A three-dimensional cohesive-frictional grain-boundary micromechanical model for intergranular degradation and failure in polycrystalline materials
A 3D model for intergranular failure in polycrystalline microstructures is proposed. It is based on a grain boundary integral formulation of the microstructural problem. Intergranular damage is modeled using an irreversible frictional-cohesive law. Frictional contact analysis is used to model microcracking evolution after failure. It is a step towards multiscale modeling of degradation/failure in PC materials.
polycrystalline materials intergranular failure computational micromechanics cohesive-frictional laws boundary element method