The Numerical Simulation Study of Bullet-proof Performance of Array Ceramic Grains Bullet Resistant Material

The array ceramic grains bullet resistant material was designed and the bullet-proof performance of it was researched by simulation.When fragment penetrates the material in different places,the case of ceramic grains breaking is different from others,and the grains could break entirely or partly.In all case,the velocity of fragment can be reduced to 100m/s,and then the velocity falls down slowly,and below 40m/s at 0.1ms.It can offer information to optimize the material.