含能材料2012，Vol.20Issue(6)：710-714,5.DOI:10.3969/j.issn.1006-9941.2012.06.011
起爆点位置对网栅切割式MEFP成型的影响
Influence of Initiation Point Position on Formation of MEFP
摘要
Abstract
To study the influence of initiation point position on formation of circle-shaped multiple explosively formed projectile (MEFP), numerical simulation of the forming process of the circle-shaped MEFP was carried out with the ALE method using LS-DYNA, and the influence of the cutting reseau distance on radial dispersion angle was analyzed. Results indicate that such a charge structure can produce five pieces of sub-explosively formed projectile which has a definite mass, direction, and a velocity between 1600 m·s-1 and 2 400 m·s-1. Under fixed cutting reseau distance, with the increase of initiation point distance, the speed of MEFP increases,the radial dispersion angle of MEFP reduces gradually. The initiation point distance should be in a proper range from 0.56 to 0.89 times as long as Dk( Dk is the charge caliber) in order to form ideal sub-explosively formed projectile, and it has a best formation at 0.78 Dk.关键词
爆炸力学/多爆炸成型弹丸/切割网栅/起爆点/数值模拟Key words
explosive mechanics/ multiple explosively formed projectile( MEFP) / cutting reseau / initiation point/ numerical simulation分类
军事科技引用本文复制引用
臧立伟,尹建平,王志军..起爆点位置对网栅切割式MEFP成型的影响[J].含能材料,2012,20(6):710-714,5.基金项目
国防基础科研项目(批准号:k133040610090) （批准号:k133040610090）
