Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.11851/1477
Title: The contact problem of a rigid punch sliding over a functionally graded bilayer
Authors: Çömez, İ.
Güler, Mehmet Ali
19122
Keywords: Frictional contact
Elastic properties
Layer-substrate
Half-space
Coatings
Indentation
Gradients
Mechanics
Solids
Plane
Issue Date: Jun-2017
Publisher: Springer Wien
Source: Comez, I., & Guler, M. A. (2017). The contact problem of a rigid punch sliding over a functionally graded bilayer. Acta Mechanica, 228(6), 2237-2249.
Abstract: In this study, the plane contact problem for a rigid cylindrical punch and a functionally graded bilayer is considered. The layers have different thicknesses and elastic constants. The normal and tangential forces are applied to the upper layer with a rigid cylindrical punch, and the lower layer is fully bonded to a rigid substrate. Poisson's ratios are taken as constant, and elasticity moduli are assumed to vary exponentially through the thickness of the layers. With the use of Fourier integral transform, the plane contact problem is reduced to a singular integral equation in which the unknowns are the contact pressure and the contact width. The singular integral equation is solved numerically using Gauss-Jacobi integration formula. The effect of several geometrical and physical parameters such as the material inhomogeneity, the friction coefficient, the layers' height, the mismatch in the material properties at the interface, and the contact width on the contact stress and in-plane stress are investigated in detail.
URI: https://link.springer.com/article/10.1007/s00707-017-1827-2
https://hdl.handle.net/20.500.11851/1477
ISSN: 0001-5970
Appears in Collections:Makine Mühendisliği Bölümü / Department of Mechanical Engineering
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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