Experimental investigations of the protective shield - protected plate - test stand system under blast shock wave

• Autorzy: Klasztorny M. , Niezgoda T. , Panowicz R. , Gotowicki P.
• Języki publikacji: EN

Abstrakty

EN

The study presents preliminary experimental range tests of a system for testing protective shields for light armoured vehicles. The shields are designed against HE mines and IEDs up to 10 kg TNT. The system consists of the multiple-use portable range stand, a protected Armox 500T plate and a protective shield. The latter consists of the following main layers: PA11 aluminum, the SCACS hybrid laminate, ALPORAS aluminum foam, and the SCACS hybrid laminate. The layers are connected together with SOUDASEAL chemo-set glue. Overall dimensions of the test stand are ~ 800x800x180 mm, the protected plate has dimensions 650x650x5 mm, and a protective shield is of 450x450x76 mm dimensions. The system rests on a St3 steel plate stiffening the range subsoil. The range stand designed to be resistant up to 10 kg TNT blasts is composed of three appropriately shaped rigid frames connected with six high strength erection bolts. The explosive charge is suspended centrally at 400 mm distance from the top surface of the stand. Two range tests have been performed, i.e.: 1) the protected plate without a protective shield under 2 kg TNT blast shock wave, 2) the protected plate with the protective shield under 2 kg TNT blast shock wave. The effectiveness of the protective shield is assessed via comparing the maximum plastic deflection of the protected plate in both systems. The experimental results have been used to validate the FE model of the system.

Słowa kluczowe

EN

light armoured vehicles; protective shields; multi-layer shields; range tests; validation

• 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: 2010
• Tom: Vol. 17, No. 4
• Strony: 229--236
• Opis fizyczny: Bibliogr. 22 poz., rys.

Twórcy

autor

Klasztorny M.

autor

Niezgoda T.

autor

Panowicz R.

autor

Gotowicki P.

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

Bibliografia

• [1] Patent Application No. (in the course of registration): Niezgoda, T., et al., A portable range stand for blast tests [in Polish], Warsaw, 2010-07-02.
• [2] Patent Application No. (in the course of registration): Niezgoda, T., et al., An aluminium –composite – foam shield for protection of military vehicle bottoms against mines and IED [in Polish], Warsaw, 2010-07-02.
• [3] Niezgoda, T., et al., Modelling and numerical simulations of the protective shield – protected plate – test stand system under blast shock wave, 36th Int. Sci. Congress on Powertrain & Transport Means (European KONES 2010), Warsaw-Gdynia-Jurata 2010 (in press).
• [4] Hassen, A. G., et al., Close-range blast loading of aluminium foam panels, Int. J. of Impact Engineering, Vol. 27, pp. 593-618, 2002.
• [5] Ma, G. W., Ye, Z. Q., Energy absorption of double-layer foam cladding for blast alleviation, Int. J. of Impact Engineering, Vol. 34, pp. 329-347, 2007.
• [6] Silva, P. F., Lu, B., Improving the blast resistance capacity of RC slabs with innovative composite materials, Composites Part B, Vol. 38, pp. 523-534, 2007.
• [7] Barnat, W., et al., Numerical analysis of the composite – foam panels applied to protect pipelines against the blast wave, Int. Conf. New Trends in Designing and Application of Ballistic Protectors, Conf. Proc. pp.112-117, Lodz, Poland 2009.
• [8] Nogel, G., Thambiratnam, D., Use of thin-walled frusta energy absorbers In protection of structures under impast loading, 1st Int. Conf. Design and Analysis of Protective Structures Against Impact/Impulsive/Shock Loads, Tokyo, Japan 2003.
• [9] Niezgoda, T., Barnat, W., Influence of the foam fill of basic composite structures on the failure energy, 8th World Congress on Computational Mechanics (WCCM8), CD Proc. pp. 1-2, Venice, Italy 2008
• [10] Malachowski, J., Study of detonation process – numerical approach, 2nd European Computing Conf. (ECC’08, Conf. Proc. pp. 138-143), Malta 2008.
• [11] Abosbaia, A. A. S., et al., Quasi-static axial crushing of segmented and non-segmented composite tubes, Composite Structures, Vol. 60, No. 3, pp. 327-343, 2003.
• [12] Ochelski, S., Gotowicki, P., Experimental assessment of energy absorption capability of carbonepoxy and glass-epoxy composites, Composite Structures, Vol. 87, pp. 215-224, 2009.
• [13] Babbage, J. M., Mallick, P. K., Static axial crush performance of unfilled and foam-filled aluminium-composite hybrid tubes, Composite Structures, Vol. 70, No. 2, pp. 175-184, 2005.
• [14] Barnat, W., Selected problems of energy-absorption of New types of protective shields under blast shock wave [in Polish], BEL Studio Press, Warsaw 2010.
• [15] Patent Application: Vehicle mine protection structure , US5663520, Ladika, M. D., Malone, D. J., Stevens, D. J., 1997.
• [16] Patent Application: Safety flooring for armoured vehicle, EP1293747, Boettcher, R., Pittinger, H., 2003.
• [17] Fisherova, D., Numerical analyses of buried mine explosions with emphasis on effect of soil properties on loading, PhD Thesis, Defense College of Management and Technology, Cranfield Univ. 2006.
• [18] Tugrkmen, H. S., Structural response of laminated composite shells subjected to blast loading: comparison of experimental and theoretical methods, J. Sound Vibr., Vol. 249, No. 4, pp. 663-678, 2002.
• [19] Protecting people at risk: How DOD research reduces the impact of terrorism. The AMPTIAC Quarterly, Vol. 6, No. 4, 2002.
• [20] Bollero, A., Cesano, G., Superbo, A., Blast resistance of composite superstructures: experimental tests and numerical simulations [unpublished].
• [21] Patent application: Test set for explosives, US 2720780, Garman, G. G., 1955.
• [22] NATO MAS Standarization Agreement (STANAG): Procedures for evaluating the protection levels of logistic and light armoured vehicles for KE and artillery threats, 2004.