爆炸冲击波与防弹衣相互作用的数值模拟
Numerical Simulation on the Impact of Explosion Shock Wave on Bullet-Proof Vest

为研究穿戴防弹衣情况下爆炸冲击波对人体的作用模式，建立了爆炸冲击波冲击防弹衣的2维和3维数值模型.借助Eulerian和Lagrangian的完全耦合方法，模拟构建爆炸冲击波与防弹衣相互作用所形成的冲击波流场.对冲击波流场的分布情况进行分析，包括冲击波在防弹衣表面的反射，在防弹衣边缘绕射以及在防弹衣与人体之间的传播情况.研究结果表明，在穿戴防弹衣情况下，爆炸冲击波与防弹衣发生相互作用，形成的复杂波系会加重对人体的伤害.
In order to study the impact of explosive shock wave on human body wearing a bullet-proof vest, the 2 and 3-dimensional numerical models of the blast wave impact on the bullet-proof vest were established. With the coupling of the Eulerian and Lagrangian grids, the forming explosion field due to the interaction between the shock wave and the bullet-proof vest was simulated. This research presented an analysis of the shock wave propagation process, including the reflection on the surface of the vest, the diffraction on the edge of the vest and the propagation process between the body and the bullet-proof vest. The simulation result indicates that the damage of shock wave on the human body is increased because of the interaction between the shock wave and the bullet-proof vest