Experimental and simulative research on projectile oblique penetration into concrete targets with multi-layered space structure

To investigate the trajectory stability of projectile penetrating into multi-thin-layered space structure concrete targets, the multi-layered space structural concrete targets with reinforcement and experiment of a projectile oblique penetration were designed. By using a high-speed movement photography system, the trajectory parameters in the process of projectile penetrating the targets was got. A simulation software LS-DYNA was used to reproduce the process of experiment. The simulation results show that, the trajectory parameters are consistent with that of experimental test, verifying its reliability. Meanwhile, the rules that effect on trajectory stability when projectile penetrated the targets with different half-cone angle were obtained, and the optimal half-cone angle of trajectory stability was confirmed.