jyvikoandClaude Opus 5.5 f9981d305e solver: ties by dual mortar constraints ...

Each secondary node follows the main surface under it as the weighted average
u_A = sum_J (M_AJ / sum_K M_AK) u_J with M_AJ = int psi_A N_J over the reference overlaps and
psi the secondary faces' dual shape functions (Wohlmuth 2000), so the secondary mortar
matrix is diagonal; the rows join the couplings' constraint elimination in every implicit
analysis. Uncovered secondary nodes stay free with a warning; heat transfer and explicit
dynamics refuse ties by name. Tested by the tie patch test on non-matching hex8/tet4 meshes.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01UhhZMBTviDQxZvwnyP89fo

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..

contact.rs

explicit: deformable contact and friction, verified by bars, sliding blocks, the patch test and Hertz

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discrete.rs

Rename the project to FieldCraft

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elements.rs

explicit: opt-in mass scaling to a target increment, the added mass reported

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integrate.rs

explicit: opt-in mass scaling to a target increment, the added mass reported

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lib.rs

explicit: opt-in mass scaling to a target increment, the added mass reported

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result.rs

explicit: opt-in mass scaling to a target increment, the added mass reported

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system.rs

solver: ties by dual mortar constraints

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