The effect of modulus of elasticity on the behaviour of railway turnout sleepers

Manalo, A. C. and Aravinthan, T. and Karunasena, W. and Stevens, N. (2011) The effect of modulus of elasticity on the behaviour of railway turnout sleepers. In: ACMSM 21: Incorporating Sustainable Practice in Mechanics of Structures and Materials, 7-10 Dec 2010, Melbourne, Australia.

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Abstract

Finite element analysis using a simplified grillage beam model was performed to investigate the effects of the modulus of elasticity of the sleeper, Esleeper and the support modulus, Us on the behaviour of railway turnout sleepers. This study was conducted with the objective of developing a fibre composite sleeper for replacing timber sleepers. The results indicated that the behaviour of turnout sleeper is significantly affected by the changes in Esleeper and Us. A high Esleeper and a low Us generate high bending moments on sleepers with the maximum shear forces almost the same for all the investigated Esleeper and Us. The turnout sleepers tend to undergo greater settlement into the ballast for lower Esleeper and Us. The results show that an Esleeper of 4 GPa is optimal for the development of a fibre composite turnout sleeper as analyses showed that the behaviour of sleepers with this elastic modulus on Us of 20 to 40 MPa are within the specified design codes and standards.


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Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)
Refereed: Yes
Item Status: Live Archive
Additional Information: Accepted version deposited in accordance with the copyright policy of the publisher.
Depositing User: Mr Allan Manalo
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - Department of Agricultural, Civil and Environmental Engineering
Date Deposited: 01 Mar 2011 06:02
Last Modified: 03 Jul 2013 00:10
Uncontrolled Keywords: turnout sleepers; railway; grillage beam analogy; modulus of elasticity; subgrade modulus
Fields of Research (FOR2008): 09 Engineering > 0905 Civil Engineering > 090505 Infrastructure Engineering and Asset Management
09 Engineering > 0905 Civil Engineering > 090506 Structural Engineering
09 Engineering > 0912 Materials Engineering > 091202 Composite and Hybrid Materials
Socio-Economic Objective (SEO2008): B Economic Development > 87 Construction > 8702 Construction Design > 870201 Civil Construction Design
Identification Number or DOI: doi: 10.1201/b10571-76
URI: http://eprints.usq.edu.au/id/eprint/9288

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