A numerical study of ogive shape projectile impact on multilayered plates

Abstract

This investigation reports the numerical analysis of multilayered plates subjected to high velocity projectile impact. The numerical model is used to explain the residual velocity with respect to the time and study its effect on multilayered plates made with different materials. It is observed that impact velocity reduces significantly while using a layered combination of materials. The projectile is an ogive nose shape and it is modeled as 3D rigid body wherein the target plates are modeled as 3D deformable solids. Based on this study, effect of projectile velocity on deformation of layered plates is explained using sophisticated material model which is found to be the key to the success of such simulations. Mechanism of deformation and relation between striking and residual velocities is presented.