Failure analysis and the effect of material properties on the screw pull-out behaviour of polymer composite sleeper materials

Yu, Peng and Manalo, Allan ORCID: and Ferdous, Wahid ORCID: and Salih, Choman ORCID: and Abousnina, Rajab and Heyer, Tom and Schubel, Peter (2021) Failure analysis and the effect of material properties on the screw pull-out behaviour of polymer composite sleeper materials. Engineering Failure Analysis, 128:105577. pp. 1-14. ISSN 1350-6307


The low pull-out resistance and the limited understanding of how the sleeper materials affect the screw pull-out behaviour is one of the key reasons for the lack of confidence in the wide adoption of available composite railway sleepers. In this study, the pull-out strength and the failure analysis through hole microstructure of different sleeper technologies including timber, synthetic composite, recycled plastic and Particulate Filled Resin sleepers were investigated. Also, the effect of material properties on the screw pull-out strength and failure behaviour was determined. The results showed a statistically significant difference in pull-out strength among different sleeper technologies and the paired samples test revealed a high correlation between the pull-out strength and the shear strength of the materials. A simplified prediction model was developed to predict the pull-out resistance for railway sleepers based on shear strength of the composite sleepers. This proposed equation shows a better agreement with the experimental results than an existing theoretical equation regardless of different pull-out behaviour.

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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Faculty/School / Institute/Centre: Historic - Faculty of Health, Engineering and Sciences - School of Civil Engineering and Surveying (1 Jul 2013 - 31 Dec 2021)
Faculty/School / Institute/Centre: Current - Institute for Advanced Engineering and Space Sciences - Centre for Future Materials (1 Jan 2017 -)
Date Deposited: 25 Jan 2022 02:50
Last Modified: 07 Feb 2022 01:22
Uncontrolled Keywords: Composite sleeper; Prediction model; Pull-out failure modes; Screw pull-out behaviour; Shear strength
Fields of Research (2008): 09 Engineering > 0905 Civil Engineering > 090506 Structural Engineering
Fields of Research (2020): 40 ENGINEERING > 4005 Civil engineering > 400510 Structural engineering
Socio-Economic Objectives (2008): E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering
Socio-Economic Objectives (2020): 28 EXPANDING KNOWLEDGE > 2801 Expanding knowledge > 280110 Expanding knowledge in engineering
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