铝金属放热对破片加载能力影响试验研究

为提高炸药爆轰对金属破片的做功能力，对铝粉释放热对金属破片加载能力的影响进行探讨。以浇注HMX基PBX 炸药为研究对象，通过对不同铝粉含量的炸药配方和试验弹的设计，参照GJB772A—1997 方法，测试不同铝粉含量爆热，对战斗部破壳作用特点及金属破片加载作用过程进行分析，并对其金属破片加载能力进行评估。研究结果表明，铝金属放热做功和加载时间的匹配性是影响其破片加载能力的重要原因。

Experiment and Study on Effect of Heat Release of Al onFragment Acceleration Ability

In order to improve the acceleration ability of explosive detonation on metal fragments, the effects of the heatrelease of Al on the acceleration ability of metal fragment were discussed. By taking the cast heating PBX based on HMXas research object, the study on the effect of the heat release of Al metal on the ability to accelerate fragment was carriedout though analysis of the warhead breaking and the loading process of metallic fragment based on the design of explosiveformulas with different content of Al metal and testing of explosion heat according to GJB 772A-97. The results indicatedthat loading capacity of fragment is due to the matching ability between powering of heat release for Al and acceleratingtime including the time of explosive detonation, warhead broken time and loading time of detonation.