Non-associated viscoplasticity coupled with an integral-type nonlocal damage model for mineral filled semi-crystalline polymers
Non-associated viscoplastic model coupled with nonlocal damage at finite strains for mineral filled semi-crystalline polymers. Model able to reproduce the non-isochoric deformation with mesh-independent results despite of the strain-softening. Hypoelastic formulation using the logarithmic corotational integration of the stretching tensor. Implementation of the nonlocal formulation in a commercial finite element code achieved in a simple manner. Mesh independent results arising from finite elements simulation close to experiment in term of local strain evolution.
non-associated viscoplasticity integral-type nonlocal damage mineral filled semi-crystalline polymer finite strain strain softening