Determination of Mechanical Response and Johnson-Cook Damage Parameters of 17-4 PH Stainless Steel Using FEM

The present work investigates the mechanical responses of additively manufactured 17-4 PH Stainless Steel systematically using finite element method (FEM). Different simulations of tensile tests at room and elevated temperatures are performed on smooth and notched specimens for calculating the parameters of the Johnson-Cook material and damage model. The tensile strength of the 17-4 PH SS alloy notch bar is higher than the smooth bar at room temperature. ABAQUS (Explicit) is used for all FE calculations. Experimental data was used as input to perform all the elastic–plastic simulations in both 2D and 3D through the ABAQUS 6.14 software. The observed simulation results were correlated with the available literature. Strain rate and temperature dependent mechanical properties of AM 17-4 PH stainless steel in different processing conditions are also investigated in this study.