采用LS-DYNA3D软件对弹丸正、斜侵彻单层靶及等厚度双层间隙靶板进行了数值模拟研究。从剩余动能的角度分析了弹丸的侵彻能力,进而得到装甲间隙对防护性能的影响。结果表明:弹丸垂直或小倾角侵彻装甲时,单层板的抗弹性能优于等厚度间隙靶,垂直侵彻时,间隙大小不影响装甲抗弹性能,斜侵彻时,间隙大小与弹长的比值影响抗弹性能。

Numerical simulation was done on a plate and double spaced plates with equivalent thickness were penetrated normally and obliquely by the KE rods with LS-DYNA software. Penetration capability of the rods was analyzed according to the residual kinetics, and the armor spaced effect on the protective performance was obtained. The results show that when the rods penetrate the armor normally or at small oblique angle, anti penetrated performance of the single target is superior to the spaced targets with equivalent thickness. The space has no effect on the anti penetrated performance when penetrated normally, but the ratio of target space to rod length has effect on it when penetrated obliquely.