Jukka Aho 1ed455604f test(geometry): add deformation gradient test ...

New 561-line test file for deformation gradient computation:
- Tests F = ∂x/∂X = I + ∂u/∂X for finite strain mechanics
- Tests identity case (u = 0 → F = I)
- Tests pure translation (rigid body motion)
- Tests pure stretch and simple shear cases
- Tests small vs finite strain difference
- Validates physical constraints (det(F) > 0)
- Tests Hex8 and Tet10 elements
- Validates zero-allocation performance

Comprehensive test for deformation gradient computation essential
for finite strain analysis and hyperelastic materials.

2025-12-15 08:13:44 +02:00

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assemblers

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backend

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basis

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dofs

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domains/continuum

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element

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elements

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fields

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geometry

test(geometry): add deformation gradient test

2025-12-15 08:13:44 +02:00

materials

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physics

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quadrature

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test_elasticity_2d_nonlinear_with_surface_load

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test_preprocess

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test_problems_contact_2d_autodiff

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test_problems_contact_3d

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test_problems_mortar_3d

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test_solvers_postprocess

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testdata

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topology

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tutorials/01_fundamentals

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validation

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runtests.jl

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