黑索今基含铝炸药的铝氧比对爆轰性能及其水下爆炸性能的影响

为了分析铝氧比对爆压和爆速的影响规律，采用试验方法测定了黑索今（RDX）基含铝炸药的爆轰参数，应用KHT程序计算分析了试验测试结果；针对RDX基含铝炸药，进行了1kg柱形装药水下4.7 m爆炸试验，测量了距爆心1～3m处的冲击波压力峰值与气泡脉动周期，拟合得到了冲击波压力峰值与衰减时间常数的相似律系数。研究结果表明：RDX基含铝炸药的爆压和爆速随铝氧比的增加呈现线性减小变化，爆热在铝氧比为0.997时达到最大值；当铝氧比为0.366时，冲击波压力峰值与冲击波能达到最大值；当铝氧比为0.633时，冲击波冲量与冲击波能量密度达到最大值；当铝氧比为0.997时，气泡第一次脉动周期与半径达到最大值。

Effect of Al/O Ratio on Detonation Performance and Underwater Explosion of RDX-based Aluminized Explosive

The detonation parameters of RDX-based aluminized explosive were measured by test, and the test result was verified by KHT code. The influence law of Al/O ratio on detonation pressure, detonation velocity and heat was analyzed. Underwater explosion experiments were carried out on shock wave propagation and bubble pulse of 1kg cylindrical RDX based aluminized explosive under water 4.7m.The coefficients of similitude equation for peak pressure and attenuation time constant were fitted. The study indicates that the detonation pressure and velocity reduce linearly with the increasing of Al/O ratio and the detonation heat achieves a maximum value when Al/O ratio equals to 0.997. When Al/O ratio equals to 0.366, the peak pressure and shock wave energy reach the maximum value, but the shock wave impulse and flux density reach the maximum value when Al/O ratio equals to 0.633, and the first bubble pulsation period and radius reach the maximum values when Al/O ratio equals to 0.997.