摘要
为了解TATB基JB-9014炸药的爆轰过程,利用火炮驱动飞片加载,采用光子多普勒测速技术,对JB-9014炸药的爆轰反应区结构进行了实验研究。实验中利用火炮发射高速蓝宝石飞片冲击起爆被测炸药,在炸药后表面安装镀膜氟化锂(LiF)窗口测量炸药爆轰时的界面粒子速度,测试过程的时间分辨率小于2ns。将粒子速度剖面对时间进行一阶求导,通过一阶导数的拐点来确定炸药反应区宽度、反应时间。研究结果表明,钝感炸药JB-9014的反应时间为(0.26±0.02)μs,对应的化学反应区宽度为(1.5±0.2)mm,反应结束点处的压力为27.3GPa,von Neumann峰处压力为40.3GPa。
To understand the detonation reaction process of the TATB based JB 9014 explosive, exper imental measurements of the detonation wave profile of solid explosives using photon Doppler veloci metry （PDV） were performed. Planar detonations were produced by impacting the explosive with a sapphire flyer in agasgun. Particle velocity wave profiles were measured at the explosive/window in terrace usingPDV. I.iF windows with very thin vapor deposited aluminum mirrors were used, and the time resolution of the measuring system was less than 2 ns. The interface velocity histories were de rived to determine the reaction zone length and reaction time. The results show that the reaction time of JB 9014 is （0.26±0.02）μs, and the corresponding reaction zone length is （1.5±0.2） ram. The pressure at the end of chemical reaction is 27.3 GPa, the pressure at von Neumann spike is 40.3 GPa.
作者
裴红波
黄文斌
覃锦程
张旭
赵锋
郑贤旭
PEI Hongbo;HUANG Wenbin;QIN Jincheng;ZHANG Xu;ZHAO Feng;ZHENG Xianxu(Institute of Fluid Physics,China Academy of Engineering Physic)
出处
《爆炸与冲击》
EI
CAS
CSCD
北大核心
2018年第3期485-490,共6页
Explosion and Shock Waves
基金
国家自然科学基金项目(11602248)
科学挑战专题项目(TZ2018001)
国防科工局技术基础项目(JSZL2015212C001)
