Research on impact resistance of ceramic matrix composites

Abstract

The honeycomb structure has been used in the field of bulletproof materials, but there is little research on the impact resistance of ceramic honeycomb materials. In this res earch, ceramic matrix composite plates were prepared by using square-hole honeycomb ceramics and filling the honeycomb structure with second-phase reinforcing materials. Using LS-DYNA software to carry out numerical simulation analysis of the two groups of impact processes, to investigate the improvement effect of the composite material compared with the impact resistance of the honeycomb ceramic material, and at the same time, the 7.62 mm ballistic gun launcher was used to test the impact of composite plate and ceramic matrix on the honeycomb ceramic control target. The results show that the honeycomb ceramic material will break prematurely when it is impacted by the projectile at high speed, and the impact resistance is poor. The toughness of ceramic matrix composites filled with reinforcing materials is enhanced. Compared with honeycomb ceramic materials, the energy absorption efficiency of the composite material under the same thickness is increased by 115.6%, and the energy absorption density is increased by 52.3%, which improves the poor brittleness of ceramic materials.