Mechanism of anomalous penetration of shaped charge jet into ceramics

Abstract

The mechanism of penetration of the jet in silicon carbide had been investigated experimentally and numerically. In contrast to of metals, the penetration of shaped-charge jet into ceramics has an anomalous character and a smaller depth of penetration. The penetration into ceramics is accompanied by a radial interaction of a crater wall fragments with the jet elements and this leads to a partial melting and evaporation of the elements. Appearance of a "gas" phase enables dispersion of the elements, mixing with the wall fragments, formation of an internal absorption volume, and destabilization of further part of the jet. As a result a considerable part of the jet loses the ability by the penetration. © 2012 American Institute of Physics.