Numerical Simulation of Extended Penetrator with Attack Angle Penetration into Spaced Targets

The extended penetrator penetrating single layer and two-layer spaced targets with attack angle were simulated with LS-DYNA3D, which were compared to that of the baseline rod with the same mass and outer radius. The variation of kinetic energy with time were obtained for extended penetrator and baseline rod respectively. It was demonstrated that the attack angle, velocity and target delamination have effects on the ability of extended penetrator penetrating targets. The advantage of extended penetrator is obvious at high velocity or little attack angle. When the space of the targets equals to the length of the baseline rod, the influence of the target delamination on the penetrating power of expended penetrator is weak, but the influence on the baseline rod is strong, which indicates that the ability of the extended penetrator penetrating two-layer spaced targets is stronger than that of baseline rod.