• français
    • English
    français
  • Login
Help
View Item 
  •   Home
  • Laboratoire Mechanics, Surfaces and Materials Processing (MSMP)
  • View Item
  • Home
  • Laboratoire Mechanics, Surfaces and Materials Processing (MSMP)
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Mechanical Integrity of 3D Rough Surfaces during Contact

Article dans une revue avec comité de lecture
Author
BIGERELLE, Maxence
2175 Roberval [Roberval]
175453 Arts et Métiers ParisTech
1303 Laboratoire d'Automatique, de Mécanique et d'Informatique industrielles et Humaines - UMR 8201 [LAMIH]
PLOURABOUE, Franck
690 Institut de mécanique des fluides de Toulouse [IMFT]
441569 Centre National de la Recherche Scientifique [CNRS]
ROBACHE, Frederic
1303 Laboratoire d'Automatique, de Mécanique et d'Informatique industrielles et Humaines - UMR 8201 [LAMIH]
JOURANI, Abdeljalil
2175 Roberval [Roberval]
FABRE, Agnès
211915 Mechanics surfaces and materials processing [MSMP]

URI
http://hdl.handle.net/10985/17974
DOI
10.3390/coatings10010015
Date
2019
Journal
Coatings

Abstract

Rough surfaces are in contact locally by the peaks of roughness. At this local scale, the pressure of contact can be sharply superior to the macroscopic pressure. If the roughness is assumed to be a random morphology, a well-established observation in many practical cases, mechanical indicators built from the contact zone are then also random variables. Consequently, the probability density function (PDF) of any mechanical random variable obviously depends upon the morphological structure of the surface. The contact pressure PDF, or the probability of damage of this surface can be determined for example when plastic deformation occurs. In this study, the contact pressure PDF is modeled using a particular probability density function, the generalized Lambda distributions (GLD). The GLD are generic and polymorphic. They approach a large number of known distributions (Weibull, Normal, and Lognormal). The later were successfully used to model damage in materials. A semi-analytical model of elastic contact which takes into account the morphology of real surfaces is used to compute the contact pressure. In a first step, surfaces are simulated by Weierstrass functions which have been previously used to model a wide range of surfaces met in tribology. The Lambda distributions adequacy is qualified to model contact pressure. Using these functions, a statistical analysis allows us to extract the probability density of the maximal pressure. It turns out that this density can be described by a GLD. It is then possible to determine the probability that the contact pressure generates plastic deformation.

Files in this item

Name:
M2P_COATINGS_FABRE_2019.pdf
Size:
6.552Mb
Format:
PDF
View/Open

Collections

  • Laboratoire Mechanics, Surfaces and Materials Processing (MSMP)

Related items

Showing items related by title, author, creator and subject.

  • Quantification de l’endommagement induit lors du frottement 
    Communication sans acte
    FABRE, Agnès; BARRALLIER, Laurent; ccJÉGOU, Sébastien (2014)
    Le rodage est un phénomène présent lors des premiers cycles de frottement qui modifie la surface de contact d’une pièce d’un point de vue géométrique, couplé à des modifications de propriétés mécaniques. Le rodage génère ...
  • Qualification of the damage induced by friction using X-ray Diffractometry 
    Communication sans acte
    FABRE, Agnès; BARRALLIER, Laurent; ccJÉGOU, Sébastien (2014)
    In a previous study, the capability of X-ray diffraction technique to qualify damage occurring during friction had been proven [1]. The purpose of this study is to complete this research in order to develop a method to ...
  • Microgeometry on surface treated part : measurement and influence 
    Conférence invitée
    FABRE, Agnès (2015)
    This keynote is a review of previous works on the measurement of the roughness, on the influence of roughness on the fatigue lifetime of gears, on an investigation. This presentation deals first with the development of ...
  • Prediction of microgeometrical influences on micropitting fatigue damage on 32CrMoV13 steel 
    Article dans une revue avec comité de lecture
    EVANS, H-P; SHARIF, K.J; DESVIGNES, Marc; FABRE, Agnès; BARRALLIER, Laurent (Elsevier, 2013)
    Micropitting is a form of surface fatigue damage that occurs in the gear teeth. It is due to the effect of variation in the mechanical loading in the contact zone between the two teeth, induced especially by flank roughness. ...
  • Qualification of the damage induced by friction using X-ray Diffractometry 
    Communication sans acte
    FABRE, Agnès; BARRALLIER, Laurent; ccJÉGOU, Sébastien (2014)
    In a previous study, the capability of X-ray diffraction technique to qualify damage occurring during friction had been proven [1]. The purpose of this study is to complete this research in order to develop a method to ...

Browse

All SAMCommunities & CollectionsAuthorsIssue DateCenter / InstitutionThis CollectionAuthorsIssue DateCenter / Institution

Newsletter

Latest newsletterPrevious newsletters

Statistics

Most Popular ItemsStatistics by CountryMost Popular Authors

ÉCOLE NATIONALE SUPERIEURE D'ARTS ET METIERS

  • Contact
  • Mentions légales

ÉCOLE NATIONALE SUPERIEURE D'ARTS ET METIERS

  • Contact
  • Mentions légales