forked from 1b-agent/fieldcraft-upstream
jyvikoandClaude Opus 5.5
6d9452ad84
The oracle binary (modelcraft-testkit) runs each case's recipe through the command engine, measures its quantities by JSON pointers into step outputs or commands, compares them with the cited references and the frozen fixtures, and writes docs/oracle.md. 20 theory cases (patch tests of every solid element, Timoshenko cantilevers, Lame, Kirsch, beam frequencies, torsion and bending through couplings, explicit waves and impact, CDT invariants), 8 published benchmarks (MacNeal-Harder patch, straight and curved cantilevers, thick cylinder, Scordelis-Lo with solids, NAFEMS LE1, LE10, FV32) and 10 pending cases with citations. Co-Authored-By: Claude Opus 5.5 <[email protected]> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm
77 lines
1.9 KiB
JSON
77 lines
1.9 KiB
JSON
{
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"title": "MacNeal–Harder thick-walled cylinder, nearly incompressible (hex8 with incompatible modes)",
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"kind": "benchmark",
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"source": "MacNeal and Harder, 'A proposed standard set of problems to test finite element accuracy', Finite Elements in Analysis and Design 1 (1985) 3–20: Fig. 10 (p. 9) geometry, material and radial mesh; Table 5(c) (p. 11) radial displacements at the inner radius",
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"quantities": [
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{
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"id": "ur_1",
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"quantity": "radial displacement at the inner radius, ν = 0.49",
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"measure": {
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"command": "solve.probe",
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"params": {
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"step": "Pressure",
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"at": [
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[
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3.0,
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0,
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0.0
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]
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]
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},
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"pointer": "/nodes/0/displacement/0"
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},
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"value": 0.0050399,
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"tolerance": {
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"relative": 0.02
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},
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"reason": "MacNeal and Harder grade an element A within 2% of the theoretical value on this prescribed coarse mesh (p. 14)"
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},
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{
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"id": "ur_2",
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"quantity": "radial displacement at the inner radius, ν = 0.499",
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"measure": {
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"command": "solve.probe",
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"params": {
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"step": "Pressure",
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"at": [
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[
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3.0,
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0,
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2.0
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]
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]
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},
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"pointer": "/nodes/0/displacement/0"
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},
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"value": 0.0050602,
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"tolerance": {
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"relative": 0.02
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},
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"reason": "MacNeal and Harder grade an element A within 2% of the theoretical value on this prescribed coarse mesh (p. 14)"
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},
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{
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"id": "ur_3",
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"quantity": "radial displacement at the inner radius, ν = 0.4999",
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"measure": {
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"command": "solve.probe",
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"params": {
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"step": "Pressure",
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"at": [
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[
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3.0,
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0,
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4.0
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]
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]
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},
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"pointer": "/nodes/0/displacement/0"
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},
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"value": 0.0050623,
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"tolerance": {
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"relative": 0.02
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},
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"reason": "MacNeal and Harder grade an element A within 2% of the theoretical value on this prescribed coarse mesh (p. 14)"
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}
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]
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}
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