Ballistic performance of Polycarbonate and Polymethyl methacrylate under normal and inclined dynamic impacts

Abstract

impact angle. The results are analysed in terms of failure performance, depth of penetration (DOP), penetration path (POP), and residual velocity. The numerical analysis is further developed to investigate the projectile's impact velocity effects on the DOP and its direction. The results showed that the DOP changes linearly with the impact velocity, where the POP is as yet nonlinear. Extended Drucker Prager Strength (EDP) material model with the failure criteria of principal stress and tensile pressure failure is used to simulate the brittle-ductile PMMA target's performance under dynamic impact. Shock Hugoniots equation of state with plastic strain failure is conducted to affect PC plates' tensile performance.

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