炸药爆轰产物驱动不可压缩刚粘塑性柱壳的运动  

The Motion of an Incompressible Rigid-visco-plastic Cy linder Driven by Detonation Products of Explosives

作　　者：谭多望[1] 孙承纬[1] 王彦平[1] 

机构地区：[1]中物院流体物理研究所冲击波物理与爆轰物理实验室,四川绵阳621900

出　　处：《爆炸与冲击》2000年第4期348-352,共5页Explosion and Shock Waves

摘　　要：从质量和动量守恒关系出发 ,结合炸药爆轰产物压力剖面的分析和假设 ,导出了不可压缩刚粘塑性柱壳在柱面散心和聚心爆轰产物推动作用下的运动方程。应用该方程式计算爆轰驱动柱壳的运动与实验结果及动力有限元程序DYNA2D的数值模拟结果十分接近 ,说明散心爆轰波场合波后产物流场可用柱面Taylor波的近似解合理描述 ,有限初始半径聚心爆轰波后产物流场可用平面Taylor波近似描述。Based on the analysis of the press ure profile of the detonation products flow,an analytic solution is derived to c alculate the motion of an incompressible rigid-visco-plastic cylinder driven b y the divergent or convergent detonation of an explosive.The solution was checke d against the experimental results and the numerical results performed with the finite element hydrocode DYNA2D.The good agreement indicates that the cylindrica l divergent flow and convergent flow can be approximately evaluated with cylindr ical Taylor wave and planar Taylor wave respectively.

关 键 词：爆轰驱动 刚粘塑性 柱壳 炸药 

分 类 号：O383[理学—流体力学]