利用电磁法研究HMX与TATB混合钝感炸药的冲击起爆特性

为研究含有少量奥克托金(HMX)且以三氨基三硝基苯(TATB)为基的高能钝感炸药PBX-3的冲击起爆反应增长规律,采用火炮驱动蓝宝石飞片的方法和铝基组合式电磁粒子速度计技术进行了一维平面冲击实验。通过实验测量撞击表面及内部不同深度处的冲击波后粒子速度,得到PBX-3炸药的Hugoniot关系。根据冲击波示踪器所测数据绘制了炸药到爆轰的时间-距离(x-t)图,获得了反映炸药冲击起爆性能的Pop关系。将入射压力为12.964 GPa时达到爆轰的6条速度曲线修整成相同零点,通过读取6条曲线的分离点即反应区末端的C-J点,计算出化学反应区时间和宽度。

Impact Initiation Characteristics of TATB Based Insensitive Explosives Mixed with HMX by Electromagnetic Velocity Gauges

In order to study the growth law of the impact initiation reaction of high energy insensitive PBX-3 explosive based on tri-amino-tri-nitro-benzene(TATB),containing a small amount of Oktokin(HMX),a one-dimensional plane impact test was carried out by the artillery-driven sapphire flyer method and the aluminum-based embedded multiple electromagnetic particle velocity gauge technique.The Hugoniot relationship of the unreacted PBX-3 explosive was obtained by measuring the velocity of the explosive on the surface and different depths inside.The x-t of the explosive to the detonation time versus distance was established by the data measured by the shock wave tracer,and the Pop-plot reflecting the explosive initiation performance of the explosive was obtained.Six speed-to-detonation speed curves with an incident pressure of 12.964 GPa were trimmed to the same zero point.The time and width of the chemical reaction zone were obtained by reading the separation point of the six curves(the C-J point at the end of the reaction zone).