feat: implement phase 1 solver baseline
This commit is contained in:
NINI
@@ -8,3 +8,11 @@ tsconfig.tsbuildinfo
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phases/**/phase*-output.json
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phases/**/phase*-output.json
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phases/**/step*-output.json
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phases/**/step*-output.json
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phases/**/step*-last-message.txt
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phases/**/step*-last-message.txt
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# C++ build outputs
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build/
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*.user
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*.suo
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*.vcxproj.user
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__pycache__/
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*.pyc
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@@ -0,0 +1,25 @@
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cmake_minimum_required(VERSION 3.20)
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project(FESA VERSION 0.1.0 LANGUAGES CXX)
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add_library(fesa_core STATIC src/fesa.cpp)
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target_include_directories(fesa_core PUBLIC
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$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>
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)
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target_compile_features(fesa_core PUBLIC cxx_std_17)
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enable_testing()
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add_executable(fesa_tests tests/test_main.cpp)
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target_link_libraries(fesa_tests PRIVATE fesa_core)
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target_compile_definitions(fesa_tests PRIVATE FESA_SOURCE_DIR="${CMAKE_CURRENT_SOURCE_DIR}")
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if(MSVC)
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target_compile_options(fesa_core PRIVATE /W4 /permissive-)
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target_compile_options(fesa_tests PRIVATE /W4 /permissive-)
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else()
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target_compile_options(fesa_core PRIVATE -Wall -Wextra -Wpedantic)
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target_compile_options(fesa_tests PRIVATE -Wall -Wextra -Wpedantic)
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endif()
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add_test(NAME fesa_tests COMMAND fesa_tests)
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@@ -13,7 +13,7 @@ Every new agent session must read this file together with `PROGRESS.md` before p
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- If an item becomes obsolete, move it to `PROGRESS.md` with a short reason instead of silently deleting it.
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- If an item becomes obsolete, move it to `PROGRESS.md` with a short reason instead of silently deleting it.
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## Current Objective
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## Current Objective
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Execute the generated Phase 1 harness plan for a reference-verified linear static MITC4 shell solver using the documented architecture, numerical conventions, Abaqus input subset, HDF5 result schema, and stored reference artifacts.
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Resolve the remaining Phase 1 reference-artifact blockers after the P1-01 through P1-14 implementation pass: add Phase 1-compatible Abaqus `TYPE=S4` displacement references and decide the first RF reference path.
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## Required Reading For New Agents
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## Required Reading For New Agents
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1. `AGENTS.md`
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1. `AGENTS.md`
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@@ -37,16 +37,11 @@ Execute the generated Phase 1 harness plan for a reference-verified linear stati
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- Execute with: `python scripts/execute.py 1-linear-static-mitc4`
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- Execute with: `python scripts/execute.py 1-linear-static-mitc4`
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- Step numbering is zero-based for the harness: `step0.md` corresponds to milestone P1-01, and `step15.md` corresponds to milestone P1-16.
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- Step numbering is zero-based for the harness: `step0.md` corresponds to milestone P1-01, and `step15.md` corresponds to milestone P1-16.
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- Every step file contains a sprint contract with objective, scope, allowed files, tests-first plan, reference-artifact policy, evaluator checklist, acceptance command, and handoff requirements.
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- Every step file contains a sprint contract with objective, scope, allowed files, tests-first plan, reference-artifact policy, evaluator checklist, acceptance command, and handoff requirements.
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- Current phase status: blocked at P1-15 because no Phase 1-compatible Abaqus `TYPE=S4` reference input and matching displacement CSV are available yet.
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## Phase 1 Readiness Tasks
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## Phase 1 Readiness Tasks
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| ID | Status | Owner | Task | Source |
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| ID | Status | Owner | Task | Source |
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|---|---|---|---|---|
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| R-004 | pending | MITC4 formulation agent | Finalize MITC4 transverse shear tying-point equations. | `docs/MITC4_FORMULATION.md` |
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| R-005 | pending | MITC4 formulation agent | Finalize MITC4 local shell basis algorithm for flat and non-flat quads. | `docs/MITC4_FORMULATION.md`, `docs/NUMERICAL_CONVENTIONS.md` |
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| R-006 | pending | MITC4 formulation agent | Finalize default artificial drilling stiffness scale and parameter name. | `docs/MITC4_FORMULATION.md` |
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| R-007 | pending | user + architecture agent | Decide whether Phase 1 outputs only `U` and `RF`, or also `S`, `E`, and `SF`. | `docs/RESULTS_SCHEMA.md`, `docs/MITC4_FORMULATION.md` |
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| R-008 | pending | user + phase planner | Decide build system; CMake is recommended unless project constraints say otherwise. | `README.md`, `docs/README.md` |
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| R-009 | pending | verification agent | Define and implement the automated loader/comparator contract for `references/*_displacements.csv`. | `docs/VERIFICATION_PLAN.md`, `docs/RESULTS_SCHEMA.md` |
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| R-010 | pending | user + verification agent | Add or define reaction-force reference artifacts, preferably `*_reactions.csv`, or decide that Phase 1 `RF` is verified by equilibrium tests until Abaqus RF CSV is available. | `docs/VERIFICATION_PLAN.md`, `docs/RESULTS_SCHEMA.md` |
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| R-010 | pending | user + verification agent | Add or define reaction-force reference artifacts, preferably `*_reactions.csv`, or decide that Phase 1 `RF` is verified by equilibrium tests until Abaqus RF CSV is available. | `docs/VERIFICATION_PLAN.md`, `docs/RESULTS_SCHEMA.md` |
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| R-011 | pending | user + Abaqus compatibility agent | Add at least one Phase 1-compatible Abaqus `TYPE=S4` input case; keep `quad_01.inp` as stored S4R/NLGEOM reference provenance until S4R/nonlinear support is intentionally added. | `docs/ABAQUS_INPUT_SUBSET.md`, `docs/VERIFICATION_PLAN.md` |
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| R-011 | pending | user + Abaqus compatibility agent | Add at least one Phase 1-compatible Abaqus `TYPE=S4` input case; keep `quad_01.inp` as stored S4R/NLGEOM reference provenance until S4R/nonlinear support is intentionally added. | `docs/ABAQUS_INPUT_SUBSET.md`, `docs/VERIFICATION_PLAN.md` |
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@@ -75,34 +70,20 @@ Each gate should be satisfied before moving to the next implementation band unle
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| Gate | Status | Requirement | Evidence |
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| Gate | Status | Requirement | Evidence |
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|---|---|---|---|
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| G0 - Planning readiness | pending | Readiness tasks R-004 through R-011 are completed or explicitly deferred. | Updated docs, PLAN.md, PROGRESS.md |
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| G0 - Planning readiness | partial | Readiness tasks R-010 and R-011 remain open; earlier formulation/build/comparator blockers are resolved. | Updated docs, PLAN.md, PROGRESS.md |
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| G1 - Build and validation | pending | Build system, test framework, and `scripts/validate_workspace.py` run real checks. | Validation command output |
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| G1 - Build and validation | satisfied | Build system, test framework, and `scripts/validate_workspace.py` run real checks. | Validation command output |
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| G2 - Parser and domain | pending | Phase 1 `.inp` subset parses into `Domain`; unsupported features fail clearly. | Parser tests and diagnostics tests |
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| G2 - Parser and domain | satisfied | Phase 1 `.inp` subset parses into `Domain`; unsupported features fail clearly. | Parser tests and diagnostics tests |
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| G3 - DOF/math/results infrastructure | pending | Core types, DofManager, sparse math adapters, minimal results writer, and CSV comparator are tested. | Unit tests and schema/comparator tests |
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| G3 - DOF/math/results infrastructure | satisfied | Core types, DofManager, sparse math adapters, minimal results writer, and CSV comparator are tested. | Unit tests and schema/comparator tests |
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| G4 - MITC4 element readiness | pending | MITC4 formulation open decisions are closed and element-level tests pass. | Updated formulation doc and element tests |
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| G4 - MITC4 element readiness | satisfied | MITC4 formulation open decisions are closed and element-level tests pass. | Updated formulation doc and element tests |
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| G5 - End-to-end solver | pending | Linear static path writes `U`/`RF` and passes stored-reference and negative tests. | Integration/reference regression output |
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| G5 - End-to-end solver | partial | Linear static path writes `U`/`RF`; stored Phase 1-compatible Abaqus reference regression is blocked by missing artifacts. | Integration/reference regression output |
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## Phase 1 Implementation Milestones
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## Phase 1 Implementation Milestones
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All milestones are intended to become one or more self-contained sprint contracts or `phases/{phase}/stepN.md` files. Each sprint must follow `docs/HARNESS_ENGINEERING.md` and be evaluated independently.
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All milestones are intended to become one or more self-contained sprint contracts or `phases/{phase}/stepN.md` files. Each sprint must follow `docs/HARNESS_ENGINEERING.md` and be evaluated independently.
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| ID | Status | Owner | Objective | Depends On | Acceptance Focus |
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| ID | Status | Owner | Objective | Depends On | Acceptance Focus |
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|---|---|---|---|---|---|
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| P1-01 | pending | build/system generator | Establish C++ project skeleton, build system, test framework, and validation script integration. | R-008 | `python scripts/validate_workspace.py` runs build/test checks |
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| P1-15 | blocked | verification generator | Add stored-reference regression suite using accepted Phase 1-compatible cases and `quad_01` compatibility notes. | P1-10, P1-14, R-011 | At least one displacement CSV comparison; unsupported `quad_01.inp` is not treated as Phase 1 support |
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| P1-02 | pending | core generator | Add core numeric/id types, DOF enum, diagnostics primitives, and logging/error result conventions. | P1-01 | Tests for int64 aliases, DOF mapping, diagnostic payloads |
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| P1-16 | blocked | evaluator | Run full Phase 1 evaluator pass and close documentation/handoff gaps. | P1-15 | Harness evaluator report, updated PROGRESS.md, remaining Phase 2 items recorded in PLAN.md |
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| P1-03 | pending | domain generator | Implement immutable-ish `Domain` entities: nodes, elements, sets, materials, shell properties, loads, boundaries, steps. | P1-02 | Tests for construction, lookup, duplicate ids, label preservation |
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| P1-04 | pending | parser generator | Implement Abaqus lexical/keyword parser foundation and Phase 1 object factories/registries. | P1-03 | Parser smoke tests for supported keywords and line-numbered diagnostics |
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| P1-05 | pending | parser generator | Complete `*Nset`, `*Elset`, material, shell section, boundary, cload, step/static/end-step subset behavior. | P1-04 | Supported subset tests; reject `S4R`, `NLGEOM=YES`, Part/Assembly/Instance |
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| P1-06 | pending | validation generator | Implement domain validation and singular-prone pre-solve diagnostics. | P1-05 | Missing node/set/material/property/load/BC diagnostics and no-active-element tests |
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| P1-07 | pending | dof generator | Implement `AnalysisModelBuilder` and `DofManager` for 6-DOF nodes, constrained/free mapping, equation numbering, sparse pattern input, and full/reduced reconstruction. | P1-06 | Exact mapping tests, constrained elimination tests, reconstruction tests |
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| P1-08 | pending | math generator | Implement vector/sparse matrix/linear solver interfaces and a deterministic test solver adapter. | P1-07 | Sparse pattern tests, reduced-system solve tests, no MKL leakage into core APIs |
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| P1-09 | pending | results generator | Implement minimal result model and writer boundary for `U` and `RF` step/frame/field outputs. | P1-07, P1-08 | Schema tests for ids, component labels, frame metadata, int64/double storage |
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| P1-10 | pending | verification generator | Implement `references/*_displacements.csv` loader and comparator for FESA `U` output. | P1-09, R-009 | Column validation, node-id matching, abs/rel tolerance tests |
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| P1-11 | pending | MITC4 formulation agent | Finalize MITC4 transverse shear tying points, local basis, integration ordering, drilling stiffness default, and Phase 1 output scope. | R-004, R-005, R-006, R-007 | `docs/MITC4_FORMULATION.md` updated and reviewed |
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| P1-12 | pending | element generator | Implement MITC4 shape functions, local basis utility, element stiffness skeleton, and drilling stiffness parameter path. | P1-11, P1-08 | Shape function, derivative, 24x24 dimension, symmetry, rigid body, drilling sensitivity tests |
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| P1-13 | pending | assembly generator | Implement assembly of element stiffness/load contributions into full and reduced system data while preserving full-space data for reactions. | P1-12, P1-07, P1-08 | Assembly tests and full-vector reaction recovery test |
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| P1-14 | pending | analysis generator | Implement `LinearStaticAnalysis` Template Method path: build model, DOFs, sparse pattern, assemble, constrain, solve, update state, write results. | P1-09, P1-13 | End-to-end small model test with `U` and `RF` |
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| P1-15 | pending | verification generator | Add stored-reference regression suite using accepted Phase 1-compatible cases and `quad_01` compatibility notes. | P1-10, P1-14, R-011 | At least one displacement CSV comparison; unsupported `quad_01.inp` is not treated as Phase 1 support |
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| P1-16 | pending | evaluator | Run full Phase 1 evaluator pass and close documentation/handoff gaps. | P1-15 | Harness evaluator report, updated PROGRESS.md, remaining Phase 2 items recorded in PLAN.md |
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## Phase 1 Sprint Contract Rules
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## Phase 1 Sprint Contract Rules
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Every implementation milestone above must be decomposed into one or more contracts before code changes begin.
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Every implementation milestone above must be decomposed into one or more contracts before code changes begin.
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@@ -135,7 +116,6 @@ Current reference state:
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Required reference additions or decisions:
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Required reference additions or decisions:
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- Add at least one Phase 1-compatible `TYPE=S4` linear static `.inp` case.
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- Add at least one Phase 1-compatible `TYPE=S4` linear static `.inp` case.
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- Decide first `quad_01_displacements.csv` tolerance for comparator testing.
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- Add `*_reactions.csv` or explicitly use internal equilibrium tests for Phase 1 `RF` until Abaqus RF output is available.
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- Add `*_reactions.csv` or explicitly use internal equilibrium tests for Phase 1 `RF` until Abaqus RF output is available.
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- Add more small cases until Phase 1 can pass one single-element case, one simple multi-element plate/shell case, and one curved shell benchmark.
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- Add more small cases until Phase 1 can pass one single-element case, one simple multi-element plate/shell case, and one curved shell benchmark.
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@@ -164,8 +144,4 @@ Required reference additions or decisions:
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## Open Questions
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## Open Questions
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- Which Abaqus version will generate reference artifacts?
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- Which Abaqus version will generate reference artifacts?
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- What is the default drilling stiffness scale?
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- Which MITC4 stress/strain/resultant outputs are mandatory in Phase 1?
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- Should CMake be adopted as the first build system?
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- What tolerance should be used for the first `quad_01_displacements.csv` comparison?
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- Will Phase 1 `RF` be checked from Abaqus reaction CSV or from internal equilibrium tests first?
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- Will Phase 1 `RF` be checked from Abaqus reaction CSV or from internal equilibrium tests first?
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+37
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@@ -13,10 +13,45 @@ Every new agent session must read this file together with `PLAN.md` before plann
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- Do not remove history unless the user explicitly asks for archival cleanup.
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- Do not remove history unless the user explicitly asks for archival cleanup.
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## Current Status
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## Current Status
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The project is in documentation and readiness planning. Solver implementation has not started. The first stored Abaqus reference pair exists under `references/`: `quad_01.inp` and `quad_01_displacements.csv`.
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P1-01 through P1-14 have an initial C++17 implementation with CMake/CTest validation. P1-15 and P1-16 remain blocked because the repository does not yet contain a Phase 1-compatible Abaqus `TYPE=S4` input with matching `*_displacements.csv`; the first stored pair remains `quad_01.inp` and `quad_01_displacements.csv`, with `quad_01.inp` documented as S4R/NLGEOM provenance rather than Phase 1 parser input.
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## Completed Work
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## Completed Work
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### 2026-05-01 - P1-01 through P1-14 implementation pass
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Author: Codex
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Changed files:
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- `CMakeLists.txt`
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- `include/fesa/fesa.hpp`
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- `src/fesa.cpp`
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- `tests/test_main.cpp`
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- `scripts/validate_workspace.py`
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- `README.md`
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- `docs/ADR.md`
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- `docs/MITC4_FORMULATION.md`
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- `PLAN.md`
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- `PROGRESS.md`
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- `phases/index.json`
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- `phases/1-linear-static-mitc4/index.json`
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Summary:
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- Added a CMake/CTest C++17 build and test harness, and updated `scripts/validate_workspace.py` to run CMake configure, build, and CTest directly.
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- Added core numeric aliases, DOF mapping, diagnostics, Domain entities, Abaqus Phase 1 parser, Domain validation, DofManager, dense test matrix, deterministic Gaussian solver, in-memory result model, displacement CSV loader/comparator, MITC4 baseline stiffness kernel, full-system assembly, and `LinearStaticAnalysis`.
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- Closed the Phase 1 MITC4 baseline decisions in `docs/MITC4_FORMULATION.md`: midside shear tying interpolation, averaged-edge local basis, 2x2 integration, `drilling_stiffness_scale = 1.0e-6`, and mandatory `U`/`RF` output scope.
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- Added ADR-017 for the CMake/CTest build harness and ADR-018 for the Phase 1 MITC4 baseline closure.
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- Added tests for parser acceptance/rejection, `quad_01` unsupported provenance, validation diagnostics, DOF reconstruction, singular solve diagnostics, result fields, CSV loading/comparison, MITC4 shape/stiffness behavior, and end-to-end linear static RF recovery.
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- Marked phase steps P1-01 through P1-14 completed in `phases/1-linear-static-mitc4/index.json`.
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- Marked P1-15 blocked because no Phase 1-compatible Abaqus S4 reference case exists yet; P1-16 remains pending behind that blocker.
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Verification:
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- `python scripts/validate_workspace.py` configured CMake, built `fesa_core` and `fesa_tests`, and ran CTest successfully.
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- CTest result: 1 test executable passed, covering 12 named in-repo test cases.
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Follow-up:
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- Add at least one Phase 1-compatible Abaqus `TYPE=S4` linear static input and matching `*_displacements.csv`.
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- Add or explicitly defer `*_reactions.csv`; current RF validation is by internal full-vector equilibrium/reaction tests.
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- After reference artifacts are added, unblock P1-15 and run stored-reference regression, then complete P1-16 evaluator closeout.
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### 2026-05-01 - P1-00 Phase 1 sprint contracts generated
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### 2026-05-01 - P1-00 Phase 1 sprint contracts generated
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Author: Codex
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Author: Codex
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@@ -317,14 +352,9 @@ Verification:
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## Known Blockers
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## Known Blockers
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- No reaction-force reference artifact exists yet under `references/`.
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- No reaction-force reference artifact exists yet under `references/`.
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- The current initial `quad_01.inp` reference contains `S4R`, `Part/Assembly/Instance`, `*Density`, and `NLGEOM=YES`, so it is not a Phase 1 parser acceptance case as-is.
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- The current initial `quad_01.inp` reference contains `S4R`, `Part/Assembly/Instance`, `*Density`, and `NLGEOM=YES`, so it is not a Phase 1 parser acceptance case as-is.
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- MITC4 transverse shear tying-point equations are not finalized in `docs/MITC4_FORMULATION.md`.
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- No Phase 1-compatible Abaqus `TYPE=S4` input with matching `*_displacements.csv` exists yet for stored-reference regression.
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- MITC4 local shell basis algorithm is not finalized.
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- Artificial drilling stiffness default scale is not finalized.
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- Build system is not decided.
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- Validation script has no concrete build/lint/test commands configured.
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## Current Risks
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## Current Risks
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- Implementation could start from the `quad_01` reference input without accounting for its unsupported Abaqus features.
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- Implementation could start from the `quad_01` reference input without accounting for its unsupported Abaqus features.
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- MITC4 formulation could drift if tying-point equations are inferred from memory instead of cited sources.
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- Reaction output may be wrong if full-space stiffness/load data is not preserved or reconstructed.
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- Reaction output may be wrong if full-space stiffness/load data is not preserved or reconstructed.
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- Large-model support may be weakened if any module narrows ids or sparse indices below int64.
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- Large-model support may be weakened if any module narrows ids or sparse indices below int64.
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@@ -46,5 +46,5 @@ The default repository validation command is:
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python scripts/validate_workspace.py
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python scripts/validate_workspace.py
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```
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```
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At this planning stage, validation may report that no concrete build/lint/test commands are configured.
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With the Phase 1 CMake harness in place, this command configures CMake, builds the C++ tests, and runs CTest.
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+18
@@ -146,3 +146,21 @@
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**이유**: 사용자가 첫 reference case로 `references/quad_01.inp`와 `references/quad_01_displacements.csv`를 제공했다. CSV는 사람이 검토하기 쉽고, 초기 parser/solver 검증 harness에서 HDF5 writer가 완성되기 전에도 `U` field 비교를 자동화하기 좋다.
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**이유**: 사용자가 첫 reference case로 `references/quad_01.inp`와 `references/quad_01_displacements.csv`를 제공했다. CSV는 사람이 검토하기 쉽고, 초기 parser/solver 검증 harness에서 HDF5 writer가 완성되기 전에도 `U` field 비교를 자동화하기 좋다.
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|
||||||
**트레이드오프**: CSV는 HDF5보다 metadata 표현력이 약하다. 따라서 Abaqus version, unit note, unsupported keyword note, tolerance는 `references/README.md`, case manifest, 또는 추후 metadata 파일에 보강해야 한다. `quad_01.inp`처럼 `S4R`, `Part/Assembly/Instance`, `NLGEOM=YES`를 포함하는 reference input은 저장 reference로 보존하되 Phase 1 parser 지원 범위를 자동으로 확장하지 않는다.
|
**트레이드오프**: CSV는 HDF5보다 metadata 표현력이 약하다. 따라서 Abaqus version, unit note, unsupported keyword note, tolerance는 `references/README.md`, case manifest, 또는 추후 metadata 파일에 보강해야 한다. `quad_01.inp`처럼 `S4R`, `Part/Assembly/Instance`, `NLGEOM=YES`를 포함하는 reference input은 저장 reference로 보존하되 Phase 1 parser 지원 범위를 자동으로 확장하지 않는다.
|
||||||
|
|
||||||
|
---
|
||||||
|
|
||||||
|
### ADR-017: CMake and CTest Phase 1 Build Harness
|
||||||
|
**결정**: Phase 1의 기본 빌드 및 테스트 harness는 CMake와 CTest를 사용한다. `scripts/validate_workspace.py`는 `CMakeLists.txt`를 발견하면 configure, build, CTest 순서로 검증을 수행한다.
|
||||||
|
|
||||||
|
**이유**: FESA의 핵심 구현 언어는 C++17 이상이고, Phase 1은 외부 solver library 없이도 core/parser/DOF/result/comparator/element tests를 반복 실행해야 한다. CMake/CTest는 Visual Studio/MSVC와 다른 C++ toolchain 모두에서 표준적인 최소 공통 경로를 제공한다.
|
||||||
|
|
||||||
|
**트레이드오프**: oneAPI MKL, TBB, HDF5 adapter가 추가될 때 CMake dependency discovery가 더 복잡해진다. 대신 Phase 1에서는 외부 API를 core에 노출하지 않고 deterministic test adapter로 검증을 시작할 수 있다.
|
||||||
|
|
||||||
|
---
|
||||||
|
|
||||||
|
### ADR-018: Phase 1 MITC4 Baseline Closure
|
||||||
|
**결정**: Phase 1 MITC4 baseline은 `docs/MITC4_FORMULATION.md`의 closed baseline decisions를 따른다. 핵심 결정은 midside transverse shear tying interpolation, averaged-edge local shell basis, 2x2 Gauss integration, `drilling_stiffness_scale = 1.0e-6`, 그리고 mandatory result output을 `U`와 `RF`로 제한하는 것이다.
|
||||||
|
|
||||||
|
**이유**: MITC4 element implementation은 문서화된 baseline 없이 시작하면 reference 검증 전 수치 drift가 생기기 쉽다. Phase 1은 Abaqus S4 reference artifact가 아직 부족하므로, 작고 검증 가능한 baseline을 먼저 고정하고 element-level tests와 internal equilibrium tests로 보호한다.
|
||||||
|
|
||||||
|
**트레이드오프**: 이 baseline은 첫 구현을 안정화하기 위한 보수적 선택이며 Abaqus S4 reference 통과 후 drilling scale, warped-quadrilateral basis, stress/strain recovery, and shell resultant outputs may need refinement. `S4R`, reduced integration, and hourglass control remain out of scope.
|
||||||
|
|||||||
+62
-25
@@ -35,6 +35,47 @@ Non-scope:
|
|||||||
- Thermal-stress coupling.
|
- Thermal-stress coupling.
|
||||||
- Mesh quality diagnostics.
|
- Mesh quality diagnostics.
|
||||||
|
|
||||||
|
## Phase 1 Closed Baseline Decisions
|
||||||
|
The following decisions close the Phase 1 implementation gate for the first baseline C++ implementation. They are intentionally conservative and may be revised by ADR after Abaqus S4 reference cases are added.
|
||||||
|
|
||||||
|
Decisions:
|
||||||
|
- Mandatory Phase 1 result outputs are limited to nodal `U` and `RF`. Element `S`, `E`, and `SF` remain future outputs.
|
||||||
|
- In-plane membrane and bending terms use standard bilinear Reissner-Mindlin interpolation with 2x2 Gauss integration.
|
||||||
|
- Transverse shear uses MITC4 mid-side tying interpolation:
|
||||||
|
|
||||||
|
```text
|
||||||
|
gamma_xz_mitc(r, s) =
|
||||||
|
0.5 * (1 - s) * gamma_xz(0, -1)
|
||||||
|
+ 0.5 * (1 + s) * gamma_xz(0, +1)
|
||||||
|
|
||||||
|
gamma_yz_mitc(r, s) =
|
||||||
|
0.5 * (1 - r) * gamma_yz(-1, 0)
|
||||||
|
+ 0.5 * (1 + r) * gamma_yz(+1, 0)
|
||||||
|
```
|
||||||
|
|
||||||
|
- The four tying points are the midside natural-coordinate points `(0,-1)`, `(0,+1)`, `(-1,0)`, and `(+1,0)`.
|
||||||
|
- Local basis construction uses averaged opposite edges:
|
||||||
|
|
||||||
|
```text
|
||||||
|
v1 = 0.5 * ((x2 - x1) + (x3 - x4))
|
||||||
|
v2 = 0.5 * ((x4 - x1) + (x3 - x2))
|
||||||
|
e1 = normalize(v1)
|
||||||
|
e2_raw = v2 - dot(v2, e1) * e1
|
||||||
|
e2_pre = normalize(e2_raw)
|
||||||
|
e3 = normalize(cross(e1, e2_pre))
|
||||||
|
e2 = normalize(cross(e3, e1))
|
||||||
|
```
|
||||||
|
|
||||||
|
- For mildly warped quadrilaterals this is an averaged midsurface basis. Severe warpage is not diagnosed as mesh quality in Phase 1, but near-zero vectors or Jacobians are invalid/singular element diagnostics.
|
||||||
|
- Integration point order for stiffness tests is `(-g,-g)`, `(g,-g)`, `(g,g)`, `(-g,g)` conceptually, with `g = 1 / sqrt(3)`. Implementation may loop over the same set in row-major order as long as assembled stiffness is invariant.
|
||||||
|
- The default drilling stiffness scale is:
|
||||||
|
|
||||||
|
```text
|
||||||
|
drilling_stiffness_scale = 1.0e-6
|
||||||
|
```
|
||||||
|
|
||||||
|
The current baseline applies this scale to a representative `E * thickness` drilling stabilization term. The value is reported through the element options path and must be revisited after Abaqus S4 displacement references are available.
|
||||||
|
|
||||||
## Nodal DOFs
|
## Nodal DOFs
|
||||||
Each node has:
|
Each node has:
|
||||||
|
|
||||||
@@ -64,7 +105,7 @@ Node ordering:
|
|||||||
- Abaqus `TYPE=S4R` is not supported in Phase 1.
|
- Abaqus `TYPE=S4R` is not supported in Phase 1.
|
||||||
|
|
||||||
## Coordinate Frames
|
## Coordinate Frames
|
||||||
The exact local basis construction must be completed before MITC4 implementation.
|
The Phase 1 local basis construction is defined by the averaged-edge algorithm in `Phase 1 Closed Baseline Decisions`.
|
||||||
|
|
||||||
Minimum requirements:
|
Minimum requirements:
|
||||||
- Define a local shell normal from the quadrilateral geometry.
|
- Define a local shell normal from the quadrilateral geometry.
|
||||||
@@ -73,11 +114,10 @@ Minimum requirements:
|
|||||||
- Document behavior for non-planar quadrilaterals.
|
- Document behavior for non-planar quadrilaterals.
|
||||||
- Use the same convention consistently for stiffness, stress/strain recovery, and result output.
|
- Use the same convention consistently for stiffness, stress/strain recovery, and result output.
|
||||||
|
|
||||||
Recommended Phase 1 convention:
|
Phase 1 convention:
|
||||||
- Use the element midsurface geometry to compute an average normal.
|
- Use the element midsurface geometry to compute an average basis from opposite edges.
|
||||||
- Use a projected global axis to define the local 1-direction when possible, matching Abaqus convention conceptually.
|
- Use the positive shell normal implied by the input node ordering.
|
||||||
- Fall back to a stable element-edge-based direction when the projected global axis is nearly parallel to the normal.
|
- Use a right-handed local basis consistently for stiffness, reaction recovery, and future result output.
|
||||||
- Record the final algorithm in this document before coding.
|
|
||||||
|
|
||||||
## Shape Functions
|
## Shape Functions
|
||||||
Baseline quadrilateral bilinear interpolation:
|
Baseline quadrilateral bilinear interpolation:
|
||||||
@@ -108,12 +148,12 @@ MITC4 requirement:
|
|||||||
- Use MITC transverse shear interpolation to alleviate shear locking.
|
- Use MITC transverse shear interpolation to alleviate shear locking.
|
||||||
- Do not replace MITC4 with plain full-integration Reissner-Mindlin Q4.
|
- Do not replace MITC4 with plain full-integration Reissner-Mindlin Q4.
|
||||||
|
|
||||||
The exact tying point equations and shear interpolation formula must be added from the selected primary source before implementation.
|
The Phase 1 transverse shear tying formula is the midside interpolation stated in `Phase 1 Closed Baseline Decisions`.
|
||||||
|
|
||||||
## Numerical Integration
|
## Numerical Integration
|
||||||
Initial Phase 1 plan:
|
Phase 1 baseline:
|
||||||
- In-plane integration: 2x2 Gauss for membrane/bending/shear stiffness unless the final formulation requires a different split.
|
- In-plane integration: 2x2 Gauss for membrane, bending, MITC shear, and drilling stabilization.
|
||||||
- Thickness integration: homogeneous linear elastic section may be integrated analytically or with a documented simple rule.
|
- Thickness integration: homogeneous linear elastic shell section is integrated analytically using `t`, `t^3 / 12`, and shear correction `5 / 6`.
|
||||||
- Benchmark literature commonly reports 2x2 in-plane Gauss integration for S4/MITC4-style 4-node elements and 2-point thickness integration in comparative shell studies.
|
- Benchmark literature commonly reports 2x2 in-plane Gauss integration for S4/MITC4-style 4-node elements and 2-point thickness integration in comparative shell studies.
|
||||||
|
|
||||||
Rules:
|
Rules:
|
||||||
@@ -124,6 +164,7 @@ Rules:
|
|||||||
## Drilling DOF Stabilization
|
## Drilling DOF Stabilization
|
||||||
Decision:
|
Decision:
|
||||||
- Phase 1 uses small artificial drilling stiffness.
|
- Phase 1 uses small artificial drilling stiffness.
|
||||||
|
- Default scale: `drilling_stiffness_scale = 1.0e-6`.
|
||||||
|
|
||||||
Requirements:
|
Requirements:
|
||||||
- Expose a parameter such as `drilling_stiffness_scale`.
|
- Expose a parameter such as `drilling_stiffness_scale`.
|
||||||
@@ -132,13 +173,14 @@ Requirements:
|
|||||||
- Include benchmark sensitivity checks if reference results are sensitive to the value.
|
- Include benchmark sensitivity checks if reference results are sensitive to the value.
|
||||||
- Report the value in result metadata.
|
- Report the value in result metadata.
|
||||||
|
|
||||||
Open default proposal:
|
Baseline rule:
|
||||||
|
|
||||||
```text
|
```text
|
||||||
k_drill = alpha * representative_element_stiffness
|
k_drill = drilling_stiffness_scale * representative_element_stiffness
|
||||||
|
representative_element_stiffness = E * thickness
|
||||||
```
|
```
|
||||||
|
|
||||||
where `alpha` should be selected only after reviewing formulation sources and early reference cases.
|
The representative stiffness may be refined after the first Abaqus S4 reference cases are available.
|
||||||
|
|
||||||
## Element Outputs
|
## Element Outputs
|
||||||
Phase 1 minimum:
|
Phase 1 minimum:
|
||||||
@@ -165,15 +207,14 @@ Before integration with the global solver:
|
|||||||
- drilling stiffness sensitivity check.
|
- drilling stiffness sensitivity check.
|
||||||
|
|
||||||
## Pre-Implementation Gate
|
## Pre-Implementation Gate
|
||||||
Do not implement `MITC4Element` until these decisions are recorded in this document or a linked ADR:
|
Phase 1 baseline implementation may proceed because these items are now recorded above:
|
||||||
- exact transverse shear tying point equations.
|
- transverse shear tying point equations.
|
||||||
- exact local shell basis algorithm for flat and non-flat quadrilaterals.
|
- local shell basis algorithm for flat and mildly warped quadrilaterals.
|
||||||
- exact default drilling stiffness scale and parameter name.
|
- default drilling stiffness scale and parameter name.
|
||||||
- exact integration point ordering.
|
- integration point set and ordering convention.
|
||||||
- whether Phase 1 reports only `U` and `RF`, or also element stress/strain/resultant fields.
|
- Phase 1 mandatory output scope: `U` and `RF` only.
|
||||||
- stress/strain recovery locations if `S`, `E`, or `SF` are included in Phase 1.
|
|
||||||
|
|
||||||
If implementation starts before all optional stress/resultant decisions are closed, limit Phase 1 mandatory outputs to `U` and `RF`.
|
Stress/strain recovery locations for `S`, `E`, and `SF` remain future decisions and must not be implemented as mandatory Phase 1 outputs.
|
||||||
|
|
||||||
## Reference Benchmarks
|
## Reference Benchmarks
|
||||||
MITC4 baseline acceptance should include:
|
MITC4 baseline acceptance should include:
|
||||||
@@ -212,9 +253,5 @@ S4R:
|
|||||||
- Requires reduced integration and hourglass control decisions.
|
- Requires reduced integration and hourglass control decisions.
|
||||||
|
|
||||||
## Open Decisions Before Coding
|
## Open Decisions Before Coding
|
||||||
- Exact MITC4 transverse shear tying point formula.
|
|
||||||
- Exact element local basis for warped quads.
|
|
||||||
- Exact drilling stiffness default.
|
|
||||||
- Exact stress/strain recovery locations.
|
- Exact stress/strain recovery locations.
|
||||||
- Whether Phase 1 reports `S`, `E`, and `SF`, or only `U` and `RF`.
|
|
||||||
- Whether local coordinate transforms from Abaqus input are deferred or rejected.
|
- Whether local coordinate transforms from Abaqus input are deferred or rejected.
|
||||||
|
|||||||
File diff suppressed because it is too large
Load Diff
@@ -5,77 +5,92 @@
|
|||||||
{
|
{
|
||||||
"step": 0,
|
"step": 0,
|
||||||
"name": "build-test-harness",
|
"name": "build-test-harness",
|
||||||
"status": "pending"
|
"status": "completed",
|
||||||
|
"summary": "Added CMake/CTest build harness and wired validate_workspace.py to configure, build, and run tests."
|
||||||
},
|
},
|
||||||
{
|
{
|
||||||
"step": 1,
|
"step": 1,
|
||||||
"name": "core-types-diagnostics",
|
"name": "core-types-diagnostics",
|
||||||
"status": "pending"
|
"status": "completed",
|
||||||
|
"summary": "Added int64/double core aliases, DOF mapping, diagnostics, and tests."
|
||||||
},
|
},
|
||||||
{
|
{
|
||||||
"step": 2,
|
"step": 2,
|
||||||
"name": "domain-model",
|
"name": "domain-model",
|
||||||
"status": "pending"
|
"status": "completed",
|
||||||
|
"summary": "Added Phase 1 Domain entities for nodes, MITC4 elements, sets, materials, shell sections, loads, boundaries, and steps."
|
||||||
},
|
},
|
||||||
{
|
{
|
||||||
"step": 3,
|
"step": 3,
|
||||||
"name": "parser-foundation",
|
"name": "parser-foundation",
|
||||||
"status": "pending"
|
"status": "completed",
|
||||||
|
"summary": "Added Abaqus keyword parsing foundation with diagnostics and exact keyword dispatch."
|
||||||
},
|
},
|
||||||
{
|
{
|
||||||
"step": 4,
|
"step": 4,
|
||||||
"name": "parser-phase1-subset",
|
"name": "parser-phase1-subset",
|
||||||
"status": "pending"
|
"status": "completed",
|
||||||
|
"summary": "Implemented Phase 1 Abaqus subset parsing plus explicit unsupported-feature rejection tests."
|
||||||
},
|
},
|
||||||
{
|
{
|
||||||
"step": 5,
|
"step": 5,
|
||||||
"name": "domain-validation-diagnostics",
|
"name": "domain-validation-diagnostics",
|
||||||
"status": "pending"
|
"status": "completed",
|
||||||
|
"summary": "Added Domain validation for missing references, properties, materials, targets, and singular-prone states."
|
||||||
},
|
},
|
||||||
{
|
{
|
||||||
"step": 6,
|
"step": 6,
|
||||||
"name": "analysis-model-dof-manager",
|
"name": "analysis-model-dof-manager",
|
||||||
"status": "pending"
|
"status": "completed",
|
||||||
|
"summary": "Added six-DOF DofManager with constrained/free partitioning, equation numbering, and full-vector reconstruction."
|
||||||
},
|
},
|
||||||
{
|
{
|
||||||
"step": 7,
|
"step": 7,
|
||||||
"name": "math-solver-adapters",
|
"name": "math-solver-adapters",
|
||||||
"status": "pending"
|
"status": "completed",
|
||||||
|
"summary": "Added dense test matrix and deterministic Gaussian solver adapter with singular diagnostics."
|
||||||
},
|
},
|
||||||
{
|
{
|
||||||
"step": 8,
|
"step": 8,
|
||||||
"name": "results-writer-minimal",
|
"name": "results-writer-minimal",
|
||||||
"status": "pending"
|
"status": "completed",
|
||||||
|
"summary": "Added in-memory step/frame/field results for mandatory nodal U and RF outputs."
|
||||||
},
|
},
|
||||||
{
|
{
|
||||||
"step": 9,
|
"step": 9,
|
||||||
"name": "reference-displacement-comparator",
|
"name": "reference-displacement-comparator",
|
||||||
"status": "pending"
|
"status": "completed",
|
||||||
|
"summary": "Added Abaqus displacement CSV loader and node-id-based comparator with tolerance diagnostics."
|
||||||
},
|
},
|
||||||
{
|
{
|
||||||
"step": 10,
|
"step": 10,
|
||||||
"name": "mitc4-formulation-closure",
|
"name": "mitc4-formulation-closure",
|
||||||
"status": "pending"
|
"status": "completed",
|
||||||
|
"summary": "Closed the Phase 1 MITC4 baseline decisions for tying points, local basis, integration, drilling scale, and U/RF output scope."
|
||||||
},
|
},
|
||||||
{
|
{
|
||||||
"step": 11,
|
"step": 11,
|
||||||
"name": "mitc4-element-baseline",
|
"name": "mitc4-element-baseline",
|
||||||
"status": "pending"
|
"status": "completed",
|
||||||
|
"summary": "Implemented baseline MITC4 stiffness kernel with shape functions, MITC shear interpolation, local basis, and drilling stabilization tests."
|
||||||
},
|
},
|
||||||
{
|
{
|
||||||
"step": 12,
|
"step": 12,
|
||||||
"name": "assembly-reaction-recovery",
|
"name": "assembly-reaction-recovery",
|
||||||
"status": "pending"
|
"status": "completed",
|
||||||
|
"summary": "Added full-system assembly and RF recovery path using K_full * U_full - F_full."
|
||||||
},
|
},
|
||||||
{
|
{
|
||||||
"step": 13,
|
"step": 13,
|
||||||
"name": "linear-static-analysis-path",
|
"name": "linear-static-analysis-path",
|
||||||
"status": "pending"
|
"status": "completed",
|
||||||
|
"summary": "Added LinearStaticAnalysis path that assembles, solves, reconstructs full U, recovers RF, and writes results."
|
||||||
},
|
},
|
||||||
{
|
{
|
||||||
"step": 14,
|
"step": 14,
|
||||||
"name": "stored-reference-regression",
|
"name": "stored-reference-regression",
|
||||||
"status": "pending"
|
"status": "blocked",
|
||||||
|
"blocked_reason": "No Phase 1-compatible Abaqus TYPE=S4 reference input with matching *_displacements.csv is available. Existing quad_01 input contains S4R, Part/Assembly/Instance, Density, and NLGEOM=YES and is tested only as unsupported provenance/comparator format."
|
||||||
},
|
},
|
||||||
{
|
{
|
||||||
"step": 15,
|
"step": 15,
|
||||||
|
|||||||
+2
-1
@@ -2,7 +2,8 @@
|
|||||||
"phases": [
|
"phases": [
|
||||||
{
|
{
|
||||||
"dir": "1-linear-static-mitc4",
|
"dir": "1-linear-static-mitc4",
|
||||||
"status": "pending"
|
"status": "blocked",
|
||||||
|
"blocked_reason": "P1-15 stored-reference regression needs at least one Phase 1-compatible Abaqus TYPE=S4 input and matching displacement CSV; quad_01 remains S4R/NLGEOM provenance only."
|
||||||
}
|
}
|
||||||
]
|
]
|
||||||
}
|
}
|
||||||
|
|||||||
@@ -40,10 +40,25 @@ def load_npm_commands(root: Path) -> list[str]:
|
|||||||
return commands
|
return commands
|
||||||
|
|
||||||
|
|
||||||
|
def load_cmake_commands(root: Path) -> list[str]:
|
||||||
|
if not (root / "CMakeLists.txt").exists():
|
||||||
|
return []
|
||||||
|
|
||||||
|
build_dir = root / "build"
|
||||||
|
return [
|
||||||
|
f'cmake -S "{root}" -B "{build_dir}"',
|
||||||
|
f'cmake --build "{build_dir}" --config Debug',
|
||||||
|
f'ctest --test-dir "{build_dir}" --output-on-failure -C Debug',
|
||||||
|
]
|
||||||
|
|
||||||
|
|
||||||
def discover_commands(root: Path) -> list[str]:
|
def discover_commands(root: Path) -> list[str]:
|
||||||
env_commands = load_env_commands()
|
env_commands = load_env_commands()
|
||||||
if env_commands:
|
if env_commands:
|
||||||
return env_commands
|
return env_commands
|
||||||
|
cmake_commands = load_cmake_commands(root)
|
||||||
|
if cmake_commands:
|
||||||
|
return cmake_commands
|
||||||
return load_npm_commands(root)
|
return load_npm_commands(root)
|
||||||
|
|
||||||
|
|
||||||
@@ -54,11 +69,13 @@ def run_command(command: str, root: Path) -> subprocess.CompletedProcess:
|
|||||||
shell=True,
|
shell=True,
|
||||||
capture_output=True,
|
capture_output=True,
|
||||||
text=True,
|
text=True,
|
||||||
|
encoding="utf-8",
|
||||||
|
errors="replace",
|
||||||
)
|
)
|
||||||
|
|
||||||
|
|
||||||
def emit_stream(prefix: str, content: str, *, stream) -> None:
|
def emit_stream(prefix: str, content: str, *, stream) -> None:
|
||||||
text = content.strip()
|
text = (content or "").strip()
|
||||||
if not text:
|
if not text:
|
||||||
return
|
return
|
||||||
print(prefix, file=stream)
|
print(prefix, file=stream)
|
||||||
|
|||||||
@@ -0,0 +1,8 @@
|
|||||||
|
#include "fesa/fesa.hpp"
|
||||||
|
|
||||||
|
namespace fesa {
|
||||||
|
static_assert(sizeof(GlobalId) == 8, "GlobalId must remain 64-bit");
|
||||||
|
static_assert(sizeof(EquationId) == 8, "EquationId must remain 64-bit");
|
||||||
|
static_assert(sizeof(SparseIndex) == 8, "SparseIndex must remain 64-bit");
|
||||||
|
static_assert(sizeof(Real) == 8, "Real must remain double precision");
|
||||||
|
} // namespace fesa
|
||||||
@@ -0,0 +1,302 @@
|
|||||||
|
#include "fesa/fesa.hpp"
|
||||||
|
|
||||||
|
#include <cmath>
|
||||||
|
#include <functional>
|
||||||
|
#include <iostream>
|
||||||
|
#include <stdexcept>
|
||||||
|
#include <string>
|
||||||
|
#include <vector>
|
||||||
|
|
||||||
|
namespace {
|
||||||
|
|
||||||
|
using TestFn = std::function<void()>;
|
||||||
|
|
||||||
|
struct TestCase {
|
||||||
|
std::string name;
|
||||||
|
TestFn fn;
|
||||||
|
};
|
||||||
|
|
||||||
|
std::vector<TestCase>& registry() {
|
||||||
|
static std::vector<TestCase> tests;
|
||||||
|
return tests;
|
||||||
|
}
|
||||||
|
|
||||||
|
struct RegisterTest {
|
||||||
|
RegisterTest(std::string name, TestFn fn) {
|
||||||
|
registry().push_back({std::move(name), std::move(fn)});
|
||||||
|
}
|
||||||
|
};
|
||||||
|
|
||||||
|
#define FESA_TEST(name) \
|
||||||
|
void name(); \
|
||||||
|
RegisterTest register_##name(#name, name); \
|
||||||
|
void name()
|
||||||
|
|
||||||
|
#define FESA_CHECK(expr) \
|
||||||
|
do { \
|
||||||
|
if (!(expr)) { \
|
||||||
|
throw std::runtime_error(std::string("check failed: ") + #expr); \
|
||||||
|
} \
|
||||||
|
} while (false)
|
||||||
|
|
||||||
|
#define FESA_CHECK_NEAR(actual, expected, tol) \
|
||||||
|
do { \
|
||||||
|
const auto actual_value = (actual); \
|
||||||
|
const auto expected_value = (expected); \
|
||||||
|
if (std::fabs(actual_value - expected_value) > (tol)) { \
|
||||||
|
throw std::runtime_error(std::string("near check failed: ") + #actual); \
|
||||||
|
} \
|
||||||
|
} while (false)
|
||||||
|
|
||||||
|
std::string sourceRoot() {
|
||||||
|
#ifdef FESA_SOURCE_DIR
|
||||||
|
return FESA_SOURCE_DIR;
|
||||||
|
#else
|
||||||
|
return ".";
|
||||||
|
#endif
|
||||||
|
}
|
||||||
|
|
||||||
|
std::string phase1Input() {
|
||||||
|
return R"inp(
|
||||||
|
*Node
|
||||||
|
1, 0, 0, 0
|
||||||
|
2, 1, 0, 0
|
||||||
|
3, 1, 1, 0
|
||||||
|
4, 0, 1, 0
|
||||||
|
*Element, type=S4, elset=EALL
|
||||||
|
1, 1, 2, 3, 4
|
||||||
|
*Nset, nset=LEFT
|
||||||
|
1, 4
|
||||||
|
*Nset, nset=RIGHT
|
||||||
|
2, 3
|
||||||
|
*Elset, elset=EALL
|
||||||
|
1
|
||||||
|
*Material, name=STEEL
|
||||||
|
*Elastic
|
||||||
|
1000.0, 0.3
|
||||||
|
*Shell Section, elset=EALL, material=STEEL
|
||||||
|
0.1
|
||||||
|
*Boundary
|
||||||
|
LEFT, 1, 6, 0
|
||||||
|
RIGHT, 1, 2, 0
|
||||||
|
RIGHT, 4, 6, 0
|
||||||
|
*Cload
|
||||||
|
2, 3, -1
|
||||||
|
3, 3, -1
|
||||||
|
*Step, name=Step-1
|
||||||
|
*Static
|
||||||
|
*End Step
|
||||||
|
)inp";
|
||||||
|
}
|
||||||
|
|
||||||
|
fesa::Domain parsedPhase1Domain() {
|
||||||
|
fesa::AbaqusInputParser parser;
|
||||||
|
auto parsed = parser.parseString(phase1Input());
|
||||||
|
FESA_CHECK(parsed.ok());
|
||||||
|
auto diagnostics = fesa::validateDomain(parsed.domain);
|
||||||
|
FESA_CHECK(!fesa::hasError(diagnostics));
|
||||||
|
return parsed.domain;
|
||||||
|
}
|
||||||
|
|
||||||
|
} // namespace
|
||||||
|
|
||||||
|
FESA_TEST(core_types_and_dof_mapping_are_stable) {
|
||||||
|
FESA_CHECK(sizeof(fesa::Real) == 8);
|
||||||
|
FESA_CHECK(sizeof(fesa::GlobalId) == 8);
|
||||||
|
FESA_CHECK(sizeof(fesa::EquationId) == 8);
|
||||||
|
FESA_CHECK(fesa::abaqusDofNumber(fesa::Dof::UX) == 1);
|
||||||
|
FESA_CHECK(fesa::abaqusDofNumber(fesa::Dof::RZ) == 6);
|
||||||
|
FESA_CHECK(fesa::dofFromAbaqus(3).value() == fesa::Dof::UZ);
|
||||||
|
FESA_CHECK(std::string(fesa::dofLabel(fesa::Dof::RY)) == "RY");
|
||||||
|
}
|
||||||
|
|
||||||
|
FESA_TEST(parser_accepts_phase1_subset) {
|
||||||
|
fesa::AbaqusInputParser parser;
|
||||||
|
auto parsed = parser.parseString(phase1Input());
|
||||||
|
FESA_CHECK(parsed.ok());
|
||||||
|
FESA_CHECK(parsed.domain.nodes.size() == 4);
|
||||||
|
FESA_CHECK(parsed.domain.elements.size() == 1);
|
||||||
|
FESA_CHECK(parsed.domain.node_sets.at("left").node_ids.size() == 2);
|
||||||
|
FESA_CHECK(parsed.domain.element_sets.at("eall").element_ids.size() == 1);
|
||||||
|
FESA_CHECK(parsed.domain.materials.at("steel").elastic_modulus == 1000.0);
|
||||||
|
FESA_CHECK(parsed.domain.shell_sections.front().thickness == 0.1);
|
||||||
|
FESA_CHECK(parsed.domain.boundary_conditions.size() == 3);
|
||||||
|
FESA_CHECK(parsed.domain.loads.size() == 2);
|
||||||
|
}
|
||||||
|
|
||||||
|
FESA_TEST(parser_rejects_unsupported_features) {
|
||||||
|
const std::string text = R"inp(
|
||||||
|
*Part, name=P1
|
||||||
|
*Node
|
||||||
|
1, 0, 0, 0
|
||||||
|
*Element, type=S4R
|
||||||
|
1, 1, 2, 3, 4
|
||||||
|
*Step, nlgeom=YES
|
||||||
|
*End Step
|
||||||
|
)inp";
|
||||||
|
fesa::AbaqusInputParser parser;
|
||||||
|
auto parsed = parser.parseString(text);
|
||||||
|
FESA_CHECK(!parsed.ok());
|
||||||
|
FESA_CHECK(fesa::containsDiagnostic(parsed.diagnostics, "FESA-PARSE-UNSUPPORTED-KEYWORD"));
|
||||||
|
FESA_CHECK(fesa::containsDiagnostic(parsed.diagnostics, "FESA-PARSE-UNSUPPORTED-ELEMENT"));
|
||||||
|
FESA_CHECK(fesa::containsDiagnostic(parsed.diagnostics, "FESA-PARSE-UNSUPPORTED-NLGEOM"));
|
||||||
|
}
|
||||||
|
|
||||||
|
FESA_TEST(quad01_reference_input_remains_unsupported) {
|
||||||
|
fesa::AbaqusInputParser parser;
|
||||||
|
auto parsed = parser.parseFile(sourceRoot() + "/references/quad_01.inp");
|
||||||
|
FESA_CHECK(!parsed.ok());
|
||||||
|
FESA_CHECK(fesa::containsDiagnostic(parsed.diagnostics, "FESA-PARSE-UNSUPPORTED-KEYWORD") ||
|
||||||
|
fesa::containsDiagnostic(parsed.diagnostics, "FESA-PARSE-UNSUPPORTED-ELEMENT"));
|
||||||
|
}
|
||||||
|
|
||||||
|
FESA_TEST(domain_validation_reports_missing_property_and_targets) {
|
||||||
|
fesa::Domain domain;
|
||||||
|
domain.nodes[1] = {1, {0, 0, 0}};
|
||||||
|
domain.nodes[2] = {2, {1, 0, 0}};
|
||||||
|
domain.nodes[3] = {3, {1, 1, 0}};
|
||||||
|
domain.nodes[4] = {4, {0, 1, 0}};
|
||||||
|
domain.elements[1] = {1, fesa::ElementType::MITC4, {1, 2, 3, 4}, ""};
|
||||||
|
domain.loads.push_back({"MISSING", 3, 1.0});
|
||||||
|
auto diagnostics = fesa::validateDomain(domain);
|
||||||
|
FESA_CHECK(fesa::containsDiagnostic(diagnostics, "FESA-VALIDATION-MISSING-PROPERTY"));
|
||||||
|
FESA_CHECK(fesa::containsDiagnostic(diagnostics, "FESA-VALIDATION-MISSING-NSET"));
|
||||||
|
}
|
||||||
|
|
||||||
|
FESA_TEST(dof_manager_owns_equation_numbering_and_reconstruction) {
|
||||||
|
auto domain = parsedPhase1Domain();
|
||||||
|
fesa::DofManager dofs(domain);
|
||||||
|
FESA_CHECK(dofs.fullDofCount() == 24);
|
||||||
|
FESA_CHECK(dofs.freeDofCount() == 2);
|
||||||
|
FESA_CHECK(dofs.isConstrained(1, fesa::Dof::UX));
|
||||||
|
FESA_CHECK(dofs.equation(2, fesa::Dof::UZ) == 0);
|
||||||
|
FESA_CHECK(dofs.equation(3, fesa::Dof::UZ) == 1);
|
||||||
|
auto full = dofs.reconstructFullVector({-0.1, -0.2});
|
||||||
|
FESA_CHECK_NEAR(full[static_cast<std::size_t>(dofs.fullIndex(2, fesa::Dof::UZ))], -0.1, 1.0e-15);
|
||||||
|
FESA_CHECK_NEAR(full[static_cast<std::size_t>(dofs.fullIndex(1, fesa::Dof::UX))], 0.0, 1.0e-15);
|
||||||
|
}
|
||||||
|
|
||||||
|
FESA_TEST(gaussian_solver_solves_and_diagnoses_singular_systems) {
|
||||||
|
fesa::DenseMatrix a(2, 2);
|
||||||
|
a(0, 0) = 2.0;
|
||||||
|
a(0, 1) = 1.0;
|
||||||
|
a(1, 0) = 1.0;
|
||||||
|
a(1, 1) = 3.0;
|
||||||
|
fesa::GaussianEliminationSolver solver;
|
||||||
|
auto solved = solver.solve(a, {1.0, 2.0});
|
||||||
|
FESA_CHECK(solved.ok());
|
||||||
|
FESA_CHECK_NEAR(solved.x[0], 0.2, 1.0e-12);
|
||||||
|
FESA_CHECK_NEAR(solved.x[1], 0.6, 1.0e-12);
|
||||||
|
|
||||||
|
fesa::DenseMatrix singular(2, 2);
|
||||||
|
singular(0, 0) = 1.0;
|
||||||
|
singular(0, 1) = 2.0;
|
||||||
|
singular(1, 0) = 2.0;
|
||||||
|
singular(1, 1) = 4.0;
|
||||||
|
auto failed = solver.solve(singular, {1.0, 2.0});
|
||||||
|
FESA_CHECK(!failed.ok());
|
||||||
|
FESA_CHECK(fesa::containsDiagnostic(failed.diagnostics, "FESA-SINGULAR-SOLVER"));
|
||||||
|
}
|
||||||
|
|
||||||
|
FESA_TEST(results_writer_uses_step_frame_fields_for_u_and_rf) {
|
||||||
|
auto domain = parsedPhase1Domain();
|
||||||
|
fesa::DofManager dofs(domain);
|
||||||
|
std::vector<fesa::Real> u(static_cast<std::size_t>(dofs.fullDofCount()), 0.0);
|
||||||
|
std::vector<fesa::Real> rf(static_cast<std::size_t>(dofs.fullDofCount()), 0.0);
|
||||||
|
u[static_cast<std::size_t>(dofs.fullIndex(2, fesa::Dof::UZ))] = -0.1;
|
||||||
|
rf[static_cast<std::size_t>(dofs.fullIndex(1, fesa::Dof::UZ))] = 1.0;
|
||||||
|
fesa::InMemoryResultsWriter writer;
|
||||||
|
writer.writeLinearStatic(domain, dofs, u, rf);
|
||||||
|
const auto& result = writer.result();
|
||||||
|
FESA_CHECK(result.schema_name == "FESA_RESULTS");
|
||||||
|
FESA_CHECK(result.steps.size() == 1);
|
||||||
|
FESA_CHECK(result.steps[0].frames[0].field_outputs.count("U") == 1);
|
||||||
|
FESA_CHECK(result.steps[0].frames[0].field_outputs.count("RF") == 1);
|
||||||
|
FESA_CHECK(result.steps[0].frames[0].field_outputs.at("U").component_labels[2] == "UZ");
|
||||||
|
FESA_CHECK(result.steps[0].frames[0].field_outputs.at("RF").component_labels[2] == "RFZ");
|
||||||
|
}
|
||||||
|
|
||||||
|
FESA_TEST(displacement_csv_loader_accepts_quad01_format) {
|
||||||
|
auto table = fesa::loadDisplacementCsv(sourceRoot() + "/references/quad_01_displacements.csv");
|
||||||
|
FESA_CHECK(!fesa::hasError(table.diagnostics));
|
||||||
|
FESA_CHECK(table.rows.size() == 121);
|
||||||
|
FESA_CHECK(table.rows.count(1) == 1);
|
||||||
|
}
|
||||||
|
|
||||||
|
FESA_TEST(displacement_comparator_matches_by_node_id_not_row_order) {
|
||||||
|
fesa::FieldOutput actual;
|
||||||
|
actual.name = "U";
|
||||||
|
actual.entity_ids = {2, 1};
|
||||||
|
actual.component_labels = fesa::displacementComponentLabels();
|
||||||
|
actual.values = {{{2, 0, 0, 0, 0, 0}}, {{1, 0, 0, 0, 0, 0}}};
|
||||||
|
fesa::CsvDisplacementTable expected;
|
||||||
|
expected.rows[1] = {1, {1, 0, 0, 0, 0, 0}};
|
||||||
|
expected.rows[2] = {2, {2, 0, 0, 0, 0, 0}};
|
||||||
|
auto compared = fesa::compareDisplacements(actual, expected, {1.0e-12, 1.0e-12, 1.0});
|
||||||
|
FESA_CHECK(compared.pass);
|
||||||
|
}
|
||||||
|
|
||||||
|
FESA_TEST(mitc4_shape_functions_and_stiffness_baseline) {
|
||||||
|
auto shape = fesa::shapeFunctions(0.25, -0.5);
|
||||||
|
const fesa::Real sum = shape.n[0] + shape.n[1] + shape.n[2] + shape.n[3];
|
||||||
|
FESA_CHECK_NEAR(sum, 1.0, 1.0e-15);
|
||||||
|
|
||||||
|
const std::array<fesa::Vec3, 4> coords = {{{0, 0, 0}, {1, 0, 0}, {1, 1, 0}, {0, 1, 0}}};
|
||||||
|
fesa::MITC4ElementKernel kernel;
|
||||||
|
auto k = kernel.stiffness(coords, 1000.0, 0.3, 0.1);
|
||||||
|
FESA_CHECK(k.rows() == 24);
|
||||||
|
FESA_CHECK(k.cols() == 24);
|
||||||
|
for (fesa::LocalIndex i = 0; i < 24; ++i) {
|
||||||
|
for (fesa::LocalIndex j = 0; j < 24; ++j) {
|
||||||
|
FESA_CHECK_NEAR(k(i, j), k(j, i), 1.0e-8);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
std::vector<fesa::Real> uniform_translation(24, 0.0);
|
||||||
|
for (int node = 0; node < 4; ++node) {
|
||||||
|
uniform_translation[static_cast<std::size_t>(6 * node + 0)] = 1.0;
|
||||||
|
}
|
||||||
|
auto internal = k.multiply(uniform_translation);
|
||||||
|
fesa::Real norm = 0.0;
|
||||||
|
for (auto value : internal) {
|
||||||
|
norm += std::fabs(value);
|
||||||
|
}
|
||||||
|
FESA_CHECK(norm < 1.0e-8);
|
||||||
|
}
|
||||||
|
|
||||||
|
FESA_TEST(linear_static_analysis_solves_u_and_recovers_full_vector_rf) {
|
||||||
|
auto domain = parsedPhase1Domain();
|
||||||
|
fesa::LinearStaticAnalysis analysis;
|
||||||
|
auto result = analysis.run(domain);
|
||||||
|
FESA_CHECK(result.ok());
|
||||||
|
FESA_CHECK(result.state.converged);
|
||||||
|
FESA_CHECK(result.result_file.steps.size() == 1);
|
||||||
|
const auto& frame = result.result_file.steps[0].frames[0];
|
||||||
|
FESA_CHECK(frame.field_outputs.count("U") == 1);
|
||||||
|
FESA_CHECK(frame.field_outputs.count("RF") == 1);
|
||||||
|
fesa::Real total_rf_z = 0.0;
|
||||||
|
fesa::DofManager dofs(domain);
|
||||||
|
for (auto node_id : dofs.nodeIds()) {
|
||||||
|
total_rf_z += result.state.reaction_full[static_cast<std::size_t>(dofs.fullIndex(node_id, fesa::Dof::UZ))];
|
||||||
|
}
|
||||||
|
FESA_CHECK_NEAR(total_rf_z, 2.0, 1.0e-8);
|
||||||
|
}
|
||||||
|
|
||||||
|
int main() {
|
||||||
|
int failed = 0;
|
||||||
|
for (const auto& test : registry()) {
|
||||||
|
try {
|
||||||
|
test.fn();
|
||||||
|
std::cout << "[PASS] " << test.name << '\n';
|
||||||
|
} catch (const std::exception& error) {
|
||||||
|
++failed;
|
||||||
|
std::cerr << "[FAIL] " << test.name << ": " << error.what() << '\n';
|
||||||
|
}
|
||||||
|
}
|
||||||
|
if (failed != 0) {
|
||||||
|
std::cerr << failed << " test(s) failed\n";
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
std::cout << registry().size() << " test(s) passed\n";
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
Reference in New Issue
Block a user