Large-deformation crystal plasticity simulation of microstructure and microtexture evolution through adaptive remeshing

The capability of high-resolution modeling crystals subjected to large plastic strain is essential in predicting many important phenomena occurring polycrystalline materials, such as microstructure, deformation localization and in-grain texture evolution. However, due the heterogeneity polycrystals, simulation mesh gets distorted during deformation. This distortion deteriorates accuracy results, after reaching high local levels, it no longer possible continue simulation. In this work, two different adaptive remeshing approaches are introduced for simulating 3D polycrystals with resolution under periodic boundary conditions. first approach, a new geometry created, then restarted which initial state set based on last that had been reached. second smoothened by removing part deformation, continued finding equilibrium smoothed geometry. method highly efficient conducting large-deformation simulations. On other hand, method’s primary advantage can overcome periodicity issues related shear loading, be used conjunction complex loading merits methodologies demonstrated using full-field simulations performed dislocation-density-based crystal plasticity model Interstitial free (IF-) steel. Particular emphasis put studying effect meshing. algorithms presented have implemented into open-source software package, DAMASK (Düsseldorf Advanced Material Simulation Kit).