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
527 B
527 B
MacNeal–Harder straight cantilever, regular hex8 mesh with incompatible modes
Our model of the published problem: a beam 6.0 long, 0.2 wide, 0.1 deep (E = 10⁷, ν = 0.3) of the prescribed 6 × 1 regular elements, here hex8 with incompatible modes, clamped at one end; unit forces at the free end along the beam, across its width and across its depth (spread over the end face by area), and a unit twisting moment through a distributing coupling, each a separate step. Displacements are read at a corner of the free end.