RDX基含铝炸药不同尺寸的圆筒试验及数值模拟  

Different Diameter Cylinder Tests and Numerical Simulation of RDX based Aluminized Explosive

作　　者：沈飞[1] 王辉[1] 袁建飞[1] 田清政[1] 杨凯[1] 

机构地区：[1]西安近代化学研究所,陕西西安710065

出　　处：《含能材料》2013年第6期777-780,共4页Chinese Journal of Energetic Materials

基　　金：国家"973"计划资助项目(61314303)

摘　　要：为了研究RDX基含铝炸药在不同装药直径下的做功能力,进行了Φ25.4 mm和Φ50.0 mm两种尺寸的圆筒试验。试验结果表明,爆轰产物相对比容均为10时,Φ50.0 mm比Φ25.4 mm圆筒的膨胀速度提高约4.73%。此外,基于Lee-Tarver点火增长模型,采用有限元动力学程序LS-DYNA对两种尺寸的圆筒试验进行了数值模拟,并与试验结果相比较,确定了该含铝炸药爆轰产物的Jones-Wilkins-Lee状态方程和反应速率方程参数。In order to study the power of one RDX-based aluminized explosive with different charge diameter, the cylinder tests with diameters of 25.4 mm and 50.0 mm were conducted. The experimental results show that the expansion velocity of Φ50.0 mm cylinder is 4.73% higher than that of Φ25.4 mm when the relative volume of detonation product is 10. By using the dynamic finite element program LS-DYNA, two cylinder tests were simulated and the Lee-Tarver ignition and growth trinomial model was adopted. The parameters Jones-Wilkins-Lee equation of state and the reaction rate of the aluminized explosive were obtained through simulation and test results.

关 键 词：爆炸力学 含铝炸药 爆轰 圆筒试验 数值模拟 

分 类 号：TQ560.1[化学工程—炸药化工]