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Evaluation of an Innovative Composite Railway Sleeper for a Narrow-Gauge Track under Static Load

Version 2 2024-06-04, 08:47
Version 1 2018-06-11, 14:08
journal contribution
posted on 2024-06-04, 08:47 authored by W Ferdous, A Manalo, G Van Erp, T Aravinthan, Kazem GhabraieKazem Ghabraie
This paper introduces an innovative composite railway sleeper with an optimal material usage for a narrow-gauge railway track under static loading condition. The composite sleeper is designed using sandwich panels that were bonded and coated with epoxy polymer matrix. The sleeper's optimized shape was obtained using topology optimization. The vertical deflection and sleeper-ballast contact pressure of the optimized sleeper were analyzed by finite-element simulation and compared with a traditional timber sleeper. Prototype sleepers were then manufactured and their performance was evaluated experimentally. Results showed that the optimal sleeper shape only needs 50% volume of materials required for a standard rectangular timber sleeper. The performance of the optimal sleeper satisfactorily met the Australian standard requirements and was very similar to a timber sleeper indicating the high potential of this sleeper technology to replace the existing timber sleepers. This new sleeper is currently being tested in the Queensland Rail network as part of their sleeper maintenance program.

History

Journal

Journal of Composites for Construction

Volume

22

Article number

ARTN 04017050

Pagination

04017050-1 - 04017050-13

Location

Reston, Va.

ISSN

1090-0268

eISSN

1943-5614

Language

English

Publication classification

C Journal article, C1 Refereed article in a scholarly journal

Copyright notice

2017, American Society of Civil Engineers

Issue

2

Publisher

ASCE-AMER SOC CIVIL ENGINEERS