Journal of Energetic Materials

Performance improvement and penetration increment of Explosively Formed Penetrators (EFP) is one of the most considerable issues in the field of defense researches. There are various solutions to achieve this purpose, including innovative designs in the field of charge, linear, skin, explosive train, etc. In this paper, the effect of multi-point initiation, on the formation and penetration of EFPs is investigated by means of finite element method and Lsdyna code. Besides, the simulated model was manufactured and empirical tests were conducted to measure the penetration depth and hole diameter caused by the impact of EFP to the target steel plate. Comparison of extracted data from simulations and experimental data shows good agreement.  Also measurements shows the 40% increase of penetration depth in case of multi-point initiation in comparison with single initiation, which can be concluded as a significant success in performance improvement of warheads of this type.