Rolling contact fatigue prediction for rails and comparisons with test rig results
Artikel i vetenskaplig tidskrift, 2010
Tests in a full-scale roller rig, a full-scale linear test rig, and a twin-disc machine are numerically evaluated and compared in terms of rolling contact fatigue loading. From previously evaluated contact patch sizes, a Whler curve relationship is established and matched towards experimentally established fatigue lives. In addition, non-linear finite-element simulations are carried out. Key data needed for the numerical evaluations, as well as difficulties in translating experimental data to numerical models are highlighted. A key parameter here is the interfacial wheel-rail friction. Additional simulations were carried out to establish the latter. However, the conformal contact in the linear test rig makes such simulations very uncertain.
sliding contact
model
Sweden.
numerical prediction
rail-wheel contact
T.] Epsilon
comparison with test rig results
[Kabo
ARMEC Appl Mech
Sweden.
E.
Vernersson
steel
Sweden.
[Ekberg
Gothenburg
A.] Chalmers Ind
Gothenburg
life
non-linear finite-element simulations
rolling contact fatigue
failure
SE-14296 Gothenburg
Författare
Elena Kabo
Chalmers, Tillämpad mekanik, Material- och beräkningsmekanik
Anders Ekberg
Chalmers, Tillämpad mekanik, Material- och beräkningsmekanik
Peter Torstensson
Dynamik
Tore V Vernersson
Dynamik
Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit
0954-4097 (ISSN) 20413017 (eISSN)
Vol. 224 F4 303-317Ämneskategorier
Maskinteknik
DOI
10.1243/09544097JRRT343