对碰波作用下金属圆管运动特性的数值模拟  

Simulation of Motion Characteristic of Metallic Tube Under Two Detonation Waves Impacted

作　　者：孟会林[1] 孙新利[1] 姬国勋[1] 何双群[1] 

机构地区：[1]第二炮兵工程学院,西安710025

出　　处：《战术导弹技术》2006年第6期23-26,共4页Tactical Missile Technology

摘　　要：基于LS-DYNA非线性动力有限元程序,利用ALE算法,对两端面同时起爆作用下金属圆管内爆轰波的相互作用效应进行了三维数值模拟,复现了金属圆管对碰区鼓包及对碰部位首先贯穿断裂的现象.与文献结果进行了对比,计算结果与文献实验结果吻合较好,验证了该计算模型和方法的合理性.Employing ALE arithmetic, the expansion of metallic tube induced by two detonation waves impacted has been simulated numerically with the non-linear and dynamic finite program of LS-DYNA. The swelling of expanded tube and first breakthrough at the place of two detonation waves impacted have been predicted properly. The simulation results are in accord with experimental results and theoretical resuits. The correctness of this calculation model and method is verified.

关 键 词：爆轰波 ALE算法 有限元 金属圆管 

分 类 号：TJ760.32[兵器科学与技术—武器系统与运用工程]