铝粉含量和粒度对CL-20含铝炸药水中爆炸反应特性的影响  

Effect of aluminum powder content and its particle size on reaction characteristics for underwater explosion of CL-20-based explosives containing aluminum

作　　者：胡宏伟[1] 严家佳[1] 陈朗[2] 郭炜[1] 宋浦[1] 

机构地区：[1]西安近代化学研究所,陕西西安710065 [2]北京理工大学,北京100081

出　　处：《爆炸与冲击》2017年第1期157-161,共5页Explosion and Shock Waves

基　　金：总装重大预先研究专项项目(00401030701)

摘　　要：为了研究CL-20基含铝炸药的爆炸反应机理,利用水中爆炸实验,测量了不同铝粉含量和粒度的CL-20炸药水中爆炸的冲击波参数、二次压力波参数,计算了冲击波能和气泡能。结果表明,水中爆炸的冲击波能和气泡能表征了爆轰和二次反应两个阶段的炸药爆炸能量分配,CL-20炸药中的铝粉主要在二次反应阶段发生反应,只有少部分的铝粉参与了早期的爆轰反应。气泡脉动形成的二次压力波能描述铝粉含量和粒度对二次反应过程的影响,铝粉含量对炸药的二次反应有显著的影响;铝粉粒度对炸药的水下爆炸的初始冲击波参数、冲击波能和气泡能的影响很小,对铝粉与爆轰产物的二次反应速率影响较大。In the present work, the parameters of shock wave and secondary pressure wave with different aluminum powder content and particle size of CL-20-based aluminized explosives were measured by underwater explosion testing, the shock wave energy and bubble energy were calculated, and the explosion reaction mechanism of CL-20-based aluminized explosives was analyzed. The results show that the shock wave energy and the bubble energy of the underwater explosion represent the energy distribution in the early detonation period and the secondary reaction period, with only a minor por- tion of the aluminum powder participating in the early detonation period. The secondary pressure wave formed by the bubble pulsation can describe the effect of the aluminum and detonation products on the secondary reaction. The amount of the aluminum content has a significant influence on the process of the secondary reaction and, while the aluminum particle size has little effect on the initial shock wave parameters, shock wave energy and bubble energy, its effect is great on the secondary reaction rate of the aluminum power and detonation products.

关 键 词：爆炸力学 气泡冲量 水中爆炸 CL-20炸药 铝粉含量 二次反应 含铝炸药 

分 类 号：O381[理学—流体力学]