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Quantification of sub-surface railhead material damage due to composite endpost materials of insulated rail joints for cyclic wheel loadings

journal contribution
posted on 29.03.2021, 00:38 by Nirmal Mandal, Roger Lewis, Zefeng Wen
This study focusses on a 3D finite element analysis to investigate damage of sub-surface railhead material at insulated rail joints (IRJs) considering different composite endpost materials (fibreglass, nylon 66 and polytetrafluoroethylene). At the wheel/rail contact patch on IRJs, vertical wheel impacts up to a total of 2000 cycles are applied. Damage parameters exhibit a vertical flat type damage pattern for a depth up to 8 mm initially and, as the cyclic loading increases, the flat damage pattern changes to a horizontal bell-shape pattern. The results indicate that fibreglass is a better endpost material to control sub-surface railhead material damage. © 2020 Elsevier Ltd

History

Volume

113

Start Page

1

End Page

12

Number of Pages

12

eISSN

1873-1961

ISSN

1350-6307

Publisher

Elsevier

Language

en

Peer Reviewed

Yes

Open Access

No

Acceptance Date

20/04/2020

External Author Affiliations

The University of Sheffield, UK; Southwest Jiaotong University, PRC

Author Research Institute

Centre for Railway Engineering

Era Eligible

Yes

Journal

Engineering Failure Analysis

Article Number

104562

Exports