在球面散心冲击波作用下JB-9014炸药冲击引爆过程实验研究

Experimental study on shock initiation process of JB-9014 nder loading conditions of divergent spherical shock wave

1.
Laboratory for Shock Wave and Detonation Physics, Institute of Fluid Physics, hina Academy of Engineering Physics, Mianyang 621900, Sichuan, China

摘要:
采用双灵敏度VISAR对JB-9014炸药在20 GPa的球面散心冲击波作用下冲击引爆过程开展了实验研究。测得的不同厚度JB-9014炸药/窗口界面的粒子速度历程表明，到爆轰距离为2~3 mm，在3~5 mm处反应冲击波已发展为稳定爆轰波。开展了相应的初步数值计算工作，计算结果与实验基本吻合。
- 爆炸力学 /
- 粒子速度 /
- VISAR /
- 球面散心冲击波 /
- JB-9014 /
- 冲击引爆
Abstract:
By bi-sensitivity VISAR, the shock initiation of JB9014 under divergent spherical shock wave (20 GPa) was experimentally studied. The particle velocity profiles of explosive/window interfaces at different positions were measured. The results show that the run to detonation is within 2~3 mm, and steady detonation is fully developed at 3~5 mm. Preliminary modeling was carried out with hydrocode. The simulation is in accordance with the experimental results.
- mechanics of explosion /
- particle velocity /
- VISAR /
- divergent spherical shock wave /
- JB-9014 /
- shock initiation