Simulering av spricktillväxt i räl under rullkontaktutmattning
Forskningsprojekt , 2014 – 2019

Rolling contact fatigue (RCF) cracks form on the surface of the rails due to compressive and frictional stresses induced on the rail at the wheel/rail contact patch. After a stage of low-angled growth, the cracks may propagate a) upwards, causing spalling of the rail material, b) downwards, causing complete local failure of the rail, c) along the initial low-angled plane of growth. The project aims in the development of criteria for capturing the direction and rate of crack propagation  in a general non-linear growth setting. The developed criteria along with already existing criteria from the literature are evaluated against known crack paths and rates from mixed-mode crack growth experiments. Criteria that perform best will be used in the development of a numerical tool for simulation of RCF crack evolution.   


Dimosthenis Floros (kontakt)

Doktorand vid Chalmers, Industri- och materialvetenskap, Material- och beräkningsmekanik

Anders Ekberg

Biträdande professor vid Chalmers, Mekanik och maritima vetenskaper, Dynamik

Fredrik Larsson

Professor vid Chalmers, Industri- och materialvetenskap, Material- och beräkningsmekanik



Finansierar Chalmers deltagande under 2014–2015


Finansierar Chalmers deltagande under 2014–2019

Relaterade styrkeområden och infrastruktur



C3SE (Chalmers Centre for Computational Science and Engineering)


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