Publication: FEM analysis of dynamic flexural behaviour of composite sandwich beams with foam core
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2010-08
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Elsevier
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Abstract
The dynamic flexural behaviour of sandwich beams, with composite face-sheets and a foam core, was analysed by developing a 3D finite-element model. To model the core behaviour, a crushable foam model was used. The Hou criteria were used to predict the failure of the face-sheets. Dynamic bending tests were performed to validate the numerical model. The comparison between numerical and experimental results in terms of contact-force histories, peak-force values, absorbed energy, and maximum displacement of both face-sheets was satisfactory. It was revealed that the collapse of the foam core under the impact region favoured the failure of the upper face-sheet.
Description
7 pages, 11 figures
Keywords
Composite sandwich beams, Numerical modelling, Dynamic bending tests
Bibliographic citation
Composite Structures, August 2010, v. 92, nº 9, pp. 2285-2291. Proceeding of: 15th International Conference on Composite Structures (ICCS 15), Porto, Portugal, June 15-17, 2009