Numerical Simulation of Penetration Resistance of Ceramic Composite Target.

Abstract

The numerical simulation of penetrating the ceramic composite targets was carried out by using the nonlinear dynamic software AUTODYN-2D and the SPH-Lagrange model. The deformation process of the composite target and the residual velocity of the projectile were studied. The protective performance of ceramic composite targets with structural steel, armored steel and aluminum alloy as backplane materials were analyzed respectively. The effect of initial velocity variation on the anti-penetration performance of aluminum alloy backplane ceramic composite target was studied. The effect of thickness configuration on the penetration resistance of the composite target was also analyzed in the condition of the same areal density. The results show that the residual velocity is the smallest when the aluminum alloy is used as the backplane material. The residual velocity of the projectile is linearly related to the initial velocity. When the areal density is the same, the thickness configuration affects the protective properties of the composite target. Therefore, the anti-penetration ability of the ceramic composite target can be changed by altering the backplane material and the thickness configuration. This conclusion provides a strong reference for composite target design.