<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si178.svg" display="inline" id="d1e2925"><mml:mi>ρ</mml:mi></mml:math>-CP: Open source dislocation density based crystal plasticity framework for simulating temperature- and strain rate-dependent deformation

This work presents an open source, dislocation density based crystal plasticity modeling framework, ρ-CP. A Kocks-type thermally activated flow is used for accounting the temperature and strain rate effects on crystallographic shearing rate. Slip system-level mobile immobile densities, as well slip backstress, are internal state variables representing substructure evolution during plastic deformation. fully implicit numerical integration scheme presented time of finite deformation model. The framework implemented integrated with source element solver, Multiphysics Object-Oriented Simulation Environment (MOOSE). Example applications model demonstrated predicting anisotropic mechanical response single polycrystalline hcp magnesium, cyclic fcc OFHC copper, bcc tantalum. Simulations realistic Voronoi-tessellated microstructures Electron Back Scatter Diffraction (EBSD) to highlight model’s ability predict large misorientation development