THE DEPTH MODEL OF THE CRATERING STAGE OF SHAPED CHARGE JET PENETRATING INTO TARGETS

Shi Jinwei, Jiang Jianwei, Wang Shuyou, Men Jianbing, Li Mei
1.287 280

Abstract


To get the depth model of cratering stage of shaped charge jet penetrating into targets, the penetration process on the target is studied through numeral simulation and experiment. Parameters of cratering stage in penetration into different targets, which are formed from TNT and LX-14 charge with the respective calibers of 56mm and 82mm, are obtained by numerical simulation. The depth model of the cratering stage of shaped charge jet penetrating into targets is built by data fitting. Both of the COMP B charge simulation and experimental validation are conducted. The results show: the error between the calculated value and simulation value based on depth model is 4.6% and the error between theoretical value and experiment value is 4.8%, which indicates that the model can be used to calculate the depth of the cratering stage of jet penetrating into targets.

Keywords


shaped charge jet; numerical simulation; cratering stage; penetration length; penetration diameter

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References


Liu Mengxia. The Study on Penetration of Shaped Charge Jet into Disconnected Target[A]. Newsroom. The Corpus of Penetration for Shaped Charge[C]. Xi’an: The Ammunition Academy of China Weapons Industry Academy, 1984:68-73.

I.Horsfall, E. Petrous, S.M.Champion. Shaped Charge Attack of Spaced and Composite Armor[C], 23rd International Symposium on Ballistics, Tarragona, Spain, April 17-20, 2007,pp.1281-1288.

Liang Zhengfeng, Hu Huangxing, Sun Jian, etal. Numerical Simulation and Experimental Study on the Effect of Jet Penetrating into Disconnected Targets[J]. Explosion and Shock Waves, 2002,22(4):381-386.

Chen Shaohui, Lei Bin. Depth model and numerical simulation research of shaped charge jet penetrating the disconnected target[J]. Ordnance Material Science and Engineering,2011,34(1): 35-38.

Zhang Junkun, Li Jinming, Xu Xingchun. Simulation Research on Penetration Hollow in Jet Penetration Target[J]. Journal of Ordance Engineering College, 2014,26(5):23-26.

Wang Zhenyu. The destroy mechanism study of plate structure under shaped charge[D]. Harbin Engineering University,2006:33-34.

Sun Gengchen, Tan Qingming, Zhao Chengxiu, etal. Cratering experiments with hypervelocity impact upon thick metallic targets[J]. ACTA ARMAMENTARII, 1994,1:27-31.

Ma Xiaoqing, Han Feng. High speed impact dynamics[M]. Bei Jing: science press,1998.

Wu Haijun, Chen Li, Wang Jiangbo, etal. Numerical Simulation on Reactive Armor Disturbing Jet[J]. Transaction of Beijing Institute of Technology,2006,26(7):565-605.

Hou Xiucheng, Jiang Jianwei, Chen Zhigang. Numerical Simulation and Conversion Rate of Jet From a Shaped Charge[J].Chinese Journal of Explosives & Propellants,2012, 35(2):53-57.

ESER GUREL. Modeling and simulation of shaped charges[D]. Middle East Technical University, ROKETSAN, 2009.

Zheng Zhemin. Several problems of jet penetration[J]. Acta Armamentarii,1980,1(1):13-22.(in chinese)

Xiao Qiangqiang, Huang Zhengxiang, Gu Xiaohui. Engineering Research on Radial Crater Growth for the Penetration in Concrete Target by Shaped Charge jet[J].Acta Armamentarii,2010,31(4):464-468.