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Commits
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 jyvikoandClaude Opus 5.5
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a30d0b5c5b |
explicit: deformable contact and friction, verified by bars, sliding blocks, the patch test and Hertz
Segment-to-segment penalty contact between element faces: each secondary face and each main face facing it are projected onto the secondary face's plane, split into triangles, clipped (Sutherland–Hodgman) and integrated with a three-point rule per sub-triangle (Puso–Laursen segmentation, the penalty at the integration points as Fischer–Wriggers), so a uniform pressure gives the consistent nodal forces on both meshes and the contact patch test passes on non-matching meshes. Every contact runs both ways at half the penalty: pairs with each surface as the secondary, general and self contact face against face. A bucket grid of face boxes every increment, faces integrated in parallel and their forces added in face order: the same numbers on any thread count. The penalty per area ε = s γ min(m/A)/Δt² comes from the lumped masses, each node's directional area and the stable increment, bounded by Gershgorin's row sums so contact never shortens the increment. Coulomb friction with exponential decay by a regularised return map at the secondary nodes; rigid walls take Coulomb impulses. Contact work and friction dissipation join the energy balance; each contact reports its peak force, first and last contact, deepest penetration, friction and the nodes adjusted at the start (initial penetrations adjusted strain-free or refused with the node, face and depth); a cap on contact faces. Verified (crates/explicit/tests/contact.rs, tests/oracle/explicit-*): colliding bars (2L/c +1.2%, ρcAv₀/2, KE kept to 0.005%, contact energy back to 8e-5 of it), blocks sliding to a stop on a rigid wall and on a plate under constant and decaying friction (0.005–0.2%), the patch test (σ_zz uniform to 0.06%), two spheres colliding against Hertz (peak +2.3%, duration −0.4%; the oracle case waits for a graded sphere mesher), a free body untouched by general contact, determinism across threads. Oracle measures gain `over` (ratios). Existing fixtures do not move. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm |
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jyvikoandClaude Opus 5.5
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9ba6224bb7 |
verification: a nearly incompressible hybrid block under prescribed stretch
nl-hybrid-incompressible: 27 hybrid hex8 at ν = 0.4999 pulled to λ = 2 by a prescribed displacement, against the compressible neo-Hookean closed form (1.4·10⁻⁹); its first iterations need the LDLᵀ factorization. ROADMAP and parity updated, docs/oracle.md regenerated. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> |
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jyvikoandClaude Opus 5.5
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d586d84859 |
verification: hyperelastic and thermal oracle cases and documentation
Five cases against closed forms: a Mooney-Rivlin block in Treloar's uniaxial, equibiaxial and pure-shear modes and a Yeoh block in uniaxial tension (the compressible energy's stresses, exact); a stretched Mooney-Rivlin tube inflated by a follower pressure (Rivlin's incompressible solution, 0.6 % at nu = 0.4995); free and fully held thermal expansion at a thermal stretch of 1.2 (exact); a bar held at its ends heated past yield (exact). docs/fem.md, the literature, ROADMAP (M15, M17), parity and the oracle page follow. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm |
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jyvikoandClaude Opus 5.5
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7a69fe5e2f |
verification: implicit plasticity oracle cases and documentation
Four cases, each against its closed form: uniaxial tension of a J2 cube to a logarithmic strain of 0.2 (Kirchhoff stress exact; 0.13 % from the explicit solver's hypoelastic Cauchy stress, the elastic volume change between the two laws), the Bauschinger effect of linear kinematic hardening on a load path back to zero strain (exact), Hill's elastic-perfectly plastic thick cylinder (bore displacement at a plastic radius of 1.5a within 0.009 %, collapse pressure within 2e-8; the pending case is now active) and a cantilever's plastic collapse, converged 3.1 % above beam theory's hinge, the bound a continuum exceeds. docs/fem.md, the literature, ROADMAP (M15), parity and the oracle page follow. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm |
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jyvikoandClaude Opus 5.5
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8ca2dddeec |
verification: nonlinear oracle cases and the nonlinear solver's documentation
Theory cases for the nonlinear solver, each frozen as a fixture: uniaxial stretch of a neo-Hookean block to twice its length (closed form), the nonlinear patch test on a distorted hex8 mesh, a quarter turn of the same mesh (objectivity: zero stress), the elastica of a hex20 cantilever at P L²/(E I) = 1, 2, 5, 10 against Bisshopp–Drucker (0.2–0.5 %), and the inflation of a thick neo-Hookean tube by a follower pressure against Rivlin's closed form (0.08 % at the bore). A finite-strain Cook's membrane is pending its transcribed reference. docs/fem.md describes the formulation, the material point interface, the follower-pressure choice and what nonlinear steps refuse; the literature, parity and roadmap pages follow. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm |
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jyvikoandClaude Opus 5.5
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d5bd74570f |
Rename the project to FieldCraft
Crates fieldcraft-*, binaries fieldcraft and fieldcraft-cli, the .fieldcraft file (format tag fieldcraft/1, manifest fieldcraft.json), FIELDCRAFT_* environment variables, the MCP server name, egui widget ids (fc_*), the app icon document FieldCraft.icon and its generated family, docs and licences. No compatibility shim: no files of the earlier name exist. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm |
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5afd1addb9 |
Structured hex: extrude, revolve, sweep and mapped all-hex meshing (M5) (#40)
* Structured hex meshing: multi-level extrude and revolve, one-to-one sweep, mapped blocks (M5) modelcraft_mesh::hex::hex_mesh meshes a face-tagged boundary surface with hexahedra by the first structured method that fits: a straight or rotational multi-level sweep (imprinted cross-section arrangement, cuts at reflex corners, mapped/annulus/free regions), a one-to-one sweep through rings of linking faces (least-squares affine layers with residual correction), or a mapped logical cube (trivariate transfinite interpolation). Interval assignment couples shared curves; boundary quads carry B-rep face tags; the certified validity gate, a tiling check and a fidelity check guard the output; hex20 mid-edge nodes go onto the faces. Shape::face_surfaces exposes the analytic face surfaces; the corpus runner gets a structured hex column. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm * mesh.hex.generate: structured hex meshing as a command Meshes one body, every body of the open design or an imported surface, replaces the mesh, tags element faces with the B-rep faces (so sets by geometry resolve) and reports per body the method, counts and quality. The quality pass certifies each element once and feeds the validity gate (quality::validity_gate_checks). Shape::size gives the cached body size for defaults instead of a full measure. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm * Hex: disk O-grids, convex interval cost, early size guard, hex20 corpus column Smooth single-loop sections (cylinders, tori, vases) get a butterfly O-grid instead of the free mesher; interval assignment raises counts by the squared relative error so equal sides share increments evenly; a mesh far beyond the element limit is refused before any work and mapped limits are no longer swallowed. The corpus reports hex8 and hex20 quality. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm * Catalogue: structured hex commands ready (mesh.hex.sweep, mesh.hex.mapped, mesh.hex.generate) mesh.hex.sweep and mesh.hex.mapped run mesh.hex.generate with the sweeping methods or the mapped one; mesh.hex.generate is the sweep entry's related command. The planned M6 octree entry moves to mesh.hex.octree (its icon renamed with it). docs/features.md regenerated. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm * Docs: structured hex literature (B8), architecture, roadmap, parity; corpus hex column Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm * Hex: simplify review fixes Prepare each sweep frame's cross-section once (arrangement, cuts, fill) and reuse it across refinement retries; candidate frames come from one setup pass. Edge triangles come from the feature edges, layer counts go through size::edge_divisions, sweep residual weights are computed once per node, flux shape functions live on the stack, and the arrangement's exact side test and distances serve the region probe. The engine takes the boundary options mesh.tet.generate takes and names unnamed faces by index like it; the corpus hex20 run reuses the winning method; the mapped entry lists mesh.hex.generate too; the octree icon is redrawn under its new id. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm * Regenerate docs/features.md and docs/meshing/corpus.md after rebasing Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm * Regenerate docs/features.md and docs/meshing/corpus.md after rebasing onto main Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm * Regenerate docs/features.md and docs/meshing/corpus.md after rebasing onto main Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm * Regenerate docs/features.md and docs/meshing/corpus.md after rebasing onto main Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm * Regenerate docs/features.md after rebasing onto main Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm * Regenerate docs/features.md after rebasing onto main Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm * Regenerate docs/features.md after rebasing onto main Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm --------- Co-authored-by: jyviko <2501648+jyviko@users.noreply.github.com> Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com> |
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29ae46ff84 |
Shells and beams: MITC4/MITC3 shells, Timoshenko beams, six-DOF nodes (M4) (#47)
* fem: MITC4/MITC3 flat shells and Timoshenko beams with profile properties (ElementDofs STRUCTURAL) Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm * solver: shells and beams on the DofLayout beside solids, 2D elements and trusses; analytic verification and tagged benchmarks Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm * engine: probe rotations, reaction moments and shell and beam element results; docs for shells and beams Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm --------- Co-authored-by: jyviko <2501648+jyviko@users.noreply.github.com> Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com> |
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15a9ac9157 |
1D elements I: trusses (rod2, rod3), point masses, rotary inertia, springs and dashpots (#38)
* Model, fem and decks: point masses, rotary inertia, springs, dashpots and rod3 trusses Model: PointMass and Spring definitions (spring | dashpot; to ground or two-point; along a degree of freedom, a vector or the line of the ends) on a set or reference point, resolved per node; ElementKind::Rod3. fem: rod2/rod3 truss kernel on Basis::Line2/Line3 declaring ElementDofs (translations). Decks: Abaqus T3D3, MASS, ROTARYI, SPRING1/2/A, DASHPOT1/2/A; Nastran CONM1, CELAS2, CDAMP2; LS-DYNA ELEMENT_MASS/INERTIA and ELEMENT_DISCRETE; what a format cannot take is reported. Commands model.mass.* and model.spring.*. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm * Implicit solver: trusses, point masses, rotary inertia and springs on the DofLayout Trusses declare their translations like solids; point masses, inertia and springs ask the layout for the kinds they need at their nodes (translations, rotations), and reference points they use get six degrees of freedom. The matrix pattern takes rows for those points; dashpots are ignored with a warning. Existing results are bit-identical (hash-checked). Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm * Explicit solver: trusses, point masses, springs and dashpots on the node-major layout Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm * docs: fem.md on trusses and discrete elements in the layout; regenerate features.md Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm * docs: trusses in plane models and corotational explicit trusses Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm --------- Co-authored-by: jyviko <2501648+jyviko@users.noreply.github.com> Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com> |
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jyvikoandClaude Opus 5.5
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50764def18 |
Explicit X2: large deformation, J2 and Johnson-Cook plasticity, damage and erosion (M10)
- model: materials gain solver-neutral plastic (bilinear isotropic/kinematic, hardening table, Johnson-Cook with adiabatic heating), damage (Johnson-Cook D1-D5) and erosion (plastic strain); explicit steps gain nonlinear_geometry (default on) and stress_rate (jaumann | green_naghdi). - fem: rotation (Hughes-Winget, Flanagan-Taylor), plasticity (radial return, capped bracketed Newton for Johnson-Cook, damage; the update takes the mechanical strain increment so thermal strains can be subtracted), closed-form hex8 gradients for deformed configurations. - explicit: updated Lagrangian hex8/tet4, per-element material state, erosion with reported energy, plastic work in the energy account. - solver: warns that the linear solver uses the elastic constants of plastic materials (results hash-identical). - decks: Abaqus *PLASTIC (+ Johnson-Cook keywords), Nastran MATS1/TABLES1, LS-DYNA *MAT_PLASTIC_KINEMATIC / *MAT_PIECEWISE_LINEAR_PLASTICITY; what a format cannot express is reported as Unsupported. - engine: model.material.plasticity, model.material.damage (catalogue ready), explicit element probe, eroded elements in the solve summary. Step commits before the rebase onto the DOF framework: branch explicit-x2-steps. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm |
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4c0fcc80ad |
2D elements: plane stress, plane strain and axisymmetric sections on the DOF framework; mesh.planar (M4) (#39)
Model: planar section kinds with Extent, element edges in sets, edge-weighted 2D loads,
centrifugal load, 2D model checks. fem: Plane kernels on Basis::{Tri3,Tri6,Quad4,Quad8}
declaring ElementDofs::new(DofSet::PLANE); QM6 incompatible modes with the
Wilson-Ibrahimbegovic correction. Solver: Kernel enum on the DofLayout; 3D results
bit-identical (hash-checked). Decks: Abaqus CPS/CPE/CAX, Nastran membranes and RFORCE,
LS-DYNA ELFORM 12/13. Mesh: free triangle mesher, planar region meshing, face boundaries.
Engine: mesh.planar with tagged edges. Analytic verification suite in solver/tests/plane.rs.
Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm
Co-authored-by: jyviko <2501648+jyviko@users.noreply.github.com>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
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d45a2da5b5 |
Explicit dynamics core: central differences, one-point hex8 with hourglass control, nodal-pressure tet4, solve.explicit (M10 X1) (#27)
* Model: explicit dynamic steps (end time, increment scale and cap, output intervals, initial velocities, rigid walls, hourglass and bulk viscosity controls); deck writers refuse them Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm * fem: uniform-strain hex8 and tet4 kinematics, Flanagan–Belytschko hourglass shape vectors, element frequency bound Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm * Explicit solver crate (L2): central differences with lumped mass, one-point hex8 with Flanagan–Belytschko hourglass control, Bonet–Burton tet4, bulk viscosity, rigid walls, energy account; wave and impact verification Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm * Engine: solve.explicit and solve.history commands, explicit results in the session and solve.probe; cantilever period against the modal solver Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm * Docs: explicit solver in the architecture, roadmap (M10 started), parity and literature (Part H) Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm * Simplify: Model::select_step shared by both solvers, Procedure::sets/is_dynamic, fused per-increment passes without allocation, shared element tail, generic command caps Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm * Catalogue: solve.explicit is ready; solve.history beside solve.probe Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm * Rebase onto the implicit couplings work: Procedure is no longer Copy Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm --------- Co-authored-by: jyviko <2501648+jyviko@users.noreply.github.com> Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com> |
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48039639cb |
Implicit solver: reference points, couplings, moments, wedge6 (M4) (#26)
* fem: wedge6 element (triangle × interval, 3 × 2 points), patch and cantilever tests Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm * solver: reference points, kinematic and distributing couplings, moments by constraint elimination Coupled reference points get six degrees of freedom; kinematic couplings are rigid links, distributing couplings least-squares interpolation constraints. Every constraint row and prescribed value is eliminated master-slave (Abel-Shephard pivot choice), so the reduced matrix stays SPD; no coupling gives the old elimination bit for bit. Verified: rigid motion of a coupled block, clamping through a point, distributing tension vs pressure, bending and tube torsion. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm * engine: reference point results in solve.static and solve.probe Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm * docs: couplings, moments and wedge6 in the solver docs, literature and roadmap Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm * solver: simplify constraint elimination and reference point plumbing Rows combine by one sort; T_f transposed once; K and M reduced in one pass on a shared pattern; prescribed motion computed once; reference point loads and BCs go through Resolved like node ones (Mesh::label_dofs); one dof-direction rule; StepResult::locate for probes; dead Csr::restrict removed. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm * solver: refuse oversized reductions before allocating them A held distributing coupling point makes a dense (3N)^2 block; estimate it from the constraint rows and refuse it against the factorization's memory budget with a clear message, before anything is built. Other reductions with dependents count their entries first (stopping at the budget) and reserve fallibly. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm --------- Co-authored-by: jyviko <2501648+jyviko@users.noreply.github.com> Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com> |
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40f98f0af9 |
Implicit solver: fem kernels (tet4/10, hex8, hex20), sparse Cholesky, block Lanczos, solve.* commands (M4) (#23)
* Renumber the layer table for solver crates: fem at L1, solver at L2, fsi at L3 L0 model -> L1 geometry, mesh, fem, decks, render -> L2 solver (explicit, lbm later) -> L3 fsi (later) -> L4 doc -> L5 io -> L6 engine -> L7 ui-egui, mcp -> apps. UI_MIN_LAYER moves to 7, the testkit sits above it. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm * modelcraft-fem: element kernels for tet4, tet10, hex8 (full, incompatible modes), hex20 (full, reduced) Shape functions, Gauss and conical-product quadrature, stiffness, consistent and HRZ-lumped mass, body forces, consistent pressure loads on faces, integration-point stresses and their least-squares extrapolation to nodes, isotropic and orthotropic elasticity. The element table is one row per kind, so wedges, shells and beams are added locally. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm * modelcraft-solver: linear static and frequency analysis with an analytic verification suite Assembly from the resolved model on the node graph, boundary conditions by elimination, consistent pressure, gravity and body-force loads, nested-dissection ordering, sparse up-looking Cholesky with a factor-size cap, reactions, integration-point and nodal-averaged stresses, von Mises; shift-invert block Lanczos with full reorthogonalization for natural modes, participation and effective mass. ADR 0001 records the own-linear-algebra decision (determinism, wasm). Verified against closed forms: displacement and traction patch tests for every element, cantilever tip deflection (Timoshenko) with convergence rates, Lamé cylinder, Kirsch hole (Kt -> 3), cantilever and free-free beam frequencies with six rigid-body modes. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm * Engine: solve.static, solve.frequency and solve.probe; results kept in the session Results are stored per step, restored on a failed command and cleared when the model changes. Caps (degrees of freedom, factor entries, Lanczos vectors) may only be lowered; hostile parameters are tested against a solvable session. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm * docs: implicit solver architecture, roadmap M4, parity and references Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm * Simplify the solver: shared face integration, block assembly, cached extrapolation - model: one face integrator (nodal::face_normal_weights) for tractions and pressures - fem: mid-side tables from ElementKind::edges, orthotropic via inverse3, symmetric accumulation without a symmetrize pass, incompatible-mode recovery without K_uu, model's coordinate check, dead table rows removed - solver: one pattern search per node pair (block, scalar and diagonal adds), extrapolation built once per element type, reactions from the prescribed rows only, matrices dropped after restriction, the free-body shift keyed on the factorization error, step selection in the solver, Error::Element naming the element - engine: the solver owns the default step and the shift check; the model comparison runs once Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm * docs: results are stamped with the session revision Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm --------- Co-authored-by: jyviko <2501648+jyviko@users.noreply.github.com> Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com> |
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81fa8d7220 |
LS-DYNA keyword writer (implicit static and eigenvalue, M3) (#25)
* decks: LS-DYNA keyword writer (long format, implicit static and eigenvalue) Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm * decks: LS-DYNA golden files, Jacobian-sign node-order tests, re-reader and refusals Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm * docs: LS-DYNA writer status and deck notes Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm * decks: simplify the LS-DYNA writer (plan decides once, cards written in place, shared test tables) Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm * decks: LS-DYNA joins FORMATS (deck.write lsdyna), refusals reported together, shared concentrated loads Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm * decks: LS-DYNA on main's shared deck API (steps parameter, model helpers) Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm --------- Co-authored-by: jyviko <2501648+jyviko@users.noreply.github.com> Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com> |
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f4a0333d28 |
Nastran bulk data writer (SOL 101/103) and deck.write steps (M3) (#24)
* Nastran bulk data writer: fixed-format entries, exact large-field reals, SOL 101/103 decks Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm * Nastran writer tests: golden decks, a re-reader of our output, node order against Nastran's conventions Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm * docs: Nastran writer in the roadmap, parity table and deck notes Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm * Nastran writer: simplify planning (subcases, one property table), stream cards into the deck, write through the VFS ElementKind::corner_count/is_quadratic and Dofs::bits/from_bits join the model. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm * Nastran joins the shared deck formats; deck.write chooses steps for every format nastran::write_resolved is the FORMATS row; Format::write_steps and with_steps write a subset of steps (a Nastran run is static or frequency steps); problems go through the shared unsupported(). Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm --------- Co-authored-by: jyviko <2501648+jyviko@users.noreply.github.com> Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com> |
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a71f85eb58 |
Abaqus input writer and deck.write (M3) (#22)
* decks: Abaqus input writer with golden decks, read-back, Jacobian and unsupported tests Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm * engine: deck.write command (format dispatch, atomic file write), docs Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm * decks: format table, one resolve per write, direct buffer writes; engine: shared path parameter Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm --------- Co-authored-by: jyviko <2501648+jyviko@users.noreply.github.com> Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com> |
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2d99a8571c |
The .modelcraft file, undo/redo on the journal, atomic saves and autosave recovery (M3) (#21)
* modelcraft-io: the .modelcraft file (modelcraft/1), atomic writes, autosave storage A stored ZIP of a manifest (format tag, geometry sources with SHA-256, part sizes and hashes), the model definition as stable pretty JSON, the mesh and geometry tags in a compact binary part, and the journal one command per line. Reading caps every size, checks every checksum and replays the model through its checked methods. Model::without_mesh and empty mesh fields left out of the model's JSON; geometry::read_file. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm * engine: undo/redo on the journal, file.open/save/save_as, autosave and recovery CommandSpec gains a kind: Model commands are journalled and become undo steps; Session commands (file.*, edit.*) manage the session. Undo history is bounded by steps and estimated memory. Geometry sources are recorded with content hashes and reopened on file.open (missing or changed files are warnings). Desktop app autosaves every 30 s and reports recoverable models; Ctrl/Cmd+Z and Shift+Z/Y undo and redo. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm * docs: the .modelcraft format, undo history, roadmap and parity status Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm * simplify: shared path parameter, one load path for open/recover, history accounting in History Session commands skip the per-command model copy; saved revision is an Option; journal written from borrowed entries and read without an intermediate tree; backups copied by the file system; recovery lock and error helpers; geometry file wrappers use read_file. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm --------- Co-authored-by: jyviko <2501648+jyviko@users.noreply.github.com> Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com> |
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57b4b2f4d2 |
Model definition: sets by geometry name, materials, sections, couplings, BCs, loads, steps, check (#16)
* model: split nodes and elements into a mesh module (no behaviour change) Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm * model: sets by geometry name, materials and units, sections, couplings, BCs, loads, steps and the check Sets bind to persistent geometry names through the mesh's geometry tags (element, element face/edge and node classification) and resolve against the current mesh, so they survive a remesh. Steps list their active loads and boundary conditions explicitly. Model::check names every missing or bad item; Model::resolve gives the writers' view. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm * engine: model definition commands (sets, materials, sections, RPs, couplings, BCs, loads, steps, tags, check) Each definition has create/edit/delete with its model JSON form as parameters; model.step.activate and model.activity drive the explicit step table; mesh.tag records where the mesh lies on the geometry; model.check and model.set.resolve report against the current mesh. Hostile params run against an empty and a fully defined session. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm * docs: model definition in architecture and roadmap Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm * model, engine: review cleanups Validated deserialization (a file replays through the checked methods), interned geometry tags by index, set resolution with tag bitsets and sorted vectors, one delete policy (a load or BC listed by a step is in use), shared helpers (context, remove_existing, step_mut, opt/req/name/listed), dead code removed, Resolved without a per-element section map. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm * model: mesh-independent force distribution, tractions, stable reference point labels Force and moment on a set default to a total, split by consistent nodal weights over the set's faces (or equally over a node set); per_node is an explicit opt-in. Traction is force per area. resolve() expands them to nodal values for every writer and the solver. Reference points keep a stored node label taken from the top of the label range. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm --------- Co-authored-by: jyviko <2501648+jyviko@users.noreply.github.com> Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com> |
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2b5b47930f |
docs: roadmap revised around Abaqus/CAE scope; capability checklist (#13)
One end-to-end slice first (sets bound to SolidCraft names, materials, sections, BCs, loads, steps, three deck writers, own solve) on tet meshes; then structured hex (sweep, mapped, automatic decomposition) before octree all-hex; then contact, materials and explicit, and post-processing. docs/parity.md lists capabilities by milestone, with the areas where we aim to be better than Abaqus/CAE. Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm Co-authored-by: jyviko <2501648+jyviko@users.noreply.github.com> Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com> |