Numerical Modeling and Simulations of Twinning-Induced Plasticity Using Crystal Plasticity Finite Element Method

In the current work, a fully implicit numerical integration scheme is developed for modeling twinning-induced plasticity using crystal framework. Firstly, constitutive formulation of twin-based micromechanical model presented to estimate deformation behavior steels with low stacking fault energy. Secondly, discretizing equations through time backward Euler method. A sub-stepping algorithm and two-norm convergence criterion are used regulate step size stopping criterion. Afterward, implemented in finite element software ABAQUS as user-defined material subroutine. Finally, simulations executed observing validity, performance, limitations scheme. It observed that simulation results good agreement experimental observations maximum error 16% case equivalent stress strain. also found able well behavior, magnitude slip twin shear strains, volume fraction three different TWIP where point subjected tension compression.