Suhr, B., Butcher, T., Lewis, R. orcid.org/0000-0002-4300-0540 et al. (1 more author) (2020) Friction and wear in railway ballast stone interfaces. Tribology International, 151. 106498. ISSN 0301-679X
Abstract
Particle friction in railway ballast influences strongly the behaviour of ballasted tracks. New challenges posed on railway infrastructure increase the requirement for simulations, which need the friction coefficient as an input parameter. Measured friction coefficients of ballast stone contacts were found only in two studies, both under constant loads. In this work, two types of ballast were investigated in cyclic friction tests with incremental increase of the applied load after several cycles. Before each load increase, 3D-scans of some ballast stones allowed to calculate the contact area. Estimating the stress in the contact, the stress-dependency of the friction coefficient and wear were investigated. These experimental observations are discussed regarding their impact for friction modelling in the simulation of railway ballast.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2020 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). |
Keywords: | Friction measurement; Sliding friction; Contact area; Wear model |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Mechanical Engineering (Sheffield) |
Funding Information: | Funder Grant number Virtual Vehicle ORD 85-VO |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 01 Jul 2020 08:46 |
Last Modified: | 01 Jul 2020 08:46 |
Status: | Published |
Publisher: | Elsevier |
Refereed: | Yes |
Identification Number: | 10.1016/j.triboint.2020.106498 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:162679 |