火药燃烧驱动子弹的数值分析

Numerical analysis of the bullet driven by gunpowder combustion

用LS DYNA非线性动力有限元程序对某型号子母弹战斗部模型火药燃烧驱动子弹的前期运动过程进行了数值分析,获得了波纹管材料和子弹壳体材料的应力应变历程曲线以及子弹抛撒的初速度等多个结果,这对于研究该型号战斗部作用机理和效应评估等都有重要意义。模拟计算的子弹抛撒初速度与试验值基本一致。

By means of the LSDYNA nonlinear and dynamic finite program,the numerical analysis of the prior motion process of the bullet driven by the gunpowder combustion of a certain kind of explosivecluster warhead model,and some results including the stressstrain curve of corrugated pipe and bullet shell material and the initial velocity of bullet scattering are achieved.It is important to research action mechanism and effect evaluation of this kind of warhead.The initial velocity of bullet scattering of numerical simulation is elementarily in accord with experimental value.