Comparison of CPFEM and spectral solution methods in prediction of strains near grain boundaries in a uniaxially loaded oligocrystalline tensile specimen

"In this work, we have built upon the work done by Lim et al 2014, to determine whether the discrepancy in experimentally observed grain boundary strains and those calculated by Crystal Plasticity Finite Element Method (C.P.F.E.M.) is a result of inherent shortcomings of Finite Element Method (FEM). We also determine if a spectral solution method would prove helpful and relatively more accurate at predicting strains near these grain boundaries." -- Abstract.