Void growth simulations in single crystals

The growth and coalescence of microvoids leading to ductile failure in single crystals is simulated using the finite element method. Finite deformation, rate dependent, crystal plasticity theory is used in the context of 2D plane strain models. The details of material failure at the microscale and macroscale are investigated under variation in a range of parameters including void volume fraction, loading state and lattice structure and orientation. Remeshing is used to improve accuracy of results. Results are compared with those produced by models based on other constitutive theories and experimental observation.