Numerical Simulation of Steel Projectile Penetrating into Multi-layer Spaced Metal Plates

Steel projectiles are launched at impact velocities of 1 300 m/s or so by a cannon. It penetrated thin A3 steel spaced targets with big distance. The process of projectile against multi-layer targets with big spacing is simulated with explicit finite element software LS-DYNA3D. The effects of various factors including the striking velocity of projectile,the mass of projectile,the L/D ratio of projectile are studied. The numerical results agree well with experimental results. The conclusion and its analysis indicate that the projectile kinematic energy ratio is a very important parameter in determining penetrating capability of the projectile.