基于SPH-FEM方法的半球形聚能装药破甲特性研究

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振动与冲击 ›› 2016, Vol. 35 ›› Issue (14) : 71-76.

论文

张之凡1 李兵2 王龙侃1 张阿漫1

作者信息 +

Penetration characteristics of hemispherical shaped charge based on SPH-FEM method

ZHANG Zhi-fan 1 LI Bing 2 WANG Long-kan1 ZHANG A-man1

Author information +

文章历史 +

摘要

为了研究杆式射流的形成及破甲过程，基于SPH-FEM方法建立半球形聚能装药模型，对半球形聚能装药起爆后形成金属射流及射流穿透双壳的过程进行仿真模拟。通过对射流形成过程、速度衰减规律以及壳体破口形成过程进行分析，得到以下结论：在半球形聚能装药的爆轰作用下，药型罩被高压冲击变形继而形成了高速的金属射流；射流头部最大速度可达约4174 m/s ；射流在击穿双壳的过程中会发生断裂形成射流断裂块，第一层壳在被击穿过程中，经历了冲塞、凹陷等过程，第二层壳直接被射流穿透，之后不断地被射流断裂块击穿。整个计算对半球形聚能装药的工程设计具有一定的参考价值。

Abstract

In order to investigate the formation of Rod-liked Jet and the penetration properties, a SPH-FEM model of hemispherical shaped charge is established in this paper to simulate the formation of metal jet and its pene-tration onto double-shells. The results are given based on the analysis of the formation of shaped charge jet, velocity and crevasse. It shows that a metal jet with a high speed is generated after the liner gets deformation under the detona-tion of shaped charge; the maximum velocity of jet head reaches about 4174 m/s; after the first layer of shells is pene-trated by the jet, it experiences plug failure, dent and petaling etc. In addition, the jet breakup is generated before the jet penetrates the second layer of shells and the initial crevasse occurs. The calculation and analysis above may be helpful for the application to design the shaped charge.

导出引用

张之凡1 李兵2 王龙侃1 张阿漫1. 基于SPH-FEM方法的半球形聚能装药破甲特性研究[J]. 振动与冲击, 2016, 35(14): 71-76

ZHANG Zhi-fan 1 LI Bing 2 WANG Long-kan1 ZHANG A-man1. Penetration characteristics of hemispherical shaped charge based on SPH-FEM method[J]. Journal of Vibration and Shock, 2016, 35(14): 71-76

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