Finite Element Analysis of the Wear Fatigue of Rails with Gradient Structures
We performed the finite element modeling for the first time to analyze the effect of gradient structures (GS) on the wear fatigue-resistant of rails in the rolling-sliding contacts. We found that GS can enhance the wear fatigue-resistant of rails by reducing the maximum horizontal and vertical displacements on the surface of rails. The thicker GS layers, the better the performance is. For a fixed GS layer thickness, increasing the surface yield strength can effectively reduce surface displacements. The outcome from this study can provide the design guideline for processing the gradient structures in the rail steels to obtain superior mechanical properties.
J. Wang and C. Zhou, "Finite Element Analysis of the Wear Fatigue of Rails with Gradient Structures," Materials Letters, vol. 231, pp. 35-37, Elsevier B.V., Nov 2018.
The definitive version is available at https://doi.org/10.1016/j.matlet.2018.08.012
Materials Science and Engineering
Keywords and Phrases
Finite Element; Gradient Structure; Rails; Wear Fatigue
International Standard Serial Number (ISSN)
Article - Journal
© 2018 Elsevier B.V., All rights reserved.
01 Nov 2018