Numerical analysis of damage evolution for materials with tension-compression asymmetry

In this contribution, a fully coupled continuum damage model with elasto-plastic Cazacu's orthotropic plasticity criterion has been implemented. The coupling between damaging and material behaviour is accounted for within the framework of Continuum Damage Mechanics (CDM). The closest point projection methods (CPPM) are used to implement the continuum damage constitutive model in an implicit quasi-static finite element environment to update stress and state variables. Finite element simulation of damage evolution and fracture initiation in ductile solids is investigated. The results obtained are compared against both numerical and experimental results available in the literature and good agreement is found between them.