The effect of shear span-to-depth ratio and test set-up on the behavior of fibre composite sandwich structure

Manalo, A. C. (2013) The effect of shear span-to-depth ratio and test set-up on the behavior of fibre composite sandwich structure. In: 4th Asia-Pacific Conference on FRP in Structures (APFIS 2013): Towards Sustainable Infrastructure with FRP Composites, 11-13 Dec 2013, Melbourne, Australia .

Abstract

The shear strength of the core material is a critical parameter and is an important consideration when designing a composite sandwich structure in construction application. In this paper, the shear behaviour of a new generation composite sandwich panel made up of glass fibre composite skins and phenolic core was investigated under three-point loading short beam (SB) and asymmetrical beam shear (ABS) tests. The effect of the shear span-to-depth ratio (a/D) was examined on the shear strength and failure behaviour of the fibre composite sandwich beams. The results showed that the shear behaviour of the beams is affected strongly by the a/D ratios. The beams with a lower a/D ratio failed at a higher load compare to the beams with larger a/D ratio. In general, the sandwich beams tested under ABS failed at a significantly higher load than that of the sandwich beams tested under SB for the same a/D ratio. The results also showed that the behaviour of the fibre composite sandwich beams is governed by the strength of the phenolic core material. In all the tested sandwich beams, the failure of the core occurred under the loading point where the shear force and bending moment are maximum.


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Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)
Refereed: Yes
Item Status: Live Archive
Additional Information: © 2013 International Institute for FRP in Construction. Permanent restricted access to published version due to publisher copyright policy.
Faculty / Department / School: Current - Faculty of Health, Engineering and Sciences - School of Civil Engineering and Surveying
Date Deposited: 06 Feb 2014 10:58
Last Modified: 05 Dec 2014 05:29
Uncontrolled Keywords: fibre composites; sandwich beams; shear; shear span-to-depth ratio; short beam; asymmetrical beam
Fields of Research : 09 Engineering > 0905 Civil Engineering > 090506 Structural Engineering
09 Engineering > 0912 Materials Engineering > 091202 Composite and Hybrid Materials
09 Engineering > 0913 Mechanical Engineering > 091307 Numerical Modelling and Mechanical Characterisation
Socio-Economic Objective: E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering
URI: http://eprints.usq.edu.au/id/eprint/24550

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