Spatially Resolved Through-Process ModellingWednesday (28.09.2016) 16:45 - 17:00 Part of:
Through-process modeling of the thermo-mechanical treatment of metallic material requires the coupling of thermal, chemical, and mechanical models.Here we present a fully coupled model with the aim simulate these multi-physics problem by coupling phase fields for the evolution of orientation, chemical composition, and temperature to a dislocation based crystal plasticity model.
Implemented in the multi-physics framework DAMASK (Duesseldorf Advanced Materials Simulation Kit), we make use of a fast spectral method formulation to solve the set of coupled equations to get the solution for a representative volume element. Under the assumption of a fully solidified initial microstructure that do no exhibit phase transformation (as seen in steels for elevated temperatures), this model is able to simulate the thermomechanical treatment during production as well as the loading during service.
Results will be compared to a partner project working on a similar aim focusing on a much faster, global model that does not resolve the microstructure spatially.