Numerical Simulation of Residual Stress Distribution Using LS- DYNA on Shot Peening Process

Abstract

In the following mini-project, we studied the measurement of compressive residual stress in the material, Al 2024, produced due to the shot peening process and also did the literature review for the optimization of process parameters of shot peening and compressive residual stress formation. The numerical simulation and modelling were done using the software, LS DYNA. We, first, carried out the literature review to learn about the work done in the area. To determine the compressive residual stress, we used LS DYNA to create model. We set the parameters of the model according to the properties obtained by the Johnson Cook Material Model for Al 2024 and used the properties of Stainless Steel for the shot. We carried out the experiment for three different velocities of 50m/s, 100m/s and 150m/s. Thus, we carried out the numerical simulation based on these conditions in LS DYNA. The LS DYNA PrePost was used to obtain the results.