Print Email Facebook Twitter Multi-criteria evaluation of wheel/rail degradation at railway crossings Title Multi-criteria evaluation of wheel/rail degradation at railway crossings Author Wei, Z. (TU Delft Railway Engineering; China Academy of Railway Sciences) Nunez, Alfredo (TU Delft Railway Engineering) Liu, Xiubo (Infrastructure Inspection Research Institute; China Academy of Railway Sciences) Dollevoet, R.P.B.J. (TU Delft Railway Engineering) Li, Z. (TU Delft Railway Engineering) Date 2020 Abstract This study evaluates the degradation of wheels and rails at railway crossings. The evaluation method is composed of 1) finite element simulation of dynamic wheel/crossing interaction and 2) multi-criteria analysis of wheel/rail degradation in terms of yield behavior, rolling contact fatigue (RCF) and wear. With the aid of this method, we conducted a case study identifying the proper yield strength of rail steel material for a 54E1-1:9 crossing under a specified traffic condition. The case study indicates that the wear of contact bodies is more sensitive to train speed compared with yield and RCF; the increase of rail yield strength suppresses rail degradation while exacerbating wheel degradation; and rail yield strength in the range of 500–600 MPa is preferred to achieve a good trade-off between the wheel and rail degradations. Subject Finite element modelingMulti-criteria evaluationRailway crossingWheel/rail degradation To reference this document use: http://resolver.tudelft.nl/uuid:535415b5-ff6e-4e17-a2bf-296bb49d98b7 DOI https://doi.org/10.1016/j.triboint.2019.106107 ISSN 0301-679X Source Tribology International, 144 Part of collection Institutional Repository Document type journal article Rights © 2020 Z. Wei, Alfredo Nunez, Xiubo Liu, R.P.B.J. Dollevoet, Z. Li Files PDF 1_s2.0_S0301679X19306218_main.pdf 3.66 MB Close viewer /islandora/object/uuid:535415b5-ff6e-4e17-a2bf-296bb49d98b7/datastream/OBJ/view