Files
JuliaFEM.jl/src
Jukka Aho 84a1bfec4e feat(physics): Add ElasticityPhysics type with geometric/material nonlinearity
New file src/physics/elasticity.jl:
- ElasticityPhysics struct implementing AbstractPhysics interface
- Formulations: plane_stress, plane_strain, continuum (3D)
- finite_strain flag for Green-Lagrange strain (geometric nonlinearity)
- geometric_stiffness flag for buckling analysis
- Field storage control: store_fields (converged), store_iteration_fields (debug)
- Interface methods: get_unknown_field_name, get_formulation_type, get_unknown_field_dimension
- should_store_field() for selective field storage
- 205 lines with comprehensive documentation and GPU design notes
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