Interface Defeat of Long-Rod Projectile Impacting on Ceramic Targets

Abstract

In this chapter, the existing tests of interface defeat for long-rod projectile impacting ceramic targets carried out from 2000 to 2011 are firstly reviewed. Then, by modeling the projectiles and ceramic targets with the SPH particles and Lagrange finite elements, the above tests are numerically reproduced. Furthermore, the influences of projectile characteristics, constitutive models of ceramic, buffer, and cover plate characteristics, and the prestress of target on the transition velocity and dwell time are systematically discussed. Finally, a modified model to predict the upper bound of the transition velocity (dwell to direct penetration) is proposed.