Analysis the Influence of Projectile Penetration Velocity and Length - Diameter Ratio on Fuze Overload Signal Adhesion

Abstract The overload signal of fuze is prone to be adhesion while projectile penetrating multi-layer target with high speed. This problem would cause failure judgment the layers. ahhesion phenomenon related many factors, such as penetration speed, parameters projectile, characteris and so on. In this paper, influence speed length-diameter ratio on overlaod analyzed by numerical simulation. Firstly, reliability material model its are verified simulating experiments reduced-scale projectiles. Then three models different ratios established compare analyze signals five-layer concrete target. analysis shows that easy increasing ratio. However, increase gradually decreases.