Numerical analysis of I-beam supporting structure with multimaterial protective panel - parametric study

• Autorzy: Damaziak K. , Mazurkiewicz Ł. , Małachowski J. , Klasztorny M. , Baranowski P.
• Języki publikacji: EN

Abstrakty

EN

Dynamic response of an I-beam supporting structure subjected to shock wave produced by the detonation of high explosive materials is presented in this paper. Dynamic response of structural components in different load cases-with multimaterial panel protection and without protection, subjected to blast wave from various charge weight and various distance stand-off was determined. LS-DYNA, a 3-D explicit, finite element computer code with Lagrangian-Eulerian coupling was used to study this behaviour. Also initial static load was taken into account as pre-stress field present in the column obtained using dynamic relaxation procedure. The protective panel is composed of fibreglass composite and aluminium foam. The composite orthotropic properties and the failure criteria for fibre and matrix damage as well as the stress-volumetric strain curve for metallic foam were taken into account. The previous study shows that critical to the structure durability are the plastic strains and the structure failure caused by high deformation. Results of the analyses indicate that application of the blast panel around the supporting structure increase the resistance and significantly reduce the plastic deformation of the structure. The pillar without protection can be destroyed by 2 kg TNT placed close to the structure. Analysed beam covered by the blast panel can resist over three times bigger charge without significant deformation of the structure.

Słowa kluczowe

EN

ALE formulation; blast wave; dynamic response; protective panel

• 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. 3
• Strony: 93--102
• Opis fizyczny: Bibliogr. 8 poz., rys.

Twórcy

autor

Damaziak K.

autor

Mazurkiewicz Ł.

autor

Małachowski J.

autor

Klasztorny M.

autor

Baranowski P.

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

Bibliografia

• [1] Malachowski, J., Mazurkiewicz, L., Analysis of Selected Structural Components Subjected To Blast Wave, Journal of KONES, 2011.
• [2] Louca, L. A., Mohamed, Ali R. M., Improving the ductile behaviour of offshore topside structures under extreme loads, Engineering Structures 30, 506-521, 2008.
• [3] Tang, E., Hao, H., Numerical simulation of a cable-stayed bridge response to blast loads, Part I: Model development and response calculations, Engineering Structures 32, 3180-3192, 2010.
• [4] Lu, Y., Wang, Z., Characterization of structural effects from above-ground explosion using coupled numerical simulation, Computers and Structures 84, 1729-1742, 2006.
• [5] Malachowski, J., Modelowanie i badania interakcji ciało stałe-gaz przy oddziaływaniu impulsu ciśnienia na elementy konstrukcji rurociągu, BEL Studio, Warszawa 2010.
• [6] Malachowski, J., Influence of HE location on elastic-plastic tube response under blast loading, Shell Structures Theory and Applications, Vol. 2, 179-182, 2010.
• [7] Hallquist, J. O., LS-Dyna, Theory manual, Livermore, California 2006.
• [8] Wlodarczyk, E., Fundamentals of detonation, Military University of Technology, Warsaw 1995.