用电磁粒子速度计实验研究一种TATB基钝感炸药的冲击响应

针对一种新的TATB基钝感炸药(Tx),应用组合式电磁粒子速度计(EMV)测试技术,测量了炸药直接加载、增加有机玻璃隔板以及炸药驱动飞片3种加载状态下炸药内部的粒子速度历程和冲击波轨迹。根据测试结果,分析了不同加载压力下炸药的冲击响应过程。结果表明,炸药直接加载时,加载压力最高,Tx钝感炸药很快达到爆轰状态,到爆轰距离约为1.5mm;在增加有机玻璃隔板、加载压力为14.2GPa时,与直接加载时炸药粒子速度一致,Tx钝感炸药的到爆轰距离明显增加,约为5mm;在炸药驱动飞片、加载压力为9.5GPa时,Tx钝感炸药的粒子速度逐渐降低,存在一定钝化现象,到爆轰距离达到20mm以上。

Experimental Study on the Shock Response of a TATB-based Insensitive Explosive with Electromagnetic Particle Velocity Gauge

Aiming at a new TATB based insensitive explosive(Tx), the particle velocity history and shock wave trajectory in explosive under three kinds of loading states, including explosive loading directly, increase of organic glass partition and explosive driven flyer, were measured by a combined electromagnetic particle velocity(EMV) gauge testing technology.According to the test results, the impact response process of explosive under different loading pressure was analyzed.The results show that when the explosive is loaded directly, the loading pressure is the highest.Tx insensitive explosive soon reach the state of detonation, the distance to detonation is about 1.5mm.After adding organic glass partition,when the loading pressure is 14.2GPa, the velocity of explosive particles is more consistent with the direct loading, the distance to detonation of Tx insensitive explosive is significantly increased to about 5mm.In the explosive driven flyer, when the loading pressure is 9.5GPa, the particle velocity of Tx explosive is gradually decreased,and exist a certain passivation phenomenon, the distance to detonation is more than 20mm.