Experimental and numerical three-point bending test for sandwich beams

• Autorzy: Czechowski L. , Jankowski J. , Kotełko M.

Identyfikatory

DOI

10.5604/01.3001.0010.3071

• Języki publikacji: EN

Abstrakty

EN

The article deals with an experimental investigation of mechanical properties of sandwich beams obtained from bending tests. The tested specimens consisted of foam or honeycomb core and face sheets made of aluminium alloys, plywood or composite material. The face sheets and the core were bonded with glue material. Beams of different dimensions, namely beam width, as well as core and face sheets thickness, were tested. Three point bending tests were carried out, which mid span deflections of the beam versus applied force were recorded. Experimental test results were compared with simulations on the basis of finite element method. The full, non-linear analysis, taking into account large displacements and using contact elements was performed. The obtained results are presented in loaddeflection diagrams. Some conclusions concerning ultimate loads and failure behaviour of tested beams made of different materials have been derived.

Słowa kluczowe

EN

numerical simulation; bending tests; composite materials; sandwich beams; honeycomb

• 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: 2017
• Tom: Vol. 24, No. 3
• Strony: 53--62
• Opis fizyczny: Bibliogr. 15 poz., rys.

Twórcy

autor

Czechowski L.

• Lodz University of Technology, Department of Strength of Materials Stefanowskiego Street 1/15, 90-924 Lodz, Poland tel.:[phone], fax: [phone]

autor

Jankowski J.

• Lodz University of Technology, Department of Strength of Materials Stefanowskiego Street 1/15, 90-924 Lodz, Poland tel.:[phone], fax: [phone]

autor

Kotełko M.

• Lodz University of Technology, Department of Strength of Materials Stefanowskiego Street 1/15, 90-924 Lodz, Poland tel.:[phone], fax: [phone]

Bibliografia

• [1] Chen, C., Harte, A. M., Fleck, N. A., The plastic collapse of sandwich beams with a metallic foam core, IJMS 43, pp. 1483-1506, 2001.
• [2] Corigliano, A., Rizzi, E., Papa, E., Experimental characterization and numerical simulations of a syntactic-foam/glass-fibre composite sandwich, Composites Science and Technology, Vol. 60, 2000.
• [3] Czechowski, L., Jankowski, J., Kubiak, T., Experimental Tests of a Property of Composite Material Assigned for Ballistic Products, Fibres & Textiles in Eastern Europe, Vol. 20, No. 3,pp. 61-66, 2012.
• [4] Deshpande, V. S., Fleck, N. A., Collapse of truss core sandwich beams in 3-point bending,IJSS 38, pp. 6275-6305, 2001.
• [5] Deshpande, V. S., The design of sandwich panels with foam cores, Metallic foams,Cambridge University, Paper 8, 2002.
• [6] Jankowski, M., Kotełko, M., Dynamic compression tests of a polyurethane flexible foams asa step in modeling impact of the head to the vehicle seat head restraint, Proceedings of theDanubia-Adria Symposium, Vol. 38, No 3, 2010.
• [7] Jankowski, M., Kotełko, M., Experimental identification of constitutive relations in polyurethane flexible foams, in: Proceedings of the 23nd Symposium on Experimental Mechanics of Solids, Jachranka, pp. 15, Poland 2008.
• [8] Magnucka-Blandzi, E., Dynamic stability and static stress state of a sandwich beam with a metal foam core using three modified Timoshenko hypotheses, Mechanics of Advanced Materials and Structures, Vol. 18, No. 1-12, 2011.
• [9] Manalo, A., Aravinthan, T., Behaviour of glued fibre composite sandwich structure in flexure: Experiment and Fibre Model Analysis, Materials and Design, 39, pp. 458-468, 2012.
• [10] Mines, R. A. W., Alias, A., Numerical simulation of the progressive collapse of polymer composite sandwich beams under static loading, Composites: Part A 33, pp.11-26, 2002.
• [11] Qin, Q. H., Wang, T.J., An analytical solution for the large deflections of a slender sandwich beam with a metallic foam core under transverse loading by a flat punch, Composite Structures, 88, 509-518, 2009.
• [12] Plantema, F. J., Sandwich construction. The bending and buckling of sandwich beams, plates and shells. John Wiley & Sons Inc., 1966.
• [13] Romanów, G., Strength of multi-layered structures, Zielona Góra 1995.
• [14] Stamm, K., Witte, H., Sandwich structures: calculation, design, manufacturing (in German: Sandwichkonstruktionen: Berechnung, Fertigung, Ausfűhrung.) Springerverlag, 1974.
• [15] Wang, A-J, McDowell, D. L., Optimization of a metal honeycomb sandwich beam-bar subjected to torsion and bending, IJSS 40, 34, 2085-2099, 2003.

Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).