the Penetration of Nylon Ballistic Panels by Fragment-Simulating Projectiles. Part I. Linearity Relationship Between the Square of the Striking Velocity and the Number of Layers of Cloth in the Ballistic Panel

摘要

The main purpose of this report is to present an analysis of the ballistic behavior of the FSP-nylon cloth system. For a set of Vc determinations it was found that plots of Vr versus Vs could be adequately represented by hyperbolas. It is then shown that: (a) The energy lost by an FSP after complete passage through a nylon ballistic panel of L layers is virtually constant independent of the striking velocity. (b) The hyperbolas lie on a portion of the surface of a hyperbolic paraboloid with Vr, Vs, and L as axes. (c) The minimum penetration velocity of a missile which has reached the plane of the L'th layer is practically equal to the Vc for L layers. (Author)