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Tribology Transactions Volume 59, 2016 - Issue 6
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Original Articles

Three-Dimensional Simulation of Rolling Contact Fatigue Crack Growth in UIC60 Rails

Reza Masoudi NejadFaculty of Engineering, Department of Mechanical Engineering, Ferdowsi University of Mashhad, Mashhad, Iran
,
Khalil FarhangdoostFaculty of Engineering, Department of Mechanical Engineering, Ferdowsi University of Mashhad, Mashhad, IranCorrespondence[email protected]
&
Mahmoud ShariatiFaculty of Engineering, Department of Mechanical Engineering, Ferdowsi University of Mashhad, Mashhad, Iran
Pages 1059-1069 | Received 03 May 2015, Accepted 17 Dec 2015, Published online: 06 Jul 2016
 
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ABSTRACT

In this article, a UIC60 rail with accurate geometry is studied by employing the finite element method. For this purpose, a three-dimensional elastic-plastic finite element model is conducted using model. In addition, the stress distribution of wheel-rail operation is acquired, and its effects on fatigue life are specified by damage mechanic methods. In the finite element model, the displacements and stress intensity factors (SIFs) are computed on the crack near the leading edge to calculate crack propagation trajectories and crack growth rate. The modified Paris model is used to estimate fatigue crack growth rates.

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