CUMUL - program for shaped charge warhead design

Slobodan Jaramaz

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

Dejan Micković

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

Predrag Elek

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

Abstract: Computer code CUMUL for shaped charge warhead design was developed. The code includes detonation wave profile estimation, liner collapse, arrival of collapsed liner to the centerline of shaped charge, jet creation and jet breakup. The penetration phenomena are discussed and governing equations are presented. Two cases dealing with the target condition are included: homogenous and non-homogeneous targets. For the purpose of verifying CUMUL, a set of 20 specimens of shaped charges were tested. The tests were directed to investigate the effect of cone apex angle and standoff distance on the performance of shaped charge. From the comparison between experiments and CUMUL results, it was concluded that CUMUL program shows a good agreement with the experiments. That enables it to be a powerful tool for shaped charge warhead design.