A fretting crack initiation prediction taking into account the surface roughness and the crack nucleation process volume
By H. Proudhon, S. Fouvry, Jeanelle France, Gemppm Insa Lyon France. 2005
134 citations recorded by the source corpus.
This paper presents an experimental study of the fretting crack nucleation threshold, expressed in terms of loading conditions, with a cylinder/plane contact. The studied material is a damage tolerant aluminium alloy widely used in the aerospace application. Since in industrial problems, the surface quality is often variable, the impact of a unidirectional roughness is investigated via varying the roughness of the counter body in the fretting experiments. As expected, experimental results show a large effect of the contact roughness on the crack nucleation conditions. Rationalisation of the crack nucleation boundary independently of the studied roughnesses was successfully obtained by introducing the concept of effective contact area. This does show that the fretting crack nucleation of the studied material can be efficiently described by the local effective loadings inside the contact. Analytical prediction of the crack nucleation is presented with the Smith-Watson-Topper (SWT) parameter and size effect is also studied and discussed.
Subfields: Mechanical Engineering, Mechanics of Materials
View Paper: https://www.semanticscholar.org/paper/b7d55e29ed3cd2c77c8f9be89212bf5ebcbbe4c1
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In Mechanical Engineering
In Mechanics of Materials
Citations in the corpus
- Quantitative characterization of surface topography using spectral analysis (2016, background): “Roughness affects not only surface properties – such as hydrophobicity[2], optical and plasmonic behavior[3], adhesion[4–6], friction and Casimir forces[7] – but also “bulk” properties, such as fracture toughness and fatigue resistance[8].”