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
Constrained Delaunay mesh of a cylinder: volume within the chordal bound, valid elements
A cylinder R = 10, H = 20 built with SolidCraft from design.json, tessellated within 0.05 and
tetrahedralized by mesh.tet.generate. The mesh fills the inscribed polyhedron, whose volume lies
between (1 − 2s/R)πR²H and πR²H.