forked from 1b-agent/fieldcraft-upstream
The Scordelis-Lo roof and the pinched cylinder had their published references cited but no recipe, because mesh.block's 2D form is planar and cannot build a curved patch. Both are now active: the mesh is written node by node (mesh.node.add / mesh.element.add, the route docs/verification.md allows), the same cylinder patch the solver's own benchmarks.rs builds in code, with the quarter/eighth symmetry planes, the rigid diaphragm and the published load. - scordelis-lo-roof-shell: 16x16 flat quad4 (MITC4) shells, R = 25, t = 0.25, self-weight 90 per area; u_z at the free-edge mid-span -0.3024 within 2% (ours -0.29901009815961804, 1.12% low). - pinched-cylinder: 32x32 flat quad4 shells, R = 300, t = 3, a quarter of the unit pinch; u under the load -1.8248e-5 within 2% (ours -1.803845342860719e-05, 1.15% low). Each README carries the generator (so the recipe is reproducible), the refinement study the tolerance reason cites, and how the reference was cited before. pinched-hemisphere and mh-twisted-beam now say what they actually wait for: a doubly curved or helical shell mesh written node by node, not missing shell elements.
MacNeal–Harder twisted beam
Length 12, width 1.1, depth 0.32, twisted 90° root to tip, E = 29 × 10⁶, ν = 0.22, mesh 12 × 2, unit tip forces.