两种DNAN基含铝炸药的爆轰性能

为研究2,4-二硝基苯甲醚(DNAN)基含铝炸药的爆轰性能,采用全光纤激光干涉测速仪(DISAR),测量了两种含铝炸药——RBOL-2(DNAN/HMX/Al/添加剂)和RMOE-2(DNAN/HMX/NTO/Al/添加剂)爆轰端面与窗口界面粒子速度以及驱动金属平板自由表面速度,得到两种炸药的爆轰反应区宽度分别为(1.073±0.111)mm和(1.559±0.094)mm,CJ压力分别为(25.42±0.44)GPa和(20.99±0.15)GPa,冯·诺依曼峰值压力分别为41.27 GPa和27.69 GPa等爆轰波结构参数。金属平板自由表面速度结果表明:RBOL-2炸药的做功能力强于RMOE-2炸药;含铝炸药达到的稳定爆轰状态与起爆加载条件有关,加载压力越高,含铝炸药的做功能力越强,在较高的加载压力(21 GPa)下,加载压力越高,参与爆轰反应区反应的铝粉越多,含铝炸药达到的爆轰状态越强。

Detonation Performance of Two DNAN Based Aluminized Explosives

To study the detonation performance of 2,4-dinitroanisole (DNAN) based aluminized explosives,the detonating explosive / LiF interface particle velocity and free surface velocity imparted to thin metal plates for aluminized explosives RBOL-2 (DNAN/HMX/Al/additives) and RMOE-2 (DNAN/HMX/NTO/Al/additives) were measured by a laser displacement interferometer system for any reflector (DISAR). The detonation wave parameters were obtained for these two explosives according to the interfacial particle velocity histories. The reaction zone lengths are (1.073±0.111) mm and (1.559±0.094) mm, the CJ pressures are (25.42±0.44) GPa and (20.99±0.15) GPa, and the Von-Neumann pressures are 27.69 GPa and 41.27 GPa for RBOL-2 and RMOE-2, respectively. The velocity histories of the metal plate show that the work capacity of RBOL-2 is better than that of RMOE-2. In addition, under the experimental conditions, the steady detonation status obtained by aluminized explosive is related to the initiation loading conditions and the loading pressure affects the work capacity of aluminized explosives. The greater the loading pressure, the stronger the work capacity. Under high loading pressure (21 GPa), the higher the loading pressure, the more aluminum particles react in the detonation reaction zone, and the stronger the detonation state of the aluminized explosive.