聚焦式定向预制破片战斗部数值模拟研究

Simulation and Study on the Focusing and Directional Premade Fragment of Warhead

利用 ANSYS/LS-DYNA 软件对定向预制破片战斗部进行了三维数值模拟,获得了破片的速度、空间分布、径向散布面积和定向战斗部对破片的爆轰驱动过程的物理图像。通过模型建立,对整体破片初速进行理论计算,并与模拟值进行了比较,它们的结果相符。

The 3D numerical simulation of the static blast test of a Directional and Focusing Premade Fragment of War- head was conducted by using the software of ANSYS/LS-DYNA.The fragment velocity,the space dispersion of frag- ment.the radial distribution area and the physical process of detonation driving fragments by the warhead all obtained. Whole scattering velocity of fragments is calculated with theory formulas,and is compared with simulated values,the results are identical.