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Lookup NU author(s): Dr Francis Franklin
This is the authors' accepted manuscript of an article that has been published in its final definitive form by Elsevier, 2021.
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Two modes of failure are analysed for coupling links, the mechanical connections that transmit traction forces between vehicles along the length of a train. Coupling links are designed to withstand the dynamic loads in normal operation but may break if applied loads exceed safe operating limits. Fractography of two failed links revealed that one had failed through brittle fracture, and one through ductile fracture. Metallography indicated that one sample was hardened and tempered with typical tempered martensite microstructure and the other was normalized with a ferrite-pearlite microstructure. A numerical model of a coupling link is developed and validated against experimental data. Results indicate that the failed links experienced loads above the permitted limit.
Author(s): Vuksic Popovic M, Tanaskovic J, Glisic D, Radovic N, Franklin FJ
Publication type: Article
Publication status: Published
Journal: Engineering Failure Analysis
Year: 2021
Volume: 127
Online publication date: 21/05/2021
Acceptance date: 12/05/2021
Date deposited: 22/07/2021
ISSN (electronic): 1350-6307
Publisher: Elsevier
URL: https://doi.org/10.1016/j.engfailanal.2021.105497
DOI: 10.1016/j.engfailanal.2021.105497
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