Sharif University of Technology Scientia Iranica 1026-3098 26 1 2019 02 01 The 3-D finite-element analysis of press fitting process in railway wheel-set 367 374 4586 10.24200/sci.2017.5048.1061 EN S. Sarabandi Institute of Industrial and Control Engineering, Universitat Politecnica de Catalunya, Barcelona, Spain H. Soleimani Department of Mechanical Engineering, Faculty of Engineering, Ferdowsi University of Mashhad, Mashhad, Iran S. Mahmoudi Department of Mechanical Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Iran Journal Article 2017 08 21 Variations in loadings of rolling contact components lead to a change in contact forces between surfaces. These forces are the main cause of rolling contact damages such as fatigue. Residual stresses are a major issue in railway wheel structures and it is appropriate to reduce such stresses. The aim of this paper is to estimate residual stresses in railway wheel due to hub to rim and axle to hub fitting process. a nonlinear three-dimensional model of stress is applied for analyzing stress field during press fitting process. An elastic-plastic finite element model is developed to model variable thermal loading in railway wheel. Finally, results of three dimensional finite element analysis showed a good agreement to field observations. https://scientiairanica.sharif.edu/article_4586_e2c4a40d50b47094f571e40efead3900.pdf