针对破片式战斗部对部件的侵彻概率计算中比动能公式中未考虑破片姿态等因素改变对部件侵彻概率影响问题,采用相似理论与有限元仿真软件AUTODYN相结合方法,构建钨球破片对部件侵彻效应的分析模型,并安排试验程序进行数值模拟,建立了考虑入射角度等因素的比动能公式。结果表明考虑入射角度等因素得到的部件侵彻概率相比原有比动能公式计算得到的结果小,对装备部件毁伤规律研究具有一定指导意义。

In order to solve the problem of high cost and high risk in the field damage test of fragmented warhead, which does not consider the influence of fragments’ deformation and attitude on the damage effect of fragmented warhead components, and the problem of high cost and high risk in the field damage test under the actual environment, an analysis model of the damage effect of tungsten sphere fragments on components is constructed by using similarity theory, and the numerical simulation is carried out by AUTODYN software. The results show that the damage probability obtained by considering the incident angle and other factors is smaller than that by traditional methods, which has a strong guiding significance for the study of the damage law of equipment components.