An engineering computing method for the velocity of explosively-formed-projectile(EFP) based on the law of energy conservation

ZHOU Xiang; LONG Yuan; YUE Xiao-bing; TANG Xian-shu

doi:10.11883/1001-1455(2005)04-0378-04

Volume 25 Issue 4

Dec. 2014

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Article Navigation > Explosion And Shock Waves > 2005 > 25(4): 378-381

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ZHOU Xiang, LONG Yuan, YUE Xiao-bing, TANG Xian-shu. An engineering computing method for the velocity of explosively-formed-projectile(EFP) based on the law of energy conservation[J]. Explosion And Shock Waves, 2005, 25(4): 378-381. doi: 10.11883/1001-1455(2005)04-0378-04

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An engineering computing method for the velocity of explosively-formed-projectile(EFP) based on the law of energy conservation

doi: 10.11883/1001-1455(2005)04-0378-04

1.
Engineering Institute of Engineer Corps, PLA University of Science and Technology, Nanjing 210007, Jiangsu, China;
2.
State Key Laboratory of Prevention and Control of Explosion Disaster, Beijing Institute of Technology, Beijjing 100081, China

Publish Date: 2005-07-25

Abstract

Abstract

In order to exactly predict the velocity of EFP, its formation process is divided into a loading phase by high explosives and a self-deforming phase. It is assumed that the process ends at the time when the whole liner has melted, and the deformation energy consumed by the liner is equal to its melting energy. Accordingly, a velocity formula of EFP is proposed based on the law of energy conservation. The results are in good agreement with those from an experiment and a numerical simulation, demonstrating the applicability of this formula in engineering computation.
- mechanics of explosion,
- projectile velocity formula,
- law of conservation of energy,
- EFP

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