|Table of Contents|

Effect of Metal Bar on Formation and Penetration of EFP Fragment

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

Issue:
2009年05期
Page:
586-591
Research Field:
Publishing date:

Info

Title:
Effect of Metal Bar on Formation and Penetration of EFP Fragment
Author(s):
LI Wei-bing1WANG Xiao-ming1LI Wen-bin1WANG De-gong2
1.School of Mechanical Engineering,NUST,Nanjing 210094,China;2.The 53rd Institute of China North Industries Group Corporation,Jinan 250031,China
Keywords:
explosively formed penetrator fragments metal bars numerical simulation
PACS:
TJ410.52
DOI:
-
Abstract:
The explosively formed penetrator(EFP) fragment mode is formed by attaching metal bar to the front of a warhead.Through LS-DYNA simulation procedure,the influence of a metal bar on the formation and penetration of EFP fragments is researched,and the effect of the position and framework of a bar on the velocity and spray pattern of EFP fragments is gained.The results show that: when the unit grid’s size of bar is 0.2 times of the charge caliber,and the distance between bar and liner is 1/12 times of the charge caliber,it can form EFP fragments with good velocity and spray pattern.The structure of a metal bar is optimized and tested.The simulation results are in good agreement with the experimental data.The result can offer reference for the further study of multimode shaped charge.

References:

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Last Update: 2012-11-19