Modeling and Simulation of SS 316 Stainless Steel for LCF Behaviour

Abstract

This paper deals with Finite Element simulation to characterize the LCF behavior of SS316 stainless steel. Calibration and truing of LCF parameters of the material SS316 are done from the experimental results. Non linear version of Ziegler kinematic hardening material model is used to address the stable hysteresis cycles of the material. Cyclic hardening phenomenon in the transition cycles from virgin state to saturation state is addressed by introducing cyclic hardening in the material model. The elastic plastic FE code ABAQUS is used for finite element simulation of LCF behavior where in ABAQUS material model is plugged in. In this work the plastic modulus formulation with zeigler kinematic hardening rule and exponential isotropic hardening rule have been used. Loop areas have been generated based on the cyclic elastic-plastic stress-strain response in order to identify the fatigue damage parameter. The cyclic plastic stress-strain responses were analyzed using the incremental plasticity theories and the results obtained from FE simulations have been compared with the experimental results at different strain amplitudes.