Characteristics of High-speed Steel Projectiles Penetrating into Multi-layer Spaced Metal Plates

High speed steel projectiles with L/D=1.5 were launched at impact velocities of 1 300 m/s by a cannon.It penetrated thin A3 steel spaced metal plates with big space. The process and principle of steel projectiles against multi layer plates with big space was analyzed and simulated. The numerical results give a good agreement with experimental results. The results indicate that the projectile has stronger penetration against spaced targets and provides important parameters for designing such projectiles.