药型罩曲率半径对EFP成型影响的数值模拟

Numerical Simulation for Influence of Liner Curvature Radius to the Process of EFP

研究了等壁厚球缺罩曲率半径对EFP成型过程的影响,并用LS-DYNA软件进行了三维数值模拟,结果显示曲率半径对EFP成型的速度、外形、长径比有明显的影响,这对EFP战斗部设计具有一定指导意义。

The effects of the curvature radius of equal thickness sphere liner on the process of explosively formed projectile （EFP） is studied, With LS-DYNA3D, the formative process of EFP with equal thickness sphere liner is simulated. The resuhs show that liner curvature radius does have influence on the shapes of EFP and its diameter and length. It provides certainly significanee to the EFP warhead design.