Finite Element Simulation on Ogive-nosed Projectiles Penetrating Single and Multi-layered Concrete Targets

Single and multi-layered concrete targets have been applied widely in defense fields.Some researches have been done to study the anti-penetration ability of concrete targets.Ogive-nosed projectiles penetrating single and multi-layered concrete targets at velocities of 360-1 058 m/s are simulated by using finite element program LS-DYNA.The residual velocities of projectiles from simulations and experiments are compared,the fracture phenomena of concrete targets is discussed,the penetration characters of single and multi-layered concrete targets are analyzed,and the effects of target thickness on projectile deceleration character are studied.It is showed that the calculation results coincide with the experimental results,which indicates that the given simulation model is effective.