Anti-penetration Performance Test and Structural Optimization Design of Multilayer Heterogeneous Composite Target-plate

Abstract

For the optimal design of multilayer heterogeneous composite target structure,the test analysis of two structures resistant to 14.5 mm armor-piercing projectile was carried out,namely the structure of 10 mm alumina ceramics/10 mm aramid plate/6 mm 616 armor steel and the structure of 10 mm alumina ceramics/6 mm 616 armor steel/10 mm aramid plate. The projectile penetrating into the composite target plate under the same working conditions was simulated. Based on the verification of the numerical model and the formula uniform design method,a regression model for the equivalent mass protection-efficiency of the composite target plate structure was established under the same areal density. The influence of the thickness coefficient of each layer on the protective performance of the composite target plate was analyzed,and the optimization design of the structure was carried out. The results show that the composite target plate with an areal density of 9.748 g/cm2 has an optimal structure of 6.5 mm ceramic plate/1.8 mm aramid plate/9.1 mm armor steel. The reliability of the optimized design method was verified through experiment.