活性射流侵爆耦合毁伤效应分析

为分析活性射流侵爆耦合毁伤效应，采用实验与理论相结合的方法对活性射流侵彻过程中爆炸效应的变化进行了研究.利用测压罐实验得到了活性射流侵彻不同厚度钢靶后的内爆超压特性，分析了侵彻靶板厚度对侵彻形貌以及内爆超压峰值的影响.并结合虚拟原点理论，建立了活性射流微元侵爆分析模型.结果表明，活性射流在测试罐内形成的超压具有峰值较大、作用时间较长、空间上分布均匀的特性，并且成型活性射流中存在未完全反应部分；活性射流的密度衰减使后续射流侵彻单位长度所消耗的射流质量大大增加，从而造成靶后内爆超压峰值随侵彻深度增加呈现抛物线衰减.利用模型可较好地描述活性射流作用目标时爆炸效应与侵彻深度之间的关系，为分析活性射流毁伤机理提供了帮助. 

Analysis of Pentration and Blast Combined Damage Effects of Reactive Material Jet

In order to analyze the combined damage effects of reactive material jet penetration and blast, the change of blast effect during reactive material jet penetration was studied by combining experimental research and theoretical analysis. Vented chamber calorimetry (VCC) experiments were carried out to investigate the characteristics of implosion overpressure after the reaction material jet penetrated steel targets of different thicknesses, and the influence of the thickness of the penetration target plate on the penetration morphology of the reaction material jet and the peak value of the implosion overpressure was analyzed. Based on the virtual origin theory, a micro-element model was developed to describe the process of reactive material jet explosion. The results show that the overpressure formed by the reaction material jet in the tank has the characteristics of large peak value, long action time and uniform spatial distribution, and there is an incomplete reaction part in the forming reaction material jet. The density attenuation of the reactive material jet greatly increases the mass of the jet consumed by the subsequent jet penetrating per unit length, resulting in a parabolic attenuation of the implosion overpressure peak with increasing penetration depth. The model can be used to describe the relationship between the blast effect and the penetration depth when the reactive material jet impacts the target, which provides help for analyzing the damage mechanism of the reactive material jet.