Research on structural design and anti-penetration performance of ceramic composite armor

Abstract

Two types of composite armor were designed (Composite armor I alumina ceramic/Kevlar/616 armored steel; Composite armor II alumina ceramic/616 armored steel/Kevlar). Through penetration tests and numerical simulations, the anti-penetration performance and anti-penetration mechanism of the composite armors were studied, and the influences of material arrangement on its anti-penetration performance were discussed. The results show that the established finite element models can reliably simulate the penetration process of composite armors. The failure modes of Kevlar and 616 armored steel in composite armor I are tensile failure and spalling damage, respectively. The failure mode of Kevlar and 616 armored steel in composite armor II is shear failure. The shear failure of 616 armored steel and Kevlar is a low energy consumption damage mode. Therefore, the structure form of composite armor I can give full play to the anti-penetration performance of the material, and the anti-penetration performance is better than that of composite armor I.