不同着角下爆炸成形弹丸对坦克发动机等效靶的毁伤效应

Aiming at damage effect of the tank engine under the action of explosive formed projectile (EFP), structural equivalent design of a typical tank engine and its protective structure, and the penetration experiments of EFP at different penetration angles on the equivalent target of the engine were carried out. Combined with LS-DYNA software, the penetration effect of EFP on the protective plate (steel) at different EFP penetration angles was analyzed. Not only the hole size and damage area of the equivalent target of the engine were obtained, but the remaining kinetic energy after the EFP passed through the target was also obtained. Research indicates that with the increase of the EFP penetration angles, the damage area formed on the steel target increases, and the damage effect of the projectile on the aluminum box is weakened. The experimental results are basically consistent with the simulation results, verifying the effectiveness of the simulation. The maximum failure size of the EFP to the steel target shows an upward trend with the increase of the penetration angle. The residual kinetic energy of the EFP through the steel target decreases with the increase of the penetration angle. When the penetration angle is α≥57°, the EFP cannot penetrate the steel target and cannot cause damage to the aluminum box.