Author/Authors :
APATAY, Tunç Gazi Üniversitesi - Mühendislik Fakültesi - Makina Müh Böl, Turkey , DAĞ, Serkan Orta Doğu Teknik Üniversitesi - Mühendislik Fakültesi - Makina Müh Böl, Turkey , GÜLER, Mehmet Ali TOBB Ekonomi ve Teknoloji Üniversitesi - Mühendislik Fakültesi - Makina Müh Böl, Turkey , GÜLGEÇ, Müfit Gazi Üniversitesi - Mühendislik Fakültesi - Makina Müh Böl, Turkey
Title Of Article :
SUBSURFACE CONTACT STRESSES IN FUNCTIONALLY GRADED COATINGS LOADED BY A FRICTIONAL FLAT STAMP
Abstract :
In this study, a method has been developed in order to calculate the subsurface contact stresses in a functionally graded coating loaded by a frictional flat stamp on the contact surface. Plane elasticity is considered; Poisson’s ratio is taken to be constant for the FGM coating and the substrate is taken to be homogeneous. The problem is reduced to a singular integral equation which is solved numerically by means of an expansion collocation technique. The series expansions utilized in the solution of the singular integral equation are expressed in terms of Jacobi polynomials. Effects of punch length, punch location, coefficient of friction and material properties on the subsurface stresses are investigated.
NaturalLanguageKeyword :
Contact mechanics , functionally graded materials (FGM) , coating , friction
JournalTitle :
Journal Of The Faculty Of Engineering and Architecture Of Gazi University
