction handoff as `N/A`; historical pre-gate Step 13 retries are closed | pass |
|
||||
| build/test | `docs/build-test-reports/linear-static-mitc4-shell-build-test.md` | `pass-for-reference-verification` | `pass-for-reference-verification`; clean MSVC x64 Debug build, focused `87/87`, `10/10`, `8/8`, full `144/144`, Harness Python `7/7`, zero warnings | pass |
|
||||
| reference verification | `docs/reference-verifications/linear-static-mitc4-shell-reference-verification.md` | `pass-for-physics-evaluation` | `pass-for-physics-evaluation`; exact `294/294` row identity, blocking U `147/147`, UR warnings `0`, invalid rows `0` | pass |
|
||||
| physics evaluation | `docs/physics-evaluations/linear-static-mitc4-shell-physics-evaluation.md` | `pass-for-release-agent` | `pass-for-release-agent`; equilibrium, reaction, direction, symmetry, recovery, stress signs, residual and physical energy pass | pass |
|
||||
|
||||
### Gate Consistency and Staleness Audit
|
||||
|
||||
- Every gate uses `feature_id=linear-static-mitc4-shell`. Build/Test, Reference Verification, and Physics Evaluation all identify source HEAD `820ba30c717b3d0e113775608e20dfd5fbc05d53`, which is the audited current HEAD.
|
||||
- The requirements metadata value `current_product_state=requirements-approved-not-implemented` records the product state when the requirements gate was authored. It is not the requirements gate status and does not alter the later implementation evidence.
|
||||
- Numerical Review values `implementation_complete=false`, `build_test_complete=false`, `reference_comparison_complete=false`, `physics_evaluation_complete=false`, and `release_ready=false` are explicit pre-implementation review boundaries. Later same-feature reports at the audited HEAD supply those downstream decisions. They are phase-time markers, not contradictory live statuses.
|
||||
- No contract meaning, reference inventory, tolerance, or source identity in those earlier documents conflicts with the final reports. The phase-time markers are therefore nonblocking and are not silently treated as current completion claims.
|
||||
- A separate implementation report is nonblocking under the current workflow because the Build/Test report explicitly declares `source_implementation_report=N/A` and points to the Harness index. The index records each RED failure, GREEN behavior, focused/full verification summary and completion timestamp, while all 14 generated step-output records have `exitCode=0`.
|
||||
- A correction report is nonblocking `N/A`: Correction Agent reporting is required after a formal downstream failure handoff. The final formal Build/Test, Reference Verification, and Physics Evaluation gates report no such failure or unresolved defect. Historical implementation-phase retries and correction commits precede the clean independent gates and are closed by the final phase ledger and source HEAD.
|
||||
- The Numerical Review metadata contains two historical commit references (`reviewed_head=cf769aa` and a downstream note naming `a058ef7`). This is a document-history inconsistency, but its mathematical verdict was re-audited against the current tracked requirements/formulation/I/O/reference contracts and independently exercised at `820ba30...`; it does not create a scope, tolerance, or acceptance contradiction.
|
||||
|
||||
## Evidence Hash Inventory
|
||||
|
||||
SHA-256 values are lowercase. The build-local HDF5 container is intentionally not a decision identity because valid regenerations can change raw container bytes; the deterministic projected ledger is the stable comparison evidence.
|
||||
|
||||
| evidence | bytes | SHA-256 | audit role |
|
||||
| --- | ---: | --- | --- |
|
||||
| requirements | 35,124 | `c8966f667ee42c3d35d0bf2f1bc1662a93784a2037d5b191b59793fb5ad66c64` | approved must-requirement baseline |
|
||||
| research | 37,197 | `45f02291c8b2fdc7066cdb938cf6662a97dd3dceb9023fa743fe1c356a7970b4` | theory/benchmark/applicability evidence |
|
||||
| formulation | 57,593 | `117932a112b2ad7f1cb6a8084304733fcd529a675a93cca6364c2f6a16c57cd0` | mathematical implementation contract |
|
||||
| numerical review | 24,406 | `c82bd7b4f14f7664fb082d9a860dc443bf76571affa24caa8a7a9acfba04af1e` | independent formulation gate |
|
||||
| I/O definition | 41,327 | `6f362b16625e61c85949648e6bc1f215c92ff31e99654f6efd9787b428dd54c4` | input/HDF5/comparison contract |
|
||||
| reference model | 6,112 | `978e18485a627b6abf83373f74929cfe564952d29f68574e0cab75ef5e689c44` | exact S4 inventory and row mapping |
|
||||
| implementation plan | 56,316 | `8d269455d0d5fe9bb9dc32f140d1ea6f105bab60ebfe73d368ad8c5225af6482` | TDD task/test traceability |
|
||||
| Harness implementation index | 7,392 | `8c0a7369bc81fc7a12f9f3a49158a9534d4727b9a924c95b1ece7e915d16880d` | 14-step completion ledger |
|
||||
| Build/Test report | 11,970 | `d261e13eb1c6dc20cf24f85ee97a3fcb6b667420486ad12725030e3eebf8dcd1` | independent MSVC/CMake/CTest evidence |
|
||||
| Reference Verification report | 14,362 | `2c69814eeb265bd47672c46e17e2c63d55a0f8d834325c2b0d78e0500a83bade` | fixed-tolerance comparison evidence |
|
||||
| Physics Evaluation report | 19,596 | `d753521c73ac8509fe2d3e2896e2f6dd23a362c0f17f153fadbeb6227b8ed4c6` | physical plausibility evidence |
|
||||
| declared S4 input | 4,770 | `4005851e1ab22fd3a16ac17a8d5da3e051233f69f37419079f3553ad134ecfcf` | immutable reference input |
|
||||
| declared S4 displacement CSV | 5,592 | `c81d94e0b4a849f87aa0f79c83a79b94d5661ac79e44ed826919ab432c87746b` | immutable required reference quantity |
|
||||
| deterministic comparison ledger | 94,349 | `8e8dea51b6f7c663bacc41fda6103a4596db26e02f1ead6069d458f51e0102e6` | `294` row decisions, `passed=true`, zero warnings |
|
||||
|
||||
## Acceptance Traceability
|
||||
|
||||
Evidence abbreviations: `PH` = Harness phase index; `BT` = Build/Test report; `RV` = Reference Verification report; `PE` = Physics Evaluation report. `shell-s4` means the sole declared read-only S4 comparison model. Every row below has priority `must` in the approved requirements baseline.
|
||||
|
||||
| requirement_id | acceptance criterion | test/phase evidence | reference/physics evidence | release disposition |
|
||||
| --- | --- | --- | --- | --- |
|
||||
| `001` | Exactly one supported static step; unsupported procedure or second step fails deterministically. | `InpDomainMapping.*Procedure*`; `Mitc4ShellCli.*`; PH Steps 1/12; BT | N/A | released |
|
||||
| `002` | S4 and S4R map to one FESA MITC4 path without equivalence claim. | `InpDomainMapping.MapsS4AndS4rThroughOneMitc4Identity`; PH Steps 0/1/7; BT | S4R is intentionally non-reference | released |
|
||||
| `003` | Source element type and internal formulation remain separate metadata. | `DomainModel.Mitc4ShellRecordsPreserveSourceAndInternalIdentity`; `Hdf5ResultsWriter.WritesExactShellMetadataAndModelIdentity`; BT | RV HDF5 projection audit | released |
|
||||
| `004` | Four distinct ordered nodes and stable source element identity are enforced. | `InpDomainMapping.RejectsInvalidShellConnectivityOptionsAndMixedModels`; Domain/HDF5 tests; BT | RV observed 36 uniquely identified S4 elements | released |
|
||||
| `005` | Six global DOFs use the exact order and equation ownership remains in DofManager. | `DofManager.BuildsShellScatterInSourceNodeAndComponentOrder`; HDF5 schema tests; PH Steps 0/6/11; BT | RV `[UX,UY,UZ,URX,URY,URZ]` projection | released |
|
||||
| `006` | Valid homogeneous isotropic `E,nu` is accepted and invalid/unsupported material data fails. | `InpDomainMapping.RejectsInvalidShellAssignmentsAndProperties`; `Mitc4ShellConstitutive.*`; BT | PE material audit | released |
|
||||
| `007` | One finite positive constant thickness is accepted for a centered single-layer shell section. | Domain/model/mapping tests; `Mitc4ShellConstitutive.*`; BT | PE thickness/model audit | released |
|
||||
| `008` | Each element resolves to exactly one section and material; missing/conflicting/duplicate assignments fail. | `DomainModel.ShellOwnershipPreservesResolvedAssignmentsAndOptionalFrames`; `InpDomainMapping.RejectsInvalidShellAssignmentsAndProperties`; BT | N/A | released |
|
||||
| `009` | Multiple valid sets/sections/materials are allowed while each element remains homogeneous and single-layer. | Domain/model/mapping suites; PH Steps 0/1; BT | N/A | released |
|
||||
| `010` | Composite, offset, variable thickness, explicit normal and orientation meanings fail closed. | `InpDomainMapping.RejectsInvalidShellConnectivityOptionsAndMixedModels`; BT | N/A | released |
|
||||
| `011` | Nodal director is a unit vector separate from scalar thickness. | `Mitc4Geometry.BuildsDeterministicFramesForPlanarRotatedAndWarpedElements`; HDF5 director tests; BT | PE finite/model audit | released |
|
||||
| `012` | Element normal candidate follows deterministic source order and tangent cross product. | `Mitc4Geometry.*`; PH Step 2; BT | N/A | released |
|
||||
| `013` | Smooth shared-node directors use deterministic area-weighted averaging. | `Mitc4Geometry.AreaWeightsSharedDirectorsInStableSourceIdentityOrder`; BT | N/A | released |
|
||||
| `014` | Nonfinite/zero/opposed normals fail without an invented smooth-angle threshold. | `Mitc4Geometry.RejectsInvalidSurfaceJacobianAndIncidentOrientationCases`; BT | N/A | released |
|
||||
| `015` | Discontinuous shared-node director fields are not silently averaged; folds require duplicate nodes. | Geometry negative tests and mapper unsupported-scope tests; BT | Documented limitation | released |
|
||||
| `016` | Duplicate, bow-tie, nonfinite, zero-area and nonpositive-J geometry fails at every required point. | `Mitc4Geometry.RejectsInvalidSurfaceJacobianAndIncidentOrientationCases`; `.ExposesTheCompleteRequiredValidationPointInventory`; BT | PE finite-result audit | released |
|
||||
| `017` | Nodal label/set boundary targets support global DOFs 1-6 and zero/nonzero prescribed values. | `EssentialConstraints.PreservesShellSizedNoMixedAndAllConstraintRoundTrips`; `Mitc4ShellCli.AppliesKfcForNonzeroPrescribedDisplacement`; BT | PE constraint-mask audit | released |
|
||||
| `018` | Global nodal force/moment CLOAD components aggregate deterministically. | `LoadAssembly.AggregatesAllSixGlobalShellLoadComponentsInSourceOrder`; BT | PE load/reaction audit | released |
|
||||
| `019` | Aggregate director-parallel moment fails as `unsupported-drilling-load`. | `LoadAssembly.AcceptsExactlyZeroAggregateShellMoment`; `.EnforcesAggregateShellMomentDirectorProjectionThreshold`; PH Step 8; BT | N/A | released |
|
||||
| `020` | Distributed/follower/body/edge load inputs remain unsupported. | `InpDomainMapping.PreservesProcedureLoadAndOutputRequestBoundariesForShells`; BT | Documented limitation | released |
|
||||
| `021` | Only the approved identity-preserving keyword subset plus S4/S4R and shell section is accepted. | `InpDomainMapping.*`; full CTest regression; BT | `shell-s4` parsed end-to-end | released |
|
||||
| `022` | Identity wrappers/multiple instances preserve source identity; transforms/nesting remain unsupported. | `InpDomainMapping.*`; Domain identity tests; BT | RV exact instance/node identity | released |
|
||||
| `023` | Allowlisted output requests do not affect mandatory results; other model-affecting meanings fail. | `InpDomainMapping.PreservesProcedureLoadAndOutputRequestBoundariesForShells`; `Hdf5ResultsWriter.WritesShellInventoryDespiteRequestsAndOmitsForbiddenPaths`; BT | PE observed warning-only diagnostics | released |
|
||||
| `024` | Domain owns shell semantics and AnalysisModel remains a non-owning active view. | `DomainModel.*`; PH Step 0 and full lifecycle Step 12; BT | N/A | released |
|
||||
| `025` | DofManager solely owns six-DOF numbering, maps, scatter and sparse pattern. | `DofManager.*`; `EssentialConstraints.*`; PH Step 6; BT | N/A | released |
|
||||
| `026` | AnalysisState owns only required linear-static shell solution/recovery/evidence rows. | `AnalysisState.OwnsExactShellRowsInStableElementAndLocationOrder`; `.CommitsFiniteShellGlobalEvidence`; BT | PE required-result audit | released |
|
||||
| `027` | Element buffers and stable COO/fixed reduction are deterministic across thread paths. | `SparseAssembly.ShellSerialTbbReverseAndRepeatedRunsAreByteIdentical`; PH Step 7; BT | N/A | released |
|
||||
| `028` | Stiffness/partition/factorization precedes load/effective RHS/substitution/recovery/commit. | `Mitc4ShellCli.UsesExistingLifecycleAndExactlyOneFactorization`; `.AppliesKfcForNonzeroPrescribedDisplacement`; `.DoesNotWriteAnInvalidRecoveryCandidate`; BT | PE final-state evidence | released |
|
||||
| `029` | Reaction/free equilibrium derives from full residual `K*d-F`. | `ResultRecovery.KeepsFullResidualAndComputesGlobalShellEquilibrium`; BT | PE reaction and equilibrium reconstruction | released |
|
||||
| `030` | S4/S4R use the same numerical path and may differ only in source metadata. | Mapper identity test; `SparseAssembly.S4AndS4rSemanticFixturesAssembleIdenticalStiffness`; HDF5 metadata tests; BT | S4R reference intentionally N/A | released |
|
||||
| `031` | Physical kernel uses three translations plus two tangent rotations; drilling is not physical strain. | `Mitc4ShellKinematics.BuildsRightHandedFramesAndSeparatePhysicalDrillingMaps`; drill/recovery tests; BT | PE no drilling leakage | released |
|
||||
| `032` | Deterministic right-handed frames transform global rotations to tangent/drilling coordinates. | `Mitc4ShellKinematics.BuildsRightHandedFramesAndSeparatePhysicalDrillingMaps`; `Mitc4Geometry.*`; BT | PE symmetry/direction evidence | released |
|
||||
| `033` | Drilling is a symmetric positive numerical stabilization only. | `Mitc4ShellDrilling.*`; `Mitc4ShellKernel.*`; BT | PE physical-energy audit | released |
|
||||
| `034` | `R+`, `k_ref`, `k_d=1e-3*k_ref`, and `I4` use only eight positive physical rotational diagonals. | `Mitc4ShellDrilling.UsesOnlyEightPositivePhysicalRotationDiagonalsAndFixedFactor`; BT | N/A | released |
|
||||
| `035` | Drilling contributes to no physical generalized strain/resultant/stress/output. | `Mitc4ShellDrilling.ExcludesPureDrillFromPhysicalRecoveryAndEnergy`; HDF5 forbidden-path test; BT | PE physical-only recovery/energy | released |
|
||||
| `036` | Empty/nonfinite valid `R+` fails; no coefficient/energy calibration gate or output exists. | `Mitc4ShellDrilling.FailsNonfiniteReferenceAndStabilizesEachPureDrillCoordinate`; BT | Documented limitation/boundary | released |
|
||||
| `037` | S4 and S4R share the approved full `2x2x2` rule; no reduced integration/hourglass selection. | `Mitc4ShellKinematics.UsesOneFixedTwoByTwoByTwoQuadratureOrder`; S4/S4R assembly parity; BT | RV S4-only boundary | released |
|
||||
| `038` | Stabilized element keeps six physical rigid modes, symmetry, energy invariance and positive non-rigid modes. | `Mitc4ShellKernel.*`; `Mitc4ShellPatch.*`; BT | PE rigid/rank/energy evidence | released |
|
||||
| `039` | HDF5 is authoritative and invalid candidates cannot replace a valid final result. | `Hdf5ResultsWriter.InvalidShellInventoryPreservesExistingFinal`; CLI invalid-candidate test; BT | RV/PE read authoritative HDF5 | released |
|
||||
| `040` | Required metadata/model identities, frames, directors, section/material and source/internal types are written. | `Hdf5ResultsWriter.WritesExactShellMetadataAndModelIdentity`; BT | RV HDF5 schema audit | released |
|
||||
| `041` | Every node has global six-component displacement and full-residual reaction rows in stable order. | HDF5 mandatory inventory; `ResultRecovery.*`; BT | RV 49x6 displacement; PE reaction audit | released |
|
||||
| `042` | Four shell locations contain ordered eight-component generalized strain with correct dimensions. | `Mitc4ShellPhysicalRecovery.*`; `ResultRecovery.RecoversShellRowsInStableElementAndGpOrder`; HDF5 tests; BT | PE 144-GP reconstruction | released |
|
||||
| `043` | The same locations contain ordered `N/M/Q` section resultants with correct dimensions. | Physical recovery/result recovery/HDF5 suites; BT | PE 1,152-component resultant reconstruction | released |
|
||||
| `044` | Bottom/middle/top local `[S11,S22,S12]` is emitted; S33/S13/S23 is not. | `ResultRecovery.RecoversDirectBottomMiddleTopShellStress`; HDF5 inventory/forbidden paths; BT | PE stress/location/sign reconstruction | released |
|
||||
| `045` | Rows preserve source element, exact natural/section location, frame and component order without averaging. | AnalysisState, ResultRecovery stable-order and HDF5 schema tests; BT | PE location-specific audit | released |
|
||||
| `046` | Free residual, force/moment balance and deterministic physical shell energy are output without drilling datasets. | `ResultRecovery.*ShellEquilibrium`; `.SumsOnlyPhysicalShellEnergyInSourceOrder`; HDF5 global rows; BT | PE equilibrium and energy checks | released |
|
||||
| `047` | Abaqus output requests neither suppress nor expand mandatory HDF5; CSV remains auxiliary. | Mapper output-request test; `Hdf5ResultsWriter.WritesShellInventoryDespiteRequestsAndOmitsForbiddenPaths`; BT | RV compared HDF5 directly; no FESA CSV | released |
|
||||
| `048` | Nonfinite/incomplete recovery or HDF5 inventory fails without partial success. | `AnalysisState.InvalidShellCandidatesLeavePriorStateUnchanged`; `ResultRecovery.InvalidLaterShellLeavesEntirePriorStateUnchanged`; HDF5 invalid-inventory test; BT | N/A | released |
|
||||
| `049` | Each production behavior has RED/GREEN/VERIFY evidence, related C++ tests, clean MSVC Debug build and no new warning. | PH Steps 0-13 and outputs; BT clean build, zero warnings, `144/144` | N/A | released |
|
||||
| `050` | Frames, Jacobians, symmetry, transform energy, six modes, positivity and repeatability are tested. | Geometry, Kinematics, Kernel, Patch and SparseAssembly suites; BT | PE rigid/rank summary | released |
|
||||
| `051` | Approved normalized `1e-12` and `1e-10` algebraic/equilibrium criteria are applied. | Kernel/frame tests; `ResultRecovery.UsesScaleAwareShellMetricsAndRejectsExcess`; BT | PE verification metrics all below `1e-10` | released |
|
||||
| `052` | Independent membrane, bending, shear and twist patch/sign/component checks pass. | `Mitc4ShellPatch.ReproducesIndependentMembraneBendingShearAndTwistFields`; PhysicalRecovery tests; BT | PE recovery sign checks | released |
|
||||
| `053` | Formulation invariants/patches and declared S4 displacement reference case pass; expanded portfolio is not required. | Kernel/Patch/PhysicalRecovery suites; `Mitc4S4Reference.*`; BT | RV blocking U `147/147`; PE coverage audit | released |
|
||||
| `054` | Exact geometry acceptance/rejection tests pass without NR-O03/NR-O04 calibration. | `Mitc4Geometry.*`; BT | N/A | released |
|
||||
| `055` | Additional curved/locking/convergence benchmarks remain optional and nonblocking. | Implementation-plan scope audit; BT/PE coverage inventory | PE records limitation and approved coverage | released |
|
||||
| `056` | Exact drilling formula, symmetry/positivity/rank/determinism and recovery exclusion are verified. | `Mitc4ShellDrilling.*`; Kernel/Sparse/Recovery suites; BT | PE drilling separation evidence | released |
|
||||
| `057` | Physics verifies equilibrium, direction, symmetry, energy, signs and resultant consistency. | ResultRecovery/CLI suites; BT | PE all documented checks pass | released |
|
||||
| `058` | Every matched U row uses fixed absolute `1.0e-5` and blocks on exceedance. | `Mitc4ReferenceComparison.AppliesFixedAbsoluteToleranceWithoutScaleClampOrRowDenominator`; `Mitc4S4Reference.*`; BT | RV U `147/147` pass | released |
|
||||
| `059` | Reference scale, row denominator, component magnitude and zero clamp never alter MITC4 tolerance. | Fixed-tolerance comparator test; BT | RV all 294 tolerances exactly `1.0e-5` | released |
|
||||
| `060` | U tolerance is in user-consistent length units and independent of B33 policy. | Comparator contract test and scope audit; BT | RV reports independent fixed policy | released |
|
||||
| `061` | UR uses fixed absolute `1.0e-5`; exceedance warns deterministically and never blocks. | `Mitc4ReferenceComparison.RotationExceedanceWarnsWithoutBlockingTranslationVerdict`; BT | RV UR `147/147`, zero warnings | released |
|
||||
| `062` | UR tolerance is dimensionless and no extra UR/drilling threshold is required. | Comparator/report tests; BT | RV fixed-tolerance metrics | released |
|
||||
| `063` | Missing/extra/duplicate/nonfinite/schema/identity mismatch fails before tolerance. | `Mitc4ReferenceComparison.RejectsInvalidInventoryBeforeNumericComparison`; BT | RV all invalid counts zero | released |
|
||||
| `064` | Report contains every U/UR decision, maximum, normalized, RMS, vector and worst-row evidence. | `Mitc4ReferenceComparison.ReportsMetricsVectorsWorstRowAndJsonDeterministically`; BT | RV complete quantity/component/worst-row tables | released |
|
||||
| `065` | Exact S4 input and displacement CSV paths are used without mutation. | `Mitc4S4Reference.*`; comparator required-file test; BT hash audit | `shell-s4`; immutable hashes match | released |
|
||||
| `066` | S4R artifacts are not required/consumed; parser/common-kernel/assembly/HDF5 tests cover S4R. | Mapper identity, S4/S4R assembly parity, HDF5 source-type tests; BT | RV confirms `reference/shellR/` not consumed | released |
|
||||
| `067` | Only declared input/CSV, FESA HDF5, mapping and tolerance/precheck rules gate readiness. | `Mitc4ReferenceComparison.RequiresOnlyDeclaredInputCsvAndHdf5`; BT | RV no administrative artifact gate | released |
|
||||
| `068` | Reference rows are unique, finite and deterministically source-mapped without internal-equivalence inference. | Comparator mapping and invalid-inventory tests; BT | RV exact `294/294` key set | released |
|
||||
| `069` | Sole Abaqus case is full-integration S4; S4R coverage remains non-reference. | Common quadrature/S4R mapping tests and `Mitc4S4Reference.*`; BT | RV one declared case, S4R excluded | released |
|
||||
| `070` | Authoritative FESA HDF5 rows are compared directly by model/step/frame/source/component. | Comparator mapping/E2E tests; BT | RV direct HDF5 projection, no FESA CSV | released |
|
||||
| `071` | Reaction/stress/strain/resultants do not become undeclared equality gates. | Comparator only projects U/UR; BT | RV and PE keep optional CSVs out of pass/fail | released |
|
||||
| `072` | No Abaqus/reference-solver execution or reference artifact mutation occurs. | PH/BT Git and hash audits | RV and PE no-change assertions; immutable hashes match | released |
|
||||
|
||||
No requirement is deferred or blocked. Out-of-scope behavior is documented as a limitation rather than silently accepted.
|
||||
|
||||
## Validation Evidence
|
||||
|
||||
| command or report | expected | observed | verdict |
|
||||
| --- | --- | --- | --- |
|
||||
| config-resolved VS18/MSVC x64 Debug fresh configure and clean build | exit `0`, no new warning | exit `0`; warning/error scan `0/0` | pass |
|
||||
| focused model/kernel/assembly/recovery CTest | pass | `87/87` | pass |
|
||||
| focused linear-static lifecycle CTest | pass | `10/10` | pass |
|
||||
| focused MITC4 reference CTest | pass | `8/8` | pass |
|
||||
| CTest discovery and full regression | nonzero inventory and all pass | `144` discovered; `144/144` pass; current read-only discovery includes 57 test names containing `Mitc4` or `Shell` | pass |
|
||||
| Harness Python verification | pass because Harness runner changed on the feature branch | `7/7` pass | pass |
|
||||
| final release-stage confirmation | current HEAD build, full CTest and Harness self-test pass | fresh `cmake --build` exit `0`; CTest `144/144`; Harness pytest `7/7` | pass |
|
||||
| Harness implementation ledger | every Step completed successfully | Steps `0-13` completed; `14/14` output `exitCode=0` | pass |
|
||||
| reference verification | `pass-for-physics-evaluation` | exact 294 rows; U `147/147`; invalid rows/warnings `0` | pass |
|
||||
| physics evaluation | `pass-for-release-agent` | all equilibrium/direction/symmetry/recovery/energy checks pass | pass |
|
||||
| immutable reference audit | exact expected hashes, no Git reference diff/status | both hashes match; zero changed reference paths | pass |
|
||||
|
||||
The Release Agent did not run Abaqus. It independently read the complete upstream evidence chain, enumerated current CTest discovery read-only, checked all Harness output exit codes, verified source HEAD/branch/status, and recomputed the declared artifact/report hashes. The primary audit then performed a fresh current-HEAD incremental full build, full CTest run and Harness self-test as the final completion check; all passed as recorded above.
|
||||
|
||||
## Release Checklist
|
||||
|
||||
- [x] One `feature_id` across all required gate documents.
|
||||
- [x] Requirements, research, formulation, numerical review, I/O, reference-model and implementation-plan gates are approved/passing for their intended downstream phase.
|
||||
- [x] Harness implementation is complete at the audited source HEAD with 14 successful Step outputs.
|
||||
- [x] Independent Build/Test status is `pass-for-reference-verification`.
|
||||
- [x] Reference Verification status is `pass-for-physics-evaluation`.
|
||||
- [x] Physics Evaluation status is `pass-for-release-agent`.
|
||||
- [x] All `must` requirements `001-072` trace to acceptance criteria, test/phase evidence, reference/physics evidence where applicable, and a released disposition.
|
||||
- [x] Sole required comparison files exist, match approved hashes, and were not modified.
|
||||
- [x] Fixed MITC4 tolerance and U-blocking/UR-warning-only policy are unchanged.
|
||||
- [x] No unresolved build, test, reference, physics, schema, identity, nonfinite or environment failure remains.
|
||||
- [x] Known limitations, unsupported Abaqus meanings and accepted risks are documented below and in the Release Notes Draft.
|
||||
- [x] Release Agent changed only this report and performed no external release action.
|
||||
|
||||
## Known Limitations
|
||||
|
||||
| limitation | category | user impact | disposition |
|
||||
| --- | --- | --- | --- |
|
||||
| One small-displacement/small-rotation linear-static step only | analysis | Nonlinear, buckling, modal, dynamic, contact and thermal models are rejected/not executed. | documented |
|
||||
| S4 and S4R are source labels for one full-integration FESA-MITC4 formulation | input/numerical | No Abaqus S4/S4R internal algorithm, reduced-integration or hourglass equivalence is claimed. | documented |
|
||||
| External acceptance uses one flat symmetric fully clamped S4 plate | verification | General curved/distorted/thin-thick convergence is not established by the source-solver comparison. | accepted risk; optional future evidence |
|
||||
| Original MITC4 membrane field is unmodified | numerical | Distorted curved meshes may exhibit membrane locking; MITC4+ performance is not claimed. | documented |
|
||||
| S4R has no blocking Abaqus reference comparison | verification | S4R support is proven by parser/common-kernel/deterministic-assembly/HDF5 metadata tests only. | approved boundary |
|
||||
| Homogeneous isotropic centered single layer with constant thickness | material/section | Composite, orthotropic, offset and variable-thickness models are unsupported. | documented |
|
||||
| Smooth geometry-derived director field only | geometry | Explicit normals and shared-node folds/hinges/intersections are unsupported; folds require duplicated nodes. | documented |
|
||||
| Nodal loads/constraints only | load | Pressure, gravity, DLOAD, body/edge/follower load are unsupported. Director-parallel moments fail as `unsupported-drilling-load`. | documented |
|
||||
| Fixed numerical drilling stabilization | numerical | It is not a physical strain/load/result channel; no calibration sweep or drilling-energy ratio is supplied. | accepted fixed policy |
|
||||
| In-plane stress only at bottom/middle/top | output | `S33` is a plane-stress assumption; `S13/S23` point stress and nodal averaging are not emitted. | documented |
|
||||
| Raw HDF5 container bytes are not a declared deterministic identity | output/evidence | Regeneration may change the raw file hash; ordered projected rows and the JSON comparison ledger are deterministic evidence. | documented, nonblocking |
|
||||
| Target-wide CTest label remains the legacy beam label | test infrastructure | MITC4 selection uses the approved exact suite regexes instead of a dedicated label. | documented, nonblocking |
|
||||
|
||||
## Release Notes Draft
|
||||
|
||||
### Feature Summary
|
||||
|
||||
- Adds end-to-end single-step linear-static analysis for four-node shell inputs labeled `S4` or `S4R`, both mapped to the independent full-integration `FESA-MITC4` formulation.
|
||||
- Adds deterministic geometry-derived nodal directors, six global nodal DOFs, MITC4 transverse-shear tying, fixed nonphysical drilling stabilization, deterministic sparse assembly, full-residual reactions, physical shell recovery and failure-atomic HDF5 output.
|
||||
- Adds mandatory HDF5 nodal displacement/reaction, shell local frames, generalized strain/resultant, bottom/middle/top in-plane stress, physical energy, equilibrium and verification metrics.
|
||||
|
||||
### Verification Scope
|
||||
|
||||
- Clean Visual Studio 18 2026/MSVC x64 Debug build and full `144/144` CTest regression passed with zero compiler/linker warnings.
|
||||
- All 14 Harness implementation Steps completed with recorded RED/GREEN/VERIFY evidence and successful output exit codes.
|
||||
- The sole declared S4 case matched all `147` blocking translational rows within fixed absolute `1.0e-5`; all `147` rotation rows were within the warning threshold and produced no warnings.
|
||||
- Physics checks passed for global force/moment equilibrium, full-residual reactions, displacement direction, double symmetry, generalized resultant/stress consistency, free residual, finite results and positive physical energy.
|
||||
|
||||
### Main Limitations
|
||||
|
||||
- The released scope is linear static, small deformation, homogeneous isotropic single-layer MITC4 with nodal loads and constraints only.
|
||||
- Abaqus compatibility and Abaqus S4/S4R formulation equivalence are not claimed. S4R uses the same FESA full-integration kernel and is not an Abaqus reference gate.
|
||||
- Broader curved/distorted/thin-thick convergence, original-MITC4 membrane-locking characterization, nonlinear execution, distributed loads, composites, physical drilling behavior and expanded stress output remain outside this release.
|
||||
|
||||
### Artifacts
|
||||
|
||||
- Release report: `docs/releases/linear-static-mitc4-shell-release.md`
|
||||
- Build/Test report: `docs/build-test-reports/linear-static-mitc4-shell-build-test.md`
|
||||
- Reference Verification report: `docs/reference-verifications/linear-static-mitc4-shell-reference-verification.md`
|
||||
- Physics Evaluation report: `docs/physics-evaluations/linear-static-mitc4-shell-physics-evaluation.md`
|
||||
- Declared reference pair: `reference/shell/shell.inp`, `reference/shell/shell displacements.csv`
|
||||
- Build-local deterministic ledger: `.harness/build/reference/mitc4-shell-s4-comparison/comparison.json`
|
||||
|
||||
## Release Verdict
|
||||
|
||||
- verdict: `ready-for-release`
|
||||
- reason: all required upstream gates are present and passing; the final three mandatory handoff statuses are exactly `pass-for-reference-verification`, `pass-for-physics-evaluation`, and `pass-for-release-agent`; every `must` requirement `001-072` has a released disposition; required S4 artifacts and row mappings are present and valid; no unresolved defect, missing comparison file, tolerance conflict, nonfinite result, identity gap, or physics blocker remains.
|
||||
- approval_scope: internal feature release closure only
|
||||
- external_release_action: `none`
|
||||
|
||||
## Handoff Recommendation
|
||||
|
||||
| target_agent | reason | required_input |
|
||||
| --- | --- | --- |
|
||||
| Coordinator Agent | Close the feature workflow with `ready-for-release`. | This report, source HEAD `820ba30c717b3d0e113775608e20dfd5fbc05d53`, and the three passing downstream gate reports. |
|
||||
| Correction Agent | N/A; no implementation-owned release blocker remains. | N/A |
|
||||
| Reference Verification Agent | N/A; the required S4 comparison is complete and passing. | N/A |
|
||||
| Physics Evaluation Agent | N/A; physics evaluation is complete and passing. | N/A |
|
||||
|
||||
## No-Change Assertion
|
||||
|
||||
- source_files_modified: `false`
|
||||
- test_files_modified: `false`
|
||||
- cmake_files_modified: `false`
|
||||
- requirements_modified: `false`
|
||||
- research_modified: `false`
|
||||
- formulation_modified: `false`
|
||||
- numerical_review_modified: `false`
|
||||
- io_contract_modified: `false`
|
||||
- reference_model_contract_modified: `false`
|
||||
- implementation_plan_or_phase_files_modified: `false`
|
||||
- build_test_report_modified: `false`
|
||||
- reference_verification_report_modified: `false`
|
||||
- physics_evaluation_report_modified: `false`
|
||||
- reference_artifacts_modified: `false`
|
||||
- tolerance_policies_modified: `false`
|
||||
- Abaqus_or_other_reference_solver_executed: `false`
|
||||
- publish_deploy_package_tag_commit_performed: `false`
|
||||
- owned_report_created: `true`
|
||||
- pre_existing_untracked_reports_preserved: `true`
|
||||
- notes: before this report was created, the worktree had no tracked/staged diff and contained only the three upstream gate reports as untracked files. This audit adds only `docs/releases/linear-static-mitc4-shell-release.md`; generated build-local evidence remains ignored under `.harness/build/`.
|
||||
|
||||
## Open Issues
|
||||
|
||||
- blocking: `none`
|
||||
- deferred requirements: `none`
|
||||
- unresolved defects: `none`
|
||||
- missing required comparison files or mappings: `none`
|
||||
- nonblocking administrative note: the Build/Test, Reference Verification, Physics Evaluation and this Release report are untracked workspace reports pending whatever repository-integration action the user or Coordinator Agent separately authorizes. Their untracked state does not invalidate their content or the current internal readiness verdict.
|
||||
- nonblocking evidence note: raw `results.h5` hashes can differ across valid regenerations; no byte-identical HDF5 container claim is made.
|
||||
Reference in New Issue
Block a user