铝氧比对水中爆炸近场冲击波的影响

为揭示铝氧比对水中爆炸近场冲击波压力的影响,对三种不同铝氧比的RDX/Al体系柱形装药进行了水中爆炸实验,通过高速扫描方法求解了水中爆炸近场冲击波峰值压力随传播距离的衰减规律,分析了所含铝氧比对冲击波初始压力峰值和压力峰值衰减的影响.结果表明,Al/O=0时,初始冲击波峰值压力达到了18.95 GPa,Al/O=0.4时初始冲击波峰值压力约为13.66 GPa,而Al/O=0.7时初始冲击波峰值压力约为8.35 GPa,而峰值压力的衰减速率也随着铝含量的增加而降低.铝粉参加反应的时间、反应的程度等因素对近场冲击波初始峰值压力和峰值压力的衰减影响显著.

Effects of Ratios of Aluminum to Oxygen on Shock Wave of Cylindrical Charge at Underwater Explosive Close-field

Three kinds of cylindrical charges based on RDX with different ratios of aluminum to oxygen were tested through underwater explosion. Attenuation law of shock wave peak pressure versus transmission distance at close-field underwater explosion was resolved by high-speed scanning. The effects of Al/O ratios on initial shock wave peak pressure and attenuation were analyzed. Results show that the initial shock wave peak pressure achieves 18.95 GPa, 13.66 GPa and 8.35 GPa respectively when the Al/O ratios are 0, 0.4 and 0.7. The speed of peak pressure attenuation decreases with the increasing of aluminum content. The factors, such as the time of aluminum beginning to react and the degree of reaction,have remarkable effects on shock wave peak pressure at close-filed and attenuation of peak pressure.