A novel approach to model fretting-fatigue in multiaxial and non-proportional loading conditions

Rousseau, Guillaume; Montebello, Claudio; Guilhem, Yoann; Pommier, Sylvie

doi:10.1016/j.ijfatigue.2019.04.022

Cited by 6 publications

(1 citation statement)

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“…- Future developments will consist of better formalizing surface treatment effects, contact geometry [38] (i.e. sphere/plane, punch/plane contact), variable loading conditions [39], but also rheological properties of third body.…”

Section: Resultsmentioning

confidence: 99%

Modeling the fretting fatigue endurance from partial to gross slip: The effect of debris layer

Arnaud

Fouvry

2020

Tribology International

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Fretting Fatigue (FF) appears as a key damaging process in many industrial assemblies subjected to vibrations. In this study, the "U-shape" experimental fretting fatigue endurance evolution of a 35NiCrMo16 steel cylinder/plane contact versus the applied displacement amplitudes is compared versus a complete finite element modeling. This latter takes into account the crack nucleation process, the crack propagation phenomena but also the surface wear as well as the evolution of the "third body" debris layer entrapped within the interface. This dynamical simulation of the fretting fatigue endurance from partial to gross slip condition confirms that surface wear effects can be neglected under partial slip (PS) but must be taken into account including the debris layer effect, in order to predict the fretting fatigue endurance under gross slip (GS) conditions. Using this (PS-NoWear/GS-Wear&ThirdBody) numerical framework, calibrated from a restricted set of plain fatigue experiments, an original "DSN" fretting fatigue chart strategy allowing a global description of the fretting fatigue damages (wear, crack nucleation and failure) as a function of Displacement amplitude, fatigue Stress and N loading cycles is introduced and discussed.

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Section: Resultsmentioning

confidence: 99%