forked from 1b-agent/fieldcraft-upstream
jyvikoandClaude Opus 5.5
96c9992c92
The pending 2D LE1 case becomes a real one; the plasticity cases stay pending with what they still need (static J2 for the collapse pressure, the transcribed measurements for the Taylor bar). Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm
54 lines
1.3 KiB
JSON
54 lines
1.3 KiB
JSON
{
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"title": "Plate with a circular hole in tension, 2D plane stress (Kirsch)",
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"kind": "theory",
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"source": "Kirsch, Zeitschrift des VDI 42 (1898) 797–807; Timoshenko and Goodier, Theory of Elasticity, 3rd ed., 1970, §35",
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"quantities": [
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{
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"id": "kt",
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"quantity": "σ_xx at the top of the hole (0, 1) over the remote stress",
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"measure": {
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"command": "solve.probe",
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"params": {
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"step": "Tension",
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"at": [
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[
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0,
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1.0,
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0
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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": 3.0,
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"tolerance": {
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"relative": 0.02
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},
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"reason": "the reference is the infinite plate; the finite plate (W = 60a, loaded ends 30a away) raises the peak by a few tenths of a percent, and the stress extrapolated to the hole surface adds up to about 1%"
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},
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{
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"id": "side",
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"quantity": "σ_yy at the side of the hole (1, 0) over the remote stress",
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"measure": {
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"command": "solve.probe",
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"params": {
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"step": "Tension",
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"at": [
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[
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1.0,
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0,
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0
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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": -1.0,
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"tolerance": {
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"relative": 0.03
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},
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"reason": "infinite-plate value −S; finite width and extrapolation as for Kt, on a smaller value"
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}
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]
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}
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