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Title: Mechanical modeling of Thin Films Bonded to Functionally Graded Materials
Authors: Güler, Mehmet Ali
Gülver, Yusuf Fuat
Dağ, Serkan
Keywords: contact mechanics
thin films
functionally graded materials
Issue Date: 2010
Publisher: Trans Tech Publications Ltd
Source: 10th International Symposium on Multiscale, Multifunctional and Functionally Graded Materials -- SEP 22-25, 2008 -- Sendai, JAPAN
Series/Report no.: Materials Science Forum
Abstract: In this study the contact problems of thin films bonded to Functionally Graded Materials (FGM) are considered. In these problems the loading consists of any one or combination of stresses caused by uniform temperature changes and temperature excursions, far field mechanical loading, and residual stresses resulting from film processing or in the manufacturing process of the graded coating. The primary interest in this study is in examining stress concentrations or singularities near the film ends for the purpose of addressing the question of crack initiation and propagation in the substrate or along the interface. The underlying contact mechanics problem is formulated by assuming that the film is a "membrane" and the FGM an elastic continuum, and is solved analytically by reducing it to an integral equation. The calculated results are the interfacial shear stress between the film and the graded substrate, mode II stress intensity factor at the end of the film and the axial normal stress in the film.
ISSN: 0255-5476
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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