Anisotropic damage with the MCR effect coupled to plasticity

A model framework, presented in [Int. J. Numer. Meth. Engng., 54 (10) (2002) 1409] for anisotropic damage coupled to inelastic deformation is here extended to include the microcrack-closure-reopening (MCR) effect. Key ingredients are the concept of the effective undamaged configuration and the assumption of energy equivalence. The MCR effect is modelled with the aid of projection tensors that extract the positive part of the elastic strain. A prototype model based on the von Mises yield surface with linear mixed proportional and kinematic hardening is then elaborated on, and some typical results are shown for monotonic as well as cyclic loading.