Journal ArticleDOI
Two-dimensional contact analysis of elastic graded materials
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TLDR
In this article, the effect of adhesion in frictionless contact is examined and the results show that the power law elastic gradation can be very advantageous in the design of strong and wear resistance sliding surfaces.Abstract:
The present paper examines two-dimensional contact of a rigid cylinder on an elastic graded substrate. The normal, sliding and rolling type of contact are addressed. The effect of adhesion in frictionless contact is also examined. The elastically graded substrate is modeled to be locally isotropic with constant Poisson ratio and elastic modulus that varies with depth, y, according to a power law, E=E 0 y k ; 0≤k , y≥0 . Such variation covers a fairly broad class of graded materials. Exact results are derived within the context of small deformation linear elasticity. The results show that the power law elastic gradation can be very advantageous in the design of strong and wear resistance sliding surfaces.read more
Citations
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Journal ArticleDOI
Contact mechanics of graded coatings
Mehmet Ali Güler,Fazil Erdogan +1 more
TL;DR: In this article, the fracture initiation in graded coatings under sliding contact loading was studied and a series of analytical benchmark solutions for examining the influence of such factors as material inhomogeneity constants, the coefficient of friction and various length parameters on the critical stresses that may have a bearing on the fatigue and fracture of the coating.
Journal ArticleDOI
Two-dimensional contact mechanics of functionally graded materials with arbitrary spatial variations of material properties
Liao-Liang Ke,Yue-Sheng Wang +1 more
TL;DR: In this article, a multi-layered model for frictionless contact analysis of functionally graded materials (FGMs) with arbitrarily varying elastic modulus under plane strain-state deformation has been developed.
Journal ArticleDOI
Two-dimensional sliding frictional contact of functionally graded materials
Liao-Liang Ke,Yue-Sheng Wang +1 more
TL;DR: In this paper, a multi-layered model for sliding frictional contact analysis of functionally graded materials with arbitrarily varying shear modulus under plane strain-state deformation has been developed.
Journal ArticleDOI
Thermoelastic contact mechanics for a flat punch sliding over a graded coating/substrate system with frictional heat generation
TL;DR: In this paper, the problem of thermodynamic contact mechanics for the coating/substrate system with functionally graded properties is investigated, where the rigid flat punch is assumed to slide over the surface of the coating involving frictional heat generation.
Journal ArticleDOI
A surface crack in a graded medium loaded by a sliding rigid stamp
Serkan Dag,Fazil Erdogan +1 more
TL;DR: In this article, a coupled problem of crack/contact mechanics in a nonhomogeneous medium is considered and the results are presented for various combinations of friction coefficient, material nonhomogeneity constant and crack length parameters, in addition to contact stresses, the in-plane component of the surface stress and the stress intensity factors at the crack tip.
References
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Journal ArticleDOI
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