The competitive role of wear and RCF in a rail steel

A new fatigue frictional contact crack propagation model with the coupled X-FEM/LATIN method

This paper studies the effects of various working conditions on the surface damage of railway steels. The competition between wear and rolling contact fatigue (RCF) is particularly strong in dry rolling-sliding contacts, in which the damage severity of the authors' test cases can be adequately predicted using the shakedown map. In wet contacts, RCF is prevalent: cracks rapidly propagate into the subsurface layer in response to hydraulic pressure penetration and then branch toward the surface causing severe damage (macroscopic pitting). The severity of this phenomenon depends strongly on the applied load and cannot be inhibited by wear due to the low friction. On the basis of these results, a general procedure is proposed to the structural integrity of rails.

Competition between wear and rolling contact fatigue at the wheel—rail interface: some experimental evidence on rail steel:

A failure assessment diagram for components subjected to rolling contact loading

A study on dynamic stress intensity factors of rail cracks at high speeds by a 3D explicit finite element model of rolling contact

A methodology for the prediction of the press-fit curve in the assembly of a railway axle and wheel is described. It starts from friction measurements on samples taken directly from the two...

Prediction of the press-fit curve in the assembly of a railway axle and wheel

Stress intensity factor range and propagation mode of surface cracks under rolling–sliding contact

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Prediction of the press-fit curve in the assembly of a railway axle and wheel

Stress intensity factor range and propagation mode of surface cracks under rolling–sliding contact