forked from 1b-agent/fieldcraft-upstream
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
399 B
399 B
MacNeal–Harder curved cantilever, hex8 with incompatible modes
Our model of the published problem: a quarter ring, inner radius 4.12, outer 4.32, thickness 0.1 (E = 10⁷, ν = 0.25), of the prescribed 6 × 1 elements (hex8 with incompatible modes, corners on the arcs), clamped at one end; a unit force at the free end, in the plane across the beam and out of the plane, each a separate step.