爆炸与冲击2017，Vol.37Issue(4)：621-628,8.DOI:10.11883/1001-1455(2017)04-0621-08
PELE贯穿薄靶后外壳破片径向速度计算方法与影响因素分析
Calculation method and influencing factors of the fragmental radial velocities of PELE after penetrating thin target
樊自建 1冉宪文 2汤文辉 2于国栋 2陈为科 3任才清3
作者信息
- 1. 国防科学技术大学指挥军官基础教育学院,湖南长沙410072
- 2. 国防科学技术大学理学院,湖南长沙410073
- 3. 国营806厂,广东佛山528231
- 折叠
摘要
Abstract
Based on an analysis of the PELE (penetrator with enhanced lateral efficiency) penetrating thin metal targets,the deformation process of the front-end projectile was divided into two distinct phases.one-dimensional decomposition in the axial direction and the free conversion in the radial direction,for experimental study.Based on the shock wave theory,we obtained the shock wave compression energy of the front end of the projectile and,on the basis of the conservation of energy and the assumption of two-stage deformation,presented a method for determining the scattered radial velocity of the PELE jacket fragments behind the target.The calculated results in a variety of conditions are fairly consistent with the experimental results.The theoretical analysis showed that the maximum radial velocity of the PELE jacket fragments depends on the radial expansion of both the jacket and the filling part under the shock compression,the former playing a major role in the overall expansion of the projectile whereas the maximum radial velocity of the PELE jacket fragments increasing with the bulk modulus and the Poisson's ratio of the jacket and the filling part.The results suggest that the lateral expansion of both the jacket and the filling part should be taken into account when calculating the radial velocity of the PELE fragments.关键词
侵彻力学/横向效应增强型弹丸/冲击波/破片Key words
penetration mechanics/penetrator with enhanced lateral efficiency/shock wave/fragments分类
数理科学引用本文复制引用
樊自建,冉宪文,汤文辉,于国栋,陈为科,任才清..PELE贯穿薄靶后外壳破片径向速度计算方法与影响因素分析[J].爆炸与冲击,2017,37(4):621-628,8.
