高压物理学报2011，Vol.25Issue(4)：333-338,6.
冲击波影响下的聚能射流侵彻扩孔方程
Equation of Penetration and Crater Growth by Shaped Charge Jet under the Influence of Shock Wave
肖强强 1黄正祥 1顾晓辉1
作者信息
- 1. 南京理工大学机械工程学院,江苏南京210094
- 折叠
摘要
Abstract
When the penetration velocity is greater than the sound speed,a shock wave will be formed which leads the state parameters of the material change after shock wave front. As the shock wave affects the process of jet penetration and crater growth, Bernoulli equation can not be used directly across shock wave front. On the basis of considering the influence of shock wave during jet penetration, the mechanical properties of axial penetration and radial crater growth are analyzed in the process of shaped charge jet penetration,and the propagation and strength degradation of shock wave are assumed. The penetration model is established for the two cases of the penetration velocities greater or less than the sound speed of target respectively and a new equation of shaped charge jet penetration and radial crater growth is proposed. Compared with Szendrei-Held model,the results show that this model is more suitable for the experimental data of Held et al. Moreover,the influence of shock wave on axial penetration is much smaller than that on the radial crater growth.关键词
聚能射流/侵彻扩孔/冲击动力学/冲击波Key words
shaped charge jet,penetration and crater growth/impact dynamics/shock wave分类
数理科学引用本文复制引用
肖强强,黄正祥,顾晓辉..冲击波影响下的聚能射流侵彻扩孔方程[J].高压物理学报,2011,25(4):333-338,6.
