Research on the Skirt Tail Explosively Formed Projectile Stable Shaping Technology
W. Li, X. Wang, W. Li, K. Chen
Nanjing University of Science and Technology, Nanjing, 210094 China
Keywords: формируемый взрывом снаряд, устойчивость полета, хвостовая юбка, лайнер, численное моделирование, explosively formed projectile (EFP), flight stability, skirt tail, liner, numerical simulation
Abstract
The effect of the arc-cone liner configuration parameters on explosively formed projectile (EFP) flight stability is studied experimentally. The effect the liner edge structure on the EFP formation is computed numerically. The results show that an EFP formed by a liner whose thickness is 0.046 times the charge caliber has improved flight stability and can perforate a steel armor 0.5 times the charge caliber thick in the case of large stand-off distances. A good tail skirt EFP can be formed by choosing appropriate parameters: the liner-to-charge diameter ratio in the interval 0.96÷0.98, the liner edge thickness equal to 0.0020÷0.0025 times the charge caliber, and the liner edge chamfer of 45÷50°.
DOI: 10.1134/S0021894416050175
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