NINI
67 lines
2.9 KiB
Markdown
67 lines
2.9 KiB
Markdown
# FESA Reference Artifacts
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This folder stores Abaqus input files and solved reference result artifacts used to verify FESA.
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Abaqus is not run by the repository validation flow. Files here are treated as stored numerical references after they are accepted.
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## Initial Accepted Files
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| Case | Input | Result Artifact | Notes |
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| `quad_01` | `quad_01.inp` | `quad_01_displacements.csv` | Abaqus/CAE Learning Edition 2024 source input; displacement CSV has 121 nodal rows |
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| `quad_02` | `quad_02.inp` | `quad_02_displacements.csv`, `quad_02_reactionforces.csv` | Abaqus/CAE Learning Edition 2024 source input; `TYPE=S4`; displacement and RF/RM CSV files each have 121 nodal rows; original input remains unsupported provenance because it contains Abaqus/CAE scaffolding |
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| `quad_02_phase1` | `quad_02_phase1.inp` | `quad_02_displacements.csv`, `quad_02_reactionforces.csv` | Normalized Phase 1 parser-compatible derivative of `quad_02.inp`; preserves ids, connectivity, material, shell thickness, fixed boundary set, and concentrated load |
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Case-specific notes:
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- `quad_02_notes.md`
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## Displacement CSV Format
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`*_displacements.csv` files use Abaqus-exported nodal displacement columns:
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```text
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Node Label, U-U1, U-U2, U-U3, UR-UR1, UR-UR2, UR-UR3
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```
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Mapping to FESA:
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| CSV Column | FESA Component |
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| `Node Label` | node id |
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| `U-U1` | `UX` |
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| `U-U2` | `UY` |
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| `U-U3` | `UZ` |
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| `UR-UR1` | `RX` |
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| `UR-UR2` | `RY` |
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| `UR-UR3` | `RZ` |
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## Reaction CSV Format
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`*_reactionforces.csv` and `*_reactions.csv` files use Abaqus-exported nodal reaction columns:
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```text
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Node Label, RF-RF1, RF-RF2, RF-RF3, RM-RM1, RM-RM2, RM-RM3
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```
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Mapping to FESA:
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| CSV Column | FESA Component |
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| `Node Label` | node id |
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| `RF-RF1` | `RFX` |
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| `RF-RF2` | `RFY` |
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| `RF-RF3` | `RFZ` |
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| `RM-RM1` | `RMX` |
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| `RM-RM2` | `RMY` |
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| `RM-RM3` | `RMZ` |
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`quad_02_reactionforces.csv` is onboarded as a stored reaction artifact, but the current FESA node-wise RF comparison does not pass yet. Keep the mismatch visible until the solver/formulation difference is explained or fixed.
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## Compatibility Notes
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Stored Abaqus inputs may contain features outside the current FESA Phase 1 parser subset. Preserve the original files and document unsupported features instead of editing them in place.
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`quad_01.inp` currently includes `TYPE=S4R`, `Part/Assembly/Instance`, `*Density`, and `NLGEOM=YES`. These are stored for reference provenance and future compatibility work; they are not Phase 1 parser acceptance requirements unless `docs/ABAQUS_INPUT_SUBSET.md` and `docs/ADR.md` are updated.
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`quad_02.inp` currently includes `TYPE=S4`, `Part/Assembly/Instance`, `*Density`, restart/output request keywords, and Abaqus/CAE step metadata. `quad_02_phase1.inp` is the accepted Phase 1-compatible derivative input. The original file must continue to be treated as stored provenance, not as parser acceptance.
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