On contribution of the shaped charge jet tail elements in penetrating a target

Abstract

Calculations demonstrated that penetrating effect of the shaped charges could be significantly increased (by 40–50% in the case of a target made of high-strength steel), if the accuracy of their manufacture makes it possible to reduce the lower velocity threshold, where penetration of the shaped charge jet tail sections into the target terminates. To experimentally confirm these data, it is proposed to study in detail penetrating ability of the shaped charge jet tail sections using the high-density cutoff rods installed at a short distance from the shaped charge (less than its diameter) and designed to eliminate the higher jet speed part. Numerical simulation within the framework of two-dimensional axisymmetric problem of continuum mechanics formed the basis to forecast possible parameters of the cutoff rods to obtain separate tails of the shaped charge jets with different speeds of the leading element.