爆破器材2013，Vol.42Issue(2)：17-20,4.DOI:10.3969/j.issn.1001-8352.2013.02.005
偏心亚半球成型装药结构的数值模拟
Numerical Simulation of Shape Charge with an Eccentric Sub-hemisphere Liner
摘要
Abstract
In order to study the effect of initiation methods, heights and radius of liner on the formation of jet, LS -DYNA software was used to numerically simulate and analyze the formation process of jet in this paper. The research shows that, for the eccentric sub - hemisphere charge structure, it proved to be better when the shape of detonation wave under annular initiation matches the outside shape of the liner. The linear forms the explosively formed projectile, when the ratio between height and diameter (H/A) <0. 2. The linear forms the rod projectile, when the ratio H/A≥0. 2. The greater H/A value, the more slender the projectile body could be, and the greater the speed difference between the head jet and the tail jet comes to be. There is the trend that the linear forms the high - speed jet and the low speed slug. The formed jet has the good shape and high speed, when the ratio between radius and diameter (R/A) ≥1. 5.关键词
爆炸力学/偏心亚半球/射流/数值模拟Key words
explosion mechanics, eccentric sub - hemisphere, jet, numerical simulation分类
信息技术与安全科学引用本文复制引用
姚志华,李德战,付庆海,吴川..偏心亚半球成型装药结构的数值模拟[J].爆破器材,2013,42(2):17-20,4.
