Effectiveness of PG-7 Grenade after Passing through the Net-Armor-Numerical Analysis

Abstract

Numerical analyses have been performed to investigate how the PG-7M grenade interaction with the net-armor affect the shaped charge jet formation and penetration capability. Two types of three-dimensional computer simulations were carried out. The first one include mechanical interaction between the grenade and two commonly used types of net armors. The deformation rate of the warhead and occurrence of the short circuit in a fuse of penetrating grenade were estimated. The second type of analyses included the phenomena of shaped charge jet formation and penetration into RHA plate. Since the simulations were carried out for both the deformed and undeformed warheads, it was possible to evaluate the influence of the grenade deformations on the shape charge jet penetration performance.