基于Mushroom试验的炸药爆轰反应速率方程参数校验  

Parameter Validation of the Detonation Reaction Rate Model of Explosives Based on Mushroom Test

作　　者：段英良 韩勇[1] 冉剑龙 谭凯元[1] 昝继超 贾路川[1] DUAN Ying-liang;HAN Yong;RAN Jian-long;TAN Kai-yuan;ZAN Ji-chao;JIA Lu-chuan(Institute of Chemical Materials,CAEP,Mianyang 621999,China)

机构地区：[1]中国工程物理研究院化工材料研究所,四川绵阳621999

出　　处：《含能材料》2021年第5期406-413,I0005,共9页Chinese Journal of Energetic Materials

基　　金：国家自然科学基金资助(11902298)。

摘　　要：为了更准确的校验炸药爆轰反应速率方程参数,以HMX/TATB混合炸药PBX-1为研究对象,采用Mushroom试验方法,研究了炸药在不同传爆直径下的拐角传爆特性,并采用LS-DYNA程序利用拉式试验标定的三项式点火增长模型参数对Mushroom试验进行了数值模拟,通过观察爆轰波的成长和传播历程以及拐角参量的对比,校验已标定反应速率模型参数的准确性。对比试验结果和数值模拟结果发现,Mushroom试验可以反映出爆轰波沿不同方向上爆轰成长过程的差异,进而证明了通过Mushroom试验校验炸药的反应速率模型参数是可行的。In order to precisely validate the parameters of detonation reaction rate model of explosives,a HMX/TATB based explosive PBX-1 was the research subject,and the mushroom test was conducted to study the corner-turning performance of explosives with various detonation propagation diameters.Then the mushroom test was simulated by LS-DYNA program with the three-term ignition and growth model calibrated by Lagrangian gauges measurements.The accuracy in calibrated parameters of the reaction rate model was validated by observing the growth and propagation of detonation waves and by comparing the corner-turning parameters.The comparison between experiments and numerical simulations shows that,the mushroom test can reflect the discrepancy of detonation growths of detonation waves in different directions.Finally,it was proved that the parameter validation of the reaction rate model of explosives is feasible by Mushroom test.

关 键 词：爆炸力学 化学反应速率 蘑菇试验 拐角性能 点火增长模型 

分 类 号：O382[理学—流体力学]