Experimental investigation of deflector's angle influence on energy absorption

• Autorzy: Gieleta R. , Barnat W. , Niezgoda T.
• Języki publikacji: EN

Abstrakty

EN

Numerical simulations without preliminary validation and model verification are vulnerable to errors. Best results are obtained when full experimental research is provided. Such tests are expensive and may be dangerous. Due to cost control and personnel safety, studies are often done in scale. Scale can affect both construction dimensions and applied load. In this paper four different vehicle's bottoms are examined: flat bottom and 3 types of deflectors. The paper presents four different vehicle's bottom shapes in order to examine deflector angle influence on energy absorption. The test included 4 cases: flat bottom broken-shaped deflector and deflectors with different apex angles 124 centigrade and 144 centigrade. For all cases the distance between explosive and panel was approximately 400 mm. The charge used was 100 g TNT. Flat bottom and deflectors were made of St3 steel with 2 mm thickness. For the purpose of the research a special test stand to examine effects of detonation wave was used. The force measurement system was designed in Department of Mechanics and Applied Computer Science. As a result, force versus time plots were obtained. The use of any deflector decreases maximum force affecting vehicle's hull.

Słowa kluczowe

EN

IED; improvised explosive device; hull resistance; deflector

• Wydawca: Łukasiewicz Research Network - Institute of Aviation ; European Science Society of Powertrain and Transport KONES Poland ; Wydawnictwo Instytutu Technicznego Wojsk Lotniczych
• Czasopismo: Journal of KONES
• Rocznik: 2012
• Tom: Vol. 19, No. 4
• Strony: 201--205
• Opis fizyczny: Bibliogr. 5 poz., rys.

Twórcy

autor

Gieleta R.

autor

Barnat W.

autor

Niezgoda T.

• Military University of Technology Department of Mechanics and Applied Computer Science Gen. Sylwestra Kaliskiego Street 2, 00-908 Warszawa 49, Poland tel.: [phone], fax: [phone],

Bibliografia

• [1] Małachowski, J., Niezgoda, T., Research of Elastomeric Protective Layers Subjected to Blast Wave, Applied Mechanics and Materials, Vol. 82, pp. 680-685, 2011.
• [2] Baranowski, P., Małachowski, J., Niezgoda, T., Numerical Analysis of Vehicle Suspension System Response Subjected to Blast Wave, Applied Mechanics and Materials, Vol. 82, pp. 728-733, 2011.
• [3] Włodarczyk, E,. Podstawy fizyki wybuchu, Wydawnictwo WAT, 2012.
• [4] Baker, W. E., Explosions in Air, University of Texas Press, Austin and London 1973.
• [5] Staniukowicz, K. P., Fizyka wzrywa, Moskwa 1975.