REPUBLIC OF SERBIA

MINISTRY OF DEFENCE

www.mod.gov.rs

MINISTRY OF DEFENCE

Material Resources Sector

Defensive Technologies Department

Military Technical Institute

www.vti.mod.gov.rs

Explosive Reactive Armor Action against
Shaped Charge Jet

Dejan Micković

University of Belgrade, Faculty of Mechanical Engineering, dmickovic@mas.bg.ac.rs

Slobodan Jaramaz

University of Belgrade, Faculty of Mechanical Engineering, sjaramaz@mas.bg.ac.rs

PREDRAG ELEK

University of Belgrade, Faculty of Mechanical Engineering, pelek@mas.bg.ac.rs

nenad miloradović

Ministry of Defence of the Republic of Serbia, Belgrade

dragana Jaramaz

University UNION-Nikola Tesla, Faculty of Civil Management, Belgrade, jaramaz.s@sbb.rs

Dušan Micković

EDePro, Belgrade, dusan.mickovic@gmail.com

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.

Keywords: Explosive reactive armor (ERA), Shaped charges, Penetration, Armor efficiency.