2007, Volume 9, Issue 8
Strategic Study of CAE >> 2007, Volume 9, Issue 8
Calculation Method of Explosively Formed Projectile Velocity
Deparment of Modern Mechanics, University of Science and Technology of China, Hefei 230026, China
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Abstract
From the theory of instantaneous expansion of detonation product and momentum conservation, this paper obtains velocity calculation model of explosively formed projectile (EFP) and the model is revised due to the influence of the ratio of charge altitude to charge diameter. This paper calculates the velocities of EFPs formed by large apex angle liner and sphere liner through the velocity calculation model and the results are consistent with the numerical simulation and experiment results. This velocity calculation model is applicable in engineering.
Keywords
explosively formed projectile (EFP) ; instantaneous expansion of detonation product ; momentum conservation ; EFP velocity
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References
[ 1 ] 李必红,鲁艳红,陈寿如,等,基于瞬时爆麦EFP成型速度的分析及应用研究[J].采矿技术,2005,5s(3):87~-89
[ 2 ] 孙承纬,卫玉章,周之奎,应用爆轰物理[M].北京:国防工业出版社,1999.557-634
[ 3 ] 慈明森,爆炸成形弹丸优化设计[J].弹箭技术,1994,(2):1-5 link1
[ 4 ] 周翔,龙源,岳小兵.76mm口径EFP成形过程数值模拟及影响因素研究[J].弹道学报,2003,15(2):59-63 link1
[ 5 ] Weimann K,Blache A,Caure M,et al.Terminal ballistics of EFPs with high L/D-ration[A].17th Intermational Syemposium.of Ballistics[C].Midrand,South Africa:Intermational Ballistics Committee.1998.281-287
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