工程爆破

2012, v.18;No.69(03) 17-20+4

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低密度射流对带壳炸药穿而不爆数值研究
NUMERICAL SIMULATION OF SHELLED EXPLOSIVE PENETRATED BUT NOT DETONATED BY LOW-DENSITY JET

孙华;王志军;王向东;
SUN Hua~1,WANG Zhi-jun~1,WANG Xiang-dong~2 (1.School of Mechatronic Engineering,North University of China,Taiyuan 030051,China; 2.Jinxi Industries Group Corporation,Taiyuan 030027,China)

摘要(Abstract):

基于用低密度射流对付带壳炸药,使其穿而不爆,从而为后级主射流侵彻主目标清除障碍的设想,提出了用低密度材料作为成型装药药型罩材料。利用有限元AUTODYN-2D程序对该药型罩形成聚能射流进行了数值模拟,并对射流侵彻不同面板、背板以及夹层炸药厚度的带壳炸药时,夹层炸药是否起爆进行了对比分析。结果表明:夹层炸药穿而不爆的压力阈值为7.09GPa,冲击起爆的压力阈值为8.02GPa。
Based on the idea that shelled explosive was penetrated but not detonated by using low-density jet,which cleared away barrier for latter main jet penetrating main target,the shaped charge liner made of low-density material was put forward.The finite element AUTODYN-2D program was applied to simulate the shaped charge jet formed by the shaped charge liner,whether the sandwich explosive was detonated or not was analyzed when the jet penetrated shelled explosive in different aspects such as panel,backplane and the thickness of sandwich explosive.The results showed that the pressure threshold was 7.09GPa when it was penetrated but not detonated,and the pressure threshold was 8.02GPa when it was detonated.

关键词(KeyWords): 低密度射流;带壳炸药;穿而不爆;数值模拟
Low-density jet;Shelled explosive;Penetration but not detonation;Numerical simulation

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作者(Authors): 孙华;王志军;王向东;
SUN Hua~1,WANG Zhi-jun~1,WANG Xiang-dong~2 (1.School of Mechatronic Engineering,North University of China,Taiyuan 030051,China; 2.Jinxi Industries Group Corporation,Taiyuan 030027,China)

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