摘要
基于Herrmann改进的Grüneisen状态方程,对多孔药型罩受冲击压缩产生的温升进行了估算,从理论上分析了孔隙度对射流断裂时间的影响。使用脉冲X光测试并结合侵彻实验研究了药型罩初始孔隙度为9.3%和11.4%时聚能射流的稳定性。研究结果表明,在一定孔隙度范围内,射流的稳定性随孔隙度的增加而增强。
Shock-induced temperature rise of the porous liner before collapse was calculated based on the Gruneisen equation of state revised by Herrmann, effect of porosity on the shaped charge break-up time was analyzed theoretically. The stability of jets produced by shaped charges with two different porous liners was studied with flash X-ray and penetration tests. It is shown that the jet stability increases with the porosity within a certain range of porosity.
出处
《爆炸与冲击》
EI
CAS
CSCD
北大核心
2009年第2期217-220,共4页
Explosion and Shock Waves
关键词
爆炸力学
稳定性
孔隙度
聚能射流
断裂时间
mechanics of explosion
stability
porosity
shaped charge jet
break-up time
