起爆高密度TATB炸药的飞片速度阈值  

Threshold impact velocity for detonation initiation in high-density TATB explosive by flyer

作　　者：吕军军[1] 曾庆轩[1] 李明愉[1] 周利存[1] 

机构地区：[1]北京理工大学爆炸科学与技术国家重点实验室,北京100081

出　　处：《爆炸与冲击》2014年第1期125-128,共4页Explosion and Shock Waves

基　　金：总装预研基金项目(9140A05080110BQ0119);爆炸科学与技术国家重点实验室基金项目(YBKT13-03)

摘　　要：采用实验与数值模拟相合的方法研究了飞片起爆钝感TATB炸药的性能。设计了飞片可靠起爆钝感TATB炸药的起爆序列,利用全光纤位移干涉测速系统分别测出飞片可靠起爆和未起爆TATB炸药的速度,初步确定飞片起爆钝感TATB炸药的起爆速度阈值。采用DYNA2D程序对飞片起爆TATB炸药过程进行数值模拟,模拟结果与实验结果相符合。The experiments and the numerical simulations were carried out to investigate the character- istics in the initiation process of the TATB explosive by flyers. The initiation sequence was designed to initiate the high-density TATB explosive. The all-fiber displacement interferometer system for any reflector was used to measure the flyer velocities for the success and failure of the initiation in the TATB explosive, respectively. So the corresponding threshold flyer velocity was determined primari- ly. And the DYNA2D program was employed to simulate the detonation process of the TATB explo- sive initiated by the flyer. The simulated results are consistent with the experiments.

关 键 词：爆炸力学 起爆速度阈值范围 起爆序列 高密度TATB炸药 飞片速度 DYNA2D程序 

分 类 号：O381[理学—流体力学] TJ45[理学—力学]