Comparison of ballistic resistance of layered and gradient barriers to impact

A direct numerical simulation of the process of deformation and damage of model heterogeneous and gradient media has been carried out. To compare the armor resistance of complex barriers, direct numerical simulation was used. For barriers made of various combinations of mild steel and B4C ceramics with equal volumetric concentrations, ballistic curves of their resistance to impact of the projectile of solid steel were built. In the numerical experiment, it was found out that heterogeneous and gradient barriers had an advantage over the two-layer barrier (B4C ceramics + steel) at the impact speeds exceeding 650 m/s.