Integrated Computational Materials, Process and Product Engineering – IC-MPPE 2022

Various different damage mechanisms driven by local contact loads, contribute to material degradation during long-term railway operations. To assess the material specific damage behavior in crossings a numerical framework is proposed to predict the damage evolution based on three contact parameters. The framework transfers in-service load conditions to the local damage models using three parameters: pmax (maximum contact pressure), c (creepage) and 2a (contact patch length). By finally using wear and RCF models from literature, the proposed method offers a good prediction tool for the material specific assessment of damage in crossings or rails.