FEM STUDY OF POLY-CRYSTALLINE MICROSTRUCTURE

Abstract

The work done in “FEM study of Poly-crystalline Microstructure” determines the effects of grain size variation on the properties of Austenitic stainless steel (AISI 304) such as Youngs Modulus and Yield strength. Open-source software package Neper is used to generate artificial 3D Polycrystalline Microstructure and another open-source software FEPX is used to simulate the generated microstructure by applying boundary condition and specifying target stress and strain. Youngs Modulus and Yield strength is closely related to mean grain size as well as standard deviations of grain distribution. Background of FEPX software works with coupled Crystal Plasticity theoretical frameworks and finite element Analysis to simulate the Poly-crystalline microstructure. Crystal plasticity properties of Austenitic steel (AISI 304) is used in this study for simulation (using FEPX) of synthetic 3D RVE (generated using Neper).