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

A PRELIMINARY DESIGN mODEL FOR EXPLOSIVELY FORMED PROJECTILES

Mohammed Amine Boulahlib

Military Academy, University of Defence, Belgrade, email: m.a.boulahlib@gmail.com

Miloš Marković

University of Belgrade, Faculty of Mechanical Engineering – Weapon Systems Department, mdmarkovic@mas.bg.ac.rs

Slobodan Jaramaz

University of Belgrade, Faculty of Mechanical Engineering – Weapon Systems Department, sjaramaz@mas.bg.ac.rs.

Momčilo Milinović

University of Belgrade, Faculty of Mechanical Engineering – Weapon Systems Department, mmilinovic@mas.bg.ac.rs.

Mourad BendjaballAH

Military Academy, University of Defence, Belgrade, mourad.bendjaballa@hotmail.com

Abstract: The current paper proposes analytical approaches implemented in a performance-calculation program of Explosively Formed Projectiles (EFP). The proposed analytical methods, mathematically describe the EFP forming process aiming to optimize the initial phase of the EFP warhead design. A mathematical model, based on the well-known theoretical approaches, is accomplished and implemented in a software. The developed software provides faster analysis of EFP design process and the possibility to test new EFP configurations, in addition to the performances of already existing ones. The adopted model is tested and validated for several types of EFP warheads according to available experimental reports. Program’s output results such as initial velocity, kinetic energy, axial and radial deformation energies of liners, are compared with experimental data.

Keywords: explosively formed projectiles, analytical method, physics of explosion, performances software.