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)

Vol. 224 F4 303-317

Ämneskategorier

Maskinteknik

DOI

10.1243/09544097JRRT343

Mer information

Skapat

2017-10-07