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Title: The frictional contact problem of sliding rigid parabolic stamps on graded materials
Authors: Güler, Mehmet Ali
Erdoğan, Fazıl
Dağ, Serkan
Keywords: FGM coatings
Contact stresses
Circular stamp
Singular integral equations
Issue Date: Feb-2008
Source: Guler, M. A., Erdogan, F., & Dag, S. (2008, February). The frictional contact problem of sliding rigid parabolic stamps on graded materials. In AIP Conference Proceedings (Vol. 973, No. 1, pp. 784-789). AIP.
Series/Report no.: AIP Conference Proceedings
Abstract: This study presents an analytical procedure to determine the contact stress distribution at the surface of an FGM coating perfectly bonded to a homogeneous substrate. The coating is assumed to be loaded by a rigid stamp of a semi-circular or circular profile. Using Fourier transformations, the contact mechanics problems are reduced to a singular integral equation of the second kind. Singular behavior of the unknown contact stress distribution at the end points is determined by following a function theoretic method. The singular integral equation is solved numerically using an expansion-collocation technique. Main results of the study are the normal and lateral contact stress components and required contact forces as functions of material parameters. It is shown that a substrate that is softer than the FGM coating could be useful in decreasing the magnitude of the positive lateral stress at the trailing end of the contact.
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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