Journal ArticleDOI
Frictionless Contact of a Functionally Graded Half-Space and a rigid Base with an Axially Symmetric Recess
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In this paper, an axially symmetric frictionless contact between an elastically transversely isptropic functionally graded half-space and a rigid base that has a small axisymmetric surface recess is considered.Abstract:
This paper is concerned with an axially symmetric frictionless contact between an elastically transversely isptropic functionally graded half-space and a rigid base that has a small axisymmetric surface recess. The graded half-space is modeled as a nonhomogeneous medium. We reduce the problem to solving Fredholm integral equations, solve these equations numerically and establish a relationship between the applied pressure and gap radius. The effects of anisotropy and nonhomogeneity parameter of the graded half-space on the normal pressure as well as on the critical pressure have been shown graphically.read more
Citations
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The axisymmetric crack problem in a nonhomogeneous medium
Murat Ozturk,Fazil Erdogan +1 more
TL;DR: In this article, the axisymmetric crack problem for a nonhomogeneous medium is considered and the main results given are the stress intensity factors as a function of the nonhomogeneity parameter alpha for various loading conditions.
Journal ArticleDOI
Axisymmetric analysis of a functionally graded layer resting on elastic substrate
TL;DR: In this paper, a functionally graded (FG) elastic layer resting on homogeneous elastic substrate under axisymmetric static loading is considered, where the shear modulus of the FG layer is assumed to vary in an exponential form through the thickness.
Journal ArticleDOI
Frictionless Contact Between a Rigid Indentor and a Transversely Isotropic Functionally Graded Layer
TL;DR: In this article, the relationship between the applied load P and the contact area is obtained by solving the mathematically formulated problem through using the Hankel transform of different order, and numerical results have been presented to assess the effects of functional grading of the non-homogeneous medium and the application load on the stress distribution in the layer as well as on the relationship of applied load and the area of contact.
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A general solution for the receding contact problem of a functionally graded layer resting on a Winkler foundation
Gökhan Adıyaman,Ahmet Birinci +1 more
TL;DR: In this paper, the receding contact problem of functionally graded (FG) layer resting on a Winkler foundation is considered and a general formulation is obtained using elasticity theory and Fourier integral transform.
References
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Journal ArticleDOI
Double receding contact problem for a rigid stamp and two elastic layers
TL;DR: In this article, the authors considered the plane symmetric double receding contact problem for a rigid stamp and two elastic layers having different elastic constants and heights, and solved the problem numerically by making use of appropriate Gauss-Chebyshev integration formulas for two stamp geometries.
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Contact problems with nonconforming discretizations using boundary element method
TL;DR: The algorithm developed is applicable to any problem belonging to the three classic contact situations: conforming, advancing and receding and follows a mixed incremental and iterative technique.
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Discontinuous contact of an anisotropic half-plane and a rigid base with disturbed surface
TL;DR: In this paper, a two-dimensional problem of elastic theory of discontinuous mechanical contact between an anisotropic halfplane and a rigid body having geometric perturbations of flat surface is studied.
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B.E.M. applied to receding contact problems with friction
TL;DR: In this paper, the Boundary Element Method is employed as a numerical tool, being particularly suitable for contact problems, and the particular characteristics of this kind of problem relevant to the design of an efficient solution procedure are discussed.
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An improved finite element scheme for elastic contact problems with friction
Hung-Sying Jing,Ming-Liang Liao +1 more
TL;DR: In this article, the compliance matrix of all the contact node pairs is used rather than the flexibility matrix of each body during iterations, which results in great savings in computer storage and computation time.