An infinitesimal element method of numerical analysis for the generation principle of linear shaped charge

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Journal of Vibration and Shock ›› 2017, Vol. 36 ›› Issue (8) : 121-124.

PAN Dekai,MA Feng,WANG Shushan

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Abstract

The liner shaped charge produced jet was studied.Key parameters to evaluate the performance of the jet,such as velocity distribution of material of liner,tip velocity of the jet and critical velocity were obtained.In addition,moving pattern and interaction of material sections of liner and the structural models of the jet was studied.Calculated result indicates that effective jet velocity of the liner shaped charge with small degree liner is over 550 m/s for steel target with general strength，the high speed section (v≥1 300 m/s) of the effective jet is made up by the top of the cover,medium speed section (1 000 m/s≤v<1 300 m/s) are made up by the central and middle higher parts of the cover,20% of the bottom of cover not taking part in forming the jet.

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linear shaped charge / infinitesimal element method / effective jet

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PAN Dekai,MA Feng,WANG Shushan. An infinitesimal element method of numerical analysis for the generation principle of linear shaped charge[J]. Journal of Vibration and Shock, 2017, 36(8): 121-124

References

[1] 隋树元,王树山编著.终点效应学[M].北京:国防工业出版社,2000.
[2]于骐.某破甲弹药型罩各微元破甲效率[J].华东工程学院学报,1978(3):119-125．
[3] 裴思行.聚能装药射流的结构模式研究[J].太原机械学院学报,1986(3)：97-102．
Pei Si-xing.A study for the jet constitutive mode of shaped charge[J].Journal of Taiyuan Institute of Machinery,1986(3):97-102.
[4] 侯秀成,陈智刚.成型装药射流速度梯度数值模拟[J].弹箭与制导学报,2009(6):115-117.
Hou Xiu-cheng, Chen Zhi-gang. Numerical simulation of jet velocity gradient of shaped charge[J]. Journal of Pro—jetties, Rockets, Missiles and Guidance,2009,29(6):115-117.
[5] 马峰, 王树山,李金柱.内部爆炸载荷作用下建筑物动态响应的三维数值模拟[J].弹箭与制导学报, 2004(2):37-39.
MA Feng，WANG Shu-shan , LI Jin-zhu. Numerical Simulation of the Dynamical Responding of Building Under Inner-Blast Loads. Journal of Projectiles, Rockets ,Missiles and Guidance[J], 2004(2):37-39.
[6] 毛亮, 姜春兰, 严翰新, 等. 可瞄准预制破片战斗部数值模拟与试验研究[J]. 振动与冲击, 2012, 31(13): 66-70.
MAO Liang, JIANG Chun-lan, YAN Han-xin, et al. Numerical simulation and experiment on amiable warhead of premade fragment[J]. Journal of Vibration and Shock, 2012, 31(13): 66-70
[7]Dobratz B.M, CrawfordP.C. "LLNL Explosives Handbook”UCRL-52997 Rev.2[M]. January 1985.
[8]北京理工大学八系 .爆炸及其作用:下册[M]．北京：国防工业出版社,1979．
[9]解永红,陈智刚,赵太勇.聚能装药药型罩作用机理的实验解析[J]．弹箭与制导学报，2004，24(1)：54-55．
Xie Yong-hong,Chen Zhi-gang,Zhao Tai-yong.Experiment analysis about the process of working shaped charge liner[J].Journal of Projectiles,Rockets,Missiles and Guidance,2004,24(1):54-55.