JBO-9021炸药的化学反应区宽度  

Chemical reaction zone length of JBO-9021

作　　者：张涛[1] 谷岩[1] 赵继波[1] 刘雨生[1] 伍星[2] 

机构地区：[1]中国工程物理研究院流体物理研究所,四川绵阳621999 [2]中国工程物理研究院总体工程研究所,四川绵阳621999

出　　处：《爆炸与冲击》2017年第3期415-421,共7页Explosion and Shock Waves

摘　　要：采用激光干涉测试技术和楔形炸药构型,对新型钝感高能炸药JBO-9021的爆轰反应区宽度进行了实验研究。实验中在楔形JBO-9021炸药后加镀膜LiF晶体作为测试窗口,测试受试炸药与测试窗口界面的粒子速度剖面。将粒子速度剖面对时间进行二阶求导,通过粒子速度剖面的二阶求导曲线上等于零的时刻判读CJ点的时刻,从而得到化学反应区宽度。研究结果表明,新型钝感高能炸药JBO-9021的化学反应持续时间为(238±13)ns,相应的化学反应区宽度为(1.52±0.09)mm。In this work we used the laser velocity interferometry for measuring particle velocities and the wedge-shaped test explosive to study the structure of the chemical reaction zone of JBO-9021, a new insensitive high explosive （80 weight% TATB explosive, 15 weight% HMX explosive, 5 weight% binder）. We conducted an experiment to achieve the in-situ particle velocity histories of a thin aluminium film between the test explosive and the LiF window that were introduced to obtain the particle velocities at different positions in the wedge-shaped test explosive after detonation. The CJ point of the particle velocity histories for JBO-9021 were derived from a second time derivative of the velocity history of particles from which we successfully obtained the chemical reaction structure, in- eluding the chemical reaction duration and the chemical reaction zone length. The results show that the chemical reaction duration of JBO-9021 is （238±13） ns and the chemical reaction zone length of JBO-9021 is about （1.52±0.09） ram. Additionally, they also show that the CJ point obtained from a second time derivative of the particle velocity histories is effective.

关 键 词：JBO-9021 高能钝感炸药 激光干涉测速技术 反应区宽度 

分 类 号：O381[理学—流体力学]