New 693-line test file for hyperelasticity NEW API (test-driven development):
- Visionary tests for Neo-Hookean material model
- Tests for Mooney-Rivlin and Ogden models
- Tests for incompressibility constraint (nearly incompressible materials)
- Tests for uniaxial tension with large strains
- Extensive documentation of intended API design
- Tests currently skipped (@test_skip) until implementation complete
- Documents strain energy functions, stress computation, tangent moduli
- Documents frame-invariance and material objectivity
This test file serves as both test suite and API design documentation
for the new hyperelastic material model interface.
Jukka Aho