NINI
53 lines
1.7 KiB
Markdown
53 lines
1.7 KiB
Markdown
# Sprint Contract: MITC4 Patch Benchmark Tests
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## Objective
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Add element-level and small-mesh MITC4 patch and benchmark tests before integrating stored Abaqus references.
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## Required Reading
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- /AGENTS.md
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- /docs/MITC4_FORMULATION.md
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- /docs/VERIFICATION_PLAN.md
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- /docs/NUMERICAL_CONVENTIONS.md
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## Scope
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- Add constant membrane, pure bending, pure shear, pure twist, rigid-body, and drilling sensitivity tests.
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- Add a thin cantilever or plate strip test to expose shear locking.
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- Add benchmark scaffolding for Scordelis-Lo after flat tests pass.
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## Allowed Files
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- `tests/`
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- `include/`
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- `src/` only for minimal fixes required by tests
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- `docs/VERIFICATION_PLAN.md` only for clarifying benchmark notes
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- `PLAN.md`
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- `PROGRESS.md`
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## Explicit Non-Goals
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- Do not require Abaqus execution.
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- Do not add pressure loads for Scordelis-Lo in Phase 1.
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- Do not hide failing element behavior by loosening tolerances without rationale.
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## Tests To Write First
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- The patch and benchmark tests are the sprint output; write them before any fixes.
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- Include at least one negative or sensitivity test for drilling scale effects.
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## Reference Artifacts
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- Local analytic or hand-check benchmark data only.
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- Stored Abaqus CSV regression is reserved for step 14.
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## Acceptance Commands
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```bash
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python scripts/validate_workspace.py
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```
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## Evaluator Checklist
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- Tests cover locking-sensitive behavior, not only shape functions.
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- Tolerances are scale-aware and documented.
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- Any implementation fixes remain minimal and within MITC4 scope.
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## Handoff Requirements
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- Record benchmark coverage and remaining gaps in `PROGRESS.md` and `PLAN.md`.
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## Do Not
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- Do not implement new load types to force a benchmark into Phase 1.
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