forked from 1b-agent/fieldcraft-upstream
f4a0333d28
* Nastran bulk data writer: fixed-format entries, exact large-field reals, SOL 101/103 decks Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm * Nastran writer tests: golden decks, a re-reader of our output, node order against Nastran's conventions Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm * docs: Nastran writer in the roadmap, parity table and deck notes Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm * Nastran writer: simplify planning (subcases, one property table), stream cards into the deck, write through the VFS ElementKind::corner_count/is_quadratic and Dofs::bits/from_bits join the model. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm * Nastran joins the shared deck formats; deck.write chooses steps for every format nastran::write_resolved is the FORMATS row; Format::write_steps and with_steps write a subset of steps (a Nastran run is static or frequency steps); problems go through the shared unsupported(). Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm --------- Co-authored-by: jyviko <2501648+jyviko@users.noreply.github.com> Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
65 lines
2.3 KiB
Plaintext
65 lines
2.3 KiB
Plaintext
$ Nastran bulk data written by ModelCraft
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$ units: mm-t-s-N-MPa
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SOL 101
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CEND
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TITLE = ModelCraft model
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ECHO = NONE
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SUBCASE 1
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SUBTITLE = Sag
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SPC = 1
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LOAD = 4
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DISPLACEMENT = ALL
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SPCFORCES = ALL
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STRESS = ALL
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STRAIN = ALL
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BEGIN BULK
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PARAM POST -1
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PARAM AUTOSPC YES
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$ nodes
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GRID* 1 0. 0.
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* 0.
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GRID* 2 5. 0.
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* 0.
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GRID* 3 10. 0.
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* 0.
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GRID* 4 0. 5.
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* 0.
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GRID* 5 5. 5.
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* 0.
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GRID* 6 10. 5.
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* 0.
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GRID* 7 0. 10.
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* 0.
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GRID* 8 5. 10.
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* 0.
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GRID* 9 10. 10.
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* 0.
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$ materials
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$ material Aluminium: MAT1 1
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MAT1* 1 70000. 0.33
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* 2.7E-9
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$ properties
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$ section skin: PSHELL 1
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PSHELL* 1 1 2. 1
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* 1
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$ elements
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CQUAD4 1 1 1 2 5 4
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CQUAD4 2 1 2 3 6 5
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CQUAD4 3 1 4 5 8 7
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CQUAD4 4 1 5 6 9 8
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$ boundary conditions
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$ step Sag: SPC 1
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SPC1 1 123456 1 4 7
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$ loads
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$ load press: PLOAD4 2
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PLOAD4* 2 1 -0.01
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PLOAD4* 2 2 -0.01
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PLOAD4* 2 3 -0.01
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PLOAD4* 2 4 -0.01
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$ load weight: GRAV 3
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GRAV* 3 1. 0.
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* 0. -9810.
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LOAD* 4 1. 1. 2
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* 1. 3
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ENDDATA
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