Theory GuideΒΆ Contents Continuum Mechanics General motions Lagrangian and Eulerian descriptions Displacement, velocity, acceleration fields Material, special derivatives Deformation gradient Mixture theory at finite strain Strain and stress Strain Stress Balance laws Elasticity (single-phase) Lagrangian view Eulerian view Poromechanics (multiphase) General concepts Linear theory Non-linear theory (finite strain) Modeling Material Models Elasticity (linear and non-linear) Linear elastic Hyperelastic Generic weak form (single fields) Mixed Elasticity (linear and non-linear) Linear elastic Hyperelastic Lagrange method Generic weak form (mixed fields) Elastostatics vs. Elastodynamics Static and Quasistatic Elastodynamics Inelasticity (damage, plasticity) Damage Elastoplasticity & Viscoelasticity Poromechanics Linear theory (Biot theory) Finite-strain theory Material Point Method Theory Initializing Material Properties Boundary Conditions Boundary Conditions Rigid Contact Friction Models Pressure