jyvikoandClaude Opus 5.5 9a8ae50bca fem: initial-stress (geometric) stiffness of solid and 2D elements ...

K_σ = ∫ (∇N_a · σ ∇N_b) I dV for a stress state at the stiffness points (solids, plane and
axisymmetric elements with the hoop term), for linear buckling. Checked: uᵀK_σu = σ V for a
uniform stress on a distorted hex20 and a plane strain quad8, rigid translations in its null space.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

2026-10-14 13:30:59 -04:00

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src

fem: initial-stress (geometric) stiffness of solid and 2D elements

2026-10-14 13:30:59 -04:00

Cargo.toml

Rename the project to FieldCraft

2026-10-13 23:51:40 -04:00