破片和冲击波复合作用下靶板毁伤仿真

Damage Simulation of Target Metal Plate by Fragments and Shock Waves

为了研究目标在破片和冲击波复合作用下的毁伤情况,应用有限元动力分析软件ANSYS/LS-DYNA,建立破片和冲击波复合作用下靶板毁伤模型。将两者作用分开研究,重点研究破片对金属靶板毁伤形成沟槽的前提下冲击波的毁伤作用效果,即简化了模型又保证了仿真精度,弥补了以往只以穿孔等效破片毁伤效果的不足,增强了模型的通用性,为战斗部设计、毁伤评估和目标防护研究提供参考。

Using the finite element analysis software ANSYS/LS-DYNA,the damage model of the target metal plate under the attack of fragments and shock waves is built in order to study the damage of target attacked by those two mutilate elements. The damage action is modeled by separating the fragment and shock wave loading. The damage effect of the shock waves on the metal plate with the groove resulted from the attack of fragments is mainly studied,which makes the model simple and ensures the simulating precision. The versatility of the model is enhanced to make up for the deficiency of the previous researches in which the damage effect of the fragments is equivalent to holes. The simulation results provide important reference for the warhead design, the target damage evaluation and protection research.