On the calculation of the Kalker's creep coefficients for non-elliptical contact areas

[EN] FastSim is the most widely used tangential contact method due to its accuracy and computational efficiency. However, its use is limited to elliptic contact areas, as it needs results from Kalker’s Linear Theory, a Hertzian contact theory, to obtain the so-called elastic parameters. This makes FastSim unable to face some of the current railway challenges, such as wear, corrugation, Rolling Contact Fatigue (RCF), wheel flats, etc. Taking this limitation into account, in the present work, an alternative methodology to Kalker’s Linear Theory is proposed, which will enable FastSim to deal with non-Hertzian conditions. The authors gratefully acknowledge the financial support of Agencia Estatal de Investigación and European Regional Development Fund (grant PRE2018-084067 and project TRA2017-84701-R). Gómez-Bosch, J.; Giner-Navarro, J.; Carballeira, J. (2022). On the calculation of the Kalker's creep coefficients for non-elliptical contact areas. En Proceedings of the YIC 2021 - VI ECCOMAS Young Investigators Conference. Editorial Universitat Politècnica de València. 288-294. https://doi.org/10.4995/YIC2021.2021.12313