Integrating a logarithmic-strain based hyperelastic formulation into a three-field mixed finite element formulation to deal with incompressibility in finite-strain elastoplasticity
A three-field mixed finite element formulation in finite-strain is proposed. It is based on an additive split of the logarithmic strain into elastic and plastic parts. The developed formulation is easy, effective and generic. Our approach was validated on both academic cases and on a complex industrial case.
incompressibility finite-strain logarithmic strains mixed finite element method