Numerical Analysis of Long-rod Projectile Normally Penetrating into Plate Moving along Transverse Motion

The theory and simulation of the change rules of deflection of the tungsten alloy long-rod projectile that vertically penetrates into traverse moving steel plate are explored. The deflection equation of the steel long-rod projectile penetrating into traverse moving steel plate is deduced with the geostatic. The RIGID and STEINBERG mode long-rod projectile vertically penetrating into traverse moving JOHNSON-COOK mode steel plate are simulated with ANSYS/LS-DYNA finite element software. According to the traverse relative motion rules of the head and tail of the long-rod projectile,the deflection rule of the long-rod projectile is obtained. The simulation results show that:the higher the speed of the traverse motion,the larger the deflection of the long-rod projectile,and the deflection keeps increasing during the whole process of penetration.