Reference : On the convergence of stresses in fretting fatigue
Scientific journals : Article
Engineering, computing & technology : Multidisciplinary, general & others
Computational Sciences
http://hdl.handle.net/10993/34863
On the convergence of stresses in fretting fatigue
English
Pereira, Kyvia [> >]
Bordas, Stéphane mailto [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit]
Tomar, Satyendra mailto [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit]
Trobec, Roman [> >]
Depolli, Matjaz [> >]
Kosec, Gregor [> >]
Magd, Abdel Wahab []
2016
Materials
9
8
Yes
International
[en] finite element analysis ; fretting fatigue ; convergence ; stress analysis
[en] Fretting is a phenomenon that occurs at the contacts of surfaces that are subjected to oscillatory relative movement of small amplitudes. Depending on service conditions, fretting may significantly reduce the service life of a component due to fretting fatigue. In this regard, the analysis of stresses at contact is of great importance for predicting the lifetime of components. However, due to the complexity of the fretting phenomenon, analytical solutions are available for very selective situations and finite element (FE) analysis has become an attractive tool to evaluate stresses and to study fretting problems. Recent laboratory studies in fretting fatigue suggested the presence of stress singularities in the stick-slip zone. In this paper, we constructed finite element models, with different element sizes, in order to verify the existence of stress singularity under fretting conditions. Based on our results, we did not find any singularity for the considered loading conditions and coefficients of friction. Since no singularity was found, the present paper also provides some comments regarding the convergence rate. Our analyses showed that the convergence rate in stress components depends on coefficient of friction, implying that this rate also depends on the loading condition. It was also observed that errors can be relatively high for cases with a high coefficient of friction, suggesting the importance of mesh refinement in these situations. Although the accuracy of the FE analysis is very important for satisfactory predictions, most of the studies in the literature rarely provide information regarding the level of error in simulations. Thus, some recommendations of mesh sizes for those who wish to perform FE analysis of fretting problems are provided for different levels of accuracy.
Research Foundation-Flanders (FWO) ; The Luxembourg National Research Fund (FNR) ; Slovenian research agency (ARRS) in the framework of the FWO lead agency project: G018916N
Researchers ; Professionals ; Students ; General public ; Others
http://hdl.handle.net/10993/34863
10.3390/ma9080639
https://www.scopus.com/inward/record.uri?eid=2-s2.0-84984656855&doi=10.3390%2fma9080639&partnerID=40&md5=683fcaa02de8e7243bd3452df96a3fdb
639
cited By 7
Scopus

File(s) associated to this reference

Fulltext file(s):

FileCommentaryVersionSizeAccess
Limited access
2016On the Convergence of Stresses in Fretting Fatigue.pdfPublisher postprint4.21 MBRequest a copy

Bookmark and Share SFX Query

All documents in ORBilu are protected by a user license.