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Acta Armamentarii ›› 2014, Vol. 35 ›› Issue (2): 170-175.doi: 10.3969/j.issn.1000-1093.2014.02.005

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Numerical Simulation and Experimental Study on Explosion-proof Structure Design of Tandem Shaped Charge

XU Hao-ming, GU Wen-bin, LIU Jian-qing, ZHAO Chang-xiao, XU Wei-you, HU Ya-feng   

  1. (College of Field Engineering, PLA University of Science and Technology, Nanjing 210007, Jiangsu, China)
  • Received:2013-05-07 Revised:2013-05-07 Online:2014-03-25
  • Contact: XU Hao-ming E-mail:xuhaoming2012@sina.com

Abstract: In order to solve the optimal matching issue of penetrating hole depth and aperture on fast perforating into a hunk obstacle, a new tandem shaped charge structure is proposed, which uses two same structures of explosively formed projectile (EFP) shaped charge. The effect of explosion-proof structure on the penetration ability of tandem EFP charge is analyzed by using finite element software, and the associated experiment of tandem EFP penetrating into a steel target is conducted. The results show that the shape of explosion-proof body has an important effect on the penetration ability of postpositive charge of tandem EFP, and the whole penetration depth of optimized tandem EFP and the penetration depth of postpositive charge are increased by 23% and 35%, respectively, greatly improving the efficiency of postpositive EFP charge.

Key words: ordnance science and technology, tandem explosively formed projectile, explosion-proof body, structure design, experimental study, numerical simulation

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