Flexural behaviour of structural fibre composite sandwich beams in flatwise and edgewise positions

Manalo, A. C. and Aravinthan, T. and Karunasena, W. and Islam, M. M. (2010) Flexural behaviour of structural fibre composite sandwich beams in flatwise and edgewise positions. Composite Structures, 92 (4). 984-995 . ISSN 0263-8223

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Abstract

The flexural behaviour of a new generation composite sandwich beams made up of glass fibre-reinforced polymer skins and modified phenolic core material was investigated. The composite sandwich beams were subjected to 4-point static bending test to determine their strength and failure mechanisms in the flatwise and the edgewise positions. The results of the experimental investigation showed that the composite sandwich beams tested in the edgewise position failed at a higher load with less deflection compared to specimens tested in the flatwise position. Under flexural loading, the composite sandwich beams in the edgewise position failed due to progressive failure of the skin while failure in the flatwise position is in a brittle manner due to either shear failure of the core or compressive failure of the skin followed by debonding between the skin and the core. The results of the analytical predictions and numerical simulations are in good agreement with the experimental results.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Depositing User: Dr Mainul Islam
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - Department of Agricultural, Civil and Environmental Engineering
Date Deposited: 05 Feb 2010 07:07
Last Modified: 02 Jul 2013 23:34
Uncontrolled Keywords: composite sandwich beams; fibre composites; modified phenolic core; flexure; flatwise; edgewise
Fields of Research (FOR2008): 09 Engineering > 0905 Civil Engineering > 090506 Structural Engineering
09 Engineering > 0905 Civil Engineering > 090503 Construction Materials
09 Engineering > 0912 Materials Engineering > 091202 Composite and Hybrid Materials
Socio-Economic Objective (SEO2008): B Economic Development > 87 Construction > 8703 Construction Materials Performance and Processes > 870303 Polymeric Materials (e.g. Paints)
Identification Number or DOI: doi: 10.1016/j.compstruct.2009.09.046
URI: http://eprints.usq.edu.au/id/eprint/6503

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