Mechanical behaviour of a new type of fibre composite railway sleeper

Manalo, Allan C. and Aravinthan, Thiru (2012) Mechanical behaviour of a new type of fibre composite railway sleeper. In: 3rd Asia-Pacific Conference on FRP in Structures (APFIS 2012), 2-4 Feb 2012, Sapporo, Japan.

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Abstract

This paper presents the results of an experimental investigation on the flexural and shear behaviour of a new type of fibre composite sleeper for railway turnout application. The building block of this innovative railway sleeper is a new generation composite sandwich structure made up of glass fibre composite skins and modified phenolic core material that has been specifically developed for civil engineering applications. Three different section configurations for railway sleepers were produced by gluing layers of fibre composite sandwich structure together in flatwise (horizontal) and in edgewise (vertical) orientations and tested under 4-point static bending and asymmetrical beam shear tests. The effects of the orientation of sandwich lamination on the mechanical behavior of sleepers were investigated. The capacity of the fibre composite sleepers in holding spike-screws was also evaluated. The results showed that the orientation of sandwich laminations has a significant effect on the mechanical behavior of fibre composite railway sleepers. The sleeper section with glued sandwich structures in the edgewise position presented appropriate strength and stiffness for railway sleeper application and has high resistance to hold screw spikes. The mechanical properties of the fibre composite sleeper are far better than most of the available composite railway sleepers and are comparable with the existing timber turnout sleepers demonstrating that the new fibre composite sleeper is a viable alternative sleeper material for railway turnouts.


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Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)
Refereed: Yes
Item Status: Live Archive
Additional Information: Author retains copyright
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - Department of Agricultural, Civil and Environmental Engineering
Date Deposited: 16 May 2013 04:17
Last Modified: 17 Sep 2014 04:22
Uncontrolled Keywords: fibre composites; sandwich structures; railway sleepers; flexure; shear
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/22636

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