JBO-9021炸药的冲击起爆Pop关系

采用激光干涉测速技术和高速扫描相机，对新型钝感高能炸药JBO-9021（TATB、HMX和黏结剂的质量分数分别为80%、15%和5%）的冲击起爆Pop关系进行了研究。通过激光干涉测速技术获得了JBO-9021炸药冲击起爆过程中不同光纤探针处（即不同冲击波位置）的粒子起跳瞬时速度，结合未反应炸药的雨贡纽曲线，获得了粒子起跳点的冲击波压力；通过高速扫描相机获得冲击到爆轰距离，结合光纤探针所处位置，得到不同压力下JBO-9021炸药的冲击到爆轰距离，进而拟合出反映JBO-9021炸药冲击起爆性能的Pop关系曲线。结果显示，相对于TATB基PBX9502炸药和HMX基PBX9501炸药，JBO-9021炸药的冲击起爆性能更加优异。

Pop relationship of JBO-9021 explosives

In this study we performed experiment on JBO-9021, a new kind of high insensitive explosive, in which the mass fractions of TATB, HMX and binder are 80％, 15％ and 5％, respectively, under strong shock and achieved its particle velocity histories using laser interferometry and a highspeed scanning camera. We derived the initial shock pressures at different positions in the wedge-shaped test explosive from the particle velocity histories that were measured by laser interferometry and the Hugoniot curve of the unreacted JBO-9021 explosive. According to the run distance to detonation obtained by a streak camera and the locations of the pins, we investigated the Pop relationship of this high insensitive explosive as a function of the initial shock pressure and the run distance to detonation, and demonstrated that JBO-9021 's shock initiation performance is superior to that of the TATB based explosive PBX9502 and the HMX based explosive PBX9501.