A computational framework for polyconvex large strain elasticity
Conjugate stresses to the extended kinematic set, elegantly related to classical stress tensors. A convex complementary strain energy functional in terms of a new set of conjugate stresses. Formulation of several variational principles, expanding the ideas in Schrder etal. (2011). A novel HellingerReissner variational principle. A stabilised PetrovGalerkin discretisation in the context of mixed principles.
large strain elasticity polyconvex elasticity mixed variational principle complementary energy variational principle incompressible elasticity finite elements