Explosive reactive armor action against shaped charge jet

Abstract

Study of interaction of explosive reactive armor (ERA) with shaped charge jet is the basis for evaluation of the effectiveness of ERA. The physically based theoretical model of this interaction is given. It is incorporated in the NERA computer code. The influences of backward moving plate and forward moving plate thickness, explosive layer thickness, jet attack angle, and distance between ERA and main armor are investigated. Computational results of NERA code are compared with experimental data. The computational and experimental results of penetration in the steel armor target are in good agreement. The results of NERA code calculations reveal the possibilities for an improvement of ERA efficiency.