高能炸药毁伤威力数值仿真实验研究

Numerical Simulation Experimental Study on Damage Capability of High Energy Explosive

采用AUTODYN分别对2.0 kg球体裸装药TNT、H6、AL/AP-HE和PBX90104种常用爆炸材料建立数值仿真模型,对爆炸冲击波及热毁伤效应进行仿真分析,并对冲击波超压峰值和温度场温度进行对比分析.结果表明:不同爆炸材料爆炸产生的毁伤效应存在很大差别,在同等装药质量下,4种爆炸材料冲击波超压峰值PBX9010>H6>TNT>AL/AP-HE,4种爆炸材料温度峰值AL/AP-HE>PBX9010>H6>TNT;在距离爆心一定范围内的区域,爆炸温度场可以保持较长时间的高温,其温度衰减速率比冲击波衰减速率小得多,温度对于目标的毁伤作用时间更长,毁伤效果更好.

In this paper,AUTODYN is used to establish a numerical simulation model of four commonly used explosive materials,such as 2.0 kg sphere bare charge TNT,H6,AL/AP-HE and PBX9010.The explosion shock wave and thermal damage effect is simulated,and the peak value of shock wave overpressure and explosion fields temperature are compared and analyzed.The analysis results show that the damage effects produced by different explosive materials are very different.Under the same charge quality,sequence of shock wave overpressure peaks of four explosive materials is PBX9010>H6>TNT>AL/AP-HE,while that of temperature peaks of four explosive materials is AL/AP-HE>PBX9010>H6>TNT.Within a certain range from the explosion center,the explosion temperature field can maintain high temperature for a long time,and its temperature decay rate is much smaller than that of the shock wave.Therefore,the temperature has longer damage time and better damage effect.