RAPID FRACTURE OF LAYERED SHIELDS BASED ON Al - Si_3N_4 COMPOSITE MATERIAL

摘要

Structures of anti-bullet shields with an armor layer of an Al - Si_3N_4 composite material based on aluminum alloys AK5M2 and AL-23-1 reinforced by a porous Si_3N_4 ceramic formed from the components are considered. The effects of the amount of Si_3N_4 in the composite material, the thickness of the components in the ceramics, and the size proportions in the structure are studied. Shields of layered and layered-lattice types are shown to have high bullet resistance.