Experimental and numerical study on the effectiveness of the barrier protecting explosive against electric initiation systems

• Autorzy: Żochowski Paweł , Krysiński Bogdan , Bagrowski Jan , Borkowski Jacek

Identyfikatory

DOI

10.12913/22998624/194205

• Języki publikacji: EN

Abstrakty

EN

Improvised explosive devices are responsible for death and injury of thousands of people (both civilians and soldiers) annually. They are often produced by simple home-made modifications of the old artillery shells. One of the ways of preventing modification of currently used artillery shells intended to make it more difficult to use as IEDs was analyzed in the article. A special safety barrier placed between the fuse and the explosive in order to block the access to the explosive after unscrewing the fuse was proposed. The barrier was used also to protect explosive against detonation with commonly used electric initiation systems. Therefore the main aim of the analyses presented in the article was to determine a critical barrier thickness for which the acceptor has 50% probability of being detonated. The research included experimental gap-tests as well as numerical reproduction of the phenomenon in the Impetus AFEA software. Various types of electric initiation systems were analyzed differing with material of the body, type and amount of explosive used as well as the shape of the frontal part of the detonator (flat or with hemispherical cavity). Critical barrier thicknesses were determined for individual variants of donor-gap-acceptor systems. Numerical model of the phenomenon was defined and validated against experimental data. Small differences between the experimental and numerical results allow to use the model to initial evaluation of the effectiveness of different barrier variants.

Słowa kluczowe

EN

gap test; shock sensitiveness; explosives; explosives initiation systems; improvised explosive device; numerical simulations

• Wydawca: Lublin University of Technology ; Polish Society of Ecological Engineering (PTIE), Branch of PTIE in Lublin
• Czasopismo: Advances in Science and Technology. Research Journal
• Rocznik: 2025
• Tom: Vol. 19, no. 1
• Strony: 333--348
• Opis fizyczny: Bibliogr. 38 poz., fig., tab.

Twórcy

autor

Żochowski Paweł

• Military Institute of Armament Technology, ul. Wyszynskiego 7, 05-220 Zielonka, Poland

• https://orcid.org/0000-0003-4125-2944

autor

Krysiński Bogdan

• Military Institute of Armament Technology, ul. Wyszynskiego 7, 05-220 Zielonka, Poland

autor

Bagrowski Jan

• Military Institute of Armament Technology, ul. Wyszynskiego 7, 05-220 Zielonka, Poland

autor

Borkowski Jacek

• Military Institute of Armament Technology, ul. Wyszynskiego 7, 05-220 Zielonka, Poland

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