Analysis of Oblique Penetration of Anti-ricochet Teeth of Conical Projectiles into Thin Metallic Targets

In this paper, penetration of the anti-ricochet teeth of conical projectiles into thin metallic targets under oblique impact has been theoretically examined and analytic model has been proposed for it. The failure by conical projectile is assumed to be asymmetric petaling and the analysis is performed by using the energy balance between initial energy and work done in penetration. The whole work done in penetration consists of the required work for plastic deformation WP, the work for transferring the material to new a position, Wd, the work for bending the petals, Wb and the work for penetration of the teeth, Wt.The results obtained from the analytical model for the penetration of the anti-ricochet tooth and the theoretical and empirical results of the other work during penetration have been compared and discussed.