Toward bullet’s residual velocity and plate’s stress contour under ballistic impact: An idealization of ship casualties under piracy

Abstract

Interactions during piracy can lead to dangerous situations, especially for hazardous material transport. This study aims to ensure mesh convergence’s effect on the projectile’s energy depletion after impact with the target plate assumed as an oil tanker wall. The simulation results are compared with experimental and numerical results from previous research conducted by Alwan et al. The comparison will produce an error value. In the previous study, the residual velocity was measured using a high-speed camera to measure the projectile’s velocity after impact using the experimental method. From the simulation results carried out using LS-DYNA software, the differences between mesh variations can be seen from the results shown, namely, the more negligible the mesh used, the higher the residual velocity and time required, while the smaller the mesh used, the lower the residual velocity.