壳体厚度和爆炸深度对水下爆炸冲击波的影响

摘要

Based on the Cole underwater explosion empirical formula and C-J detonation theory, the peak pressure of shock wave created by underwater explosion of TNT with a metal shell with different thickness was calculated by AUTODYN software. The simulation data were fitted into a empirical formula, and the change rule of the peak pressure of shock wave with the rate of shell thickness and explosive radius and explosive depth was analyzed. The results show that the peak pressure of shock wave increases firstly, and then decreases with the increment of rate of shell thickness and explosive radius, and increases with increasing the explosion depth.%根据Cole水下爆炸冲击波经验公式和C-J爆轰理论,用AUTODYN软件对带壳小药量装药水下爆炸进行数值模拟,计算了不同壳体厚度的TNT水下爆炸冲击波压力峰值,得到带壳装药水下爆炸冲击波峰值压力的拟合公式,分析了冲击波随装药壳厚与半径比以及爆炸深度的变化规律.结果表明,带壳装药水下爆炸的冲击波峰值压力随壳厚与装药半径比的增加先增大后减小,随爆炸深度的增加而增大.