为消除反应装甲对主射流的干扰，提高破甲弹侵彻爆炸式反应装甲（ERA）的能力，利用非线性动力学分析软件AUTODYN-2D对特氟龙、尼龙、树脂玻璃等低密度材料射流冲击起爆带壳B炸药进行了仿真研究，并分别实现了高速下对带壳B炸药的穿而不爆。仿真发现：树脂玻璃表现出更佳的延展性，形成的射流形态更好，可在更高的速度下实现对ERA的穿而不爆，可作为反ERA聚能装药药型罩的优选材料；利用u2d阈值的测量方法作为射流冲击起爆的判据时，这几种射流的起爆阈值基本一致，高出Held提出的阈值约12.5%。
In order to rule out reactive armor’s interference with main jet,increase the penetration ability of high explosive antitank projectile into explosive reactive armor,numerical simulations of teflon,nylon,plexiglas jet initiating B explosive with shell were carried out by AUTODYN?2D software. And penetration?but?not?detonation with high velocity of shelled B explosive was achieved,respectively. The results indicate that plexiglas shows better ductility and perfect forming state and its jet can penetrate shelled explosive without detonating at higher velocity. With the measurement criterion of initiating value u2d brought forward in the article,the initiating values u2d of these jets are almost same and about 12.5% higher than those put forward by Held.
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