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
169 lines
3.4 KiB
JSON
169 lines
3.4 KiB
JSON
{
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"title": "MacNeal–Harder patch test for solids (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. 3 (p. 6) geometry and inner node locations, Table 2(c) (p. 10) boundary displacements and theoretical solution",
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"quantities": [
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{
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"id": "sxx",
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"quantity": "σ_xx at inner node 7 (0.788, 0.693, 0.644)",
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"measure": {
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"command": "solve.probe",
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"params": {
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"step": "Patch",
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"at": [
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[
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0.788,
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0.693,
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0.644
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]
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]
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},
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"pointer": "/nodes/0/stress/0"
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},
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"value": 2000.0,
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"tolerance": {
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"relative": 1e-09
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},
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"reason": "a patch test is passed exactly: the tolerance only admits rounding"
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},
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{
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"id": "syy",
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"quantity": "σ_yy at inner node 7 (0.788, 0.693, 0.644)",
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"measure": {
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"command": "solve.probe",
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"params": {
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"step": "Patch",
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"at": [
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[
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0.788,
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0.693,
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0.644
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]
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]
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},
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"pointer": "/nodes/0/stress/1"
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},
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"value": 2000.0,
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"tolerance": {
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"relative": 1e-09
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},
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"reason": "a patch test is passed exactly: the tolerance only admits rounding"
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},
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{
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"id": "szz",
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"quantity": "σ_zz at inner node 7 (0.788, 0.693, 0.644)",
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"measure": {
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"command": "solve.probe",
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"params": {
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"step": "Patch",
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"at": [
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[
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0.788,
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0.693,
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0.644
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]
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]
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},
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"pointer": "/nodes/0/stress/2"
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},
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"value": 2000.0,
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"tolerance": {
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"relative": 1e-09
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},
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"reason": "a patch test is passed exactly: the tolerance only admits rounding"
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},
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{
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"id": "txy",
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"quantity": "τ_xy at inner node 7",
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"measure": {
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"command": "solve.probe",
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"params": {
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"step": "Patch",
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"at": [
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[
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0.788,
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0.693,
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0.644
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]
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]
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},
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"pointer": "/nodes/0/stress/3"
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},
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"value": 400.0,
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"tolerance": {
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"relative": 1e-09
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},
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"reason": "a patch test is passed exactly: the tolerance only admits rounding"
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},
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{
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"id": "txz",
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"quantity": "τ_xz at inner node 7",
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"measure": {
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"command": "solve.probe",
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"params": {
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"step": "Patch",
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"at": [
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[
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0.788,
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0.693,
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0.644
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]
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]
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},
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"pointer": "/nodes/0/stress/4"
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},
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"value": 400.0,
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"tolerance": {
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"relative": 1e-09
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},
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"reason": "a patch test is passed exactly: the tolerance only admits rounding"
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},
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{
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"id": "tyz",
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"quantity": "τ_yz at inner node 7",
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"measure": {
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"command": "solve.probe",
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"params": {
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"step": "Patch",
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"at": [
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[
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0.788,
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0.693,
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0.644
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]
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]
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},
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"pointer": "/nodes/0/stress/5"
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},
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"value": 400.0,
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"tolerance": {
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"relative": 1e-09
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},
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"reason": "a patch test is passed exactly: the tolerance only admits rounding"
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},
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{
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"id": "u7",
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"quantity": "u_x at inner node 7",
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"measure": {
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"command": "solve.probe",
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"params": {
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"step": "Patch",
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"at": [
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[
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0.788,
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0.693,
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0.644
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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": 0.0014565000000000001,
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"tolerance": {
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"relative": 1e-09
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},
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"reason": "a patch test is passed exactly: the tolerance only admits rounding"
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}
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]
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}
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