The Sliding Frictional Contact Problem in Two Dimensional Graded Materials Loaded by a Flat Stamp

Romik Khajehtourian; Saeed Adibnazari; Samaneh Tashi

doi:10.4028/www.scientific.net/AMR.463-464.336

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 463-464The Sliding Frictional Contact Problem in Two...

The Sliding Frictional Contact Problem in Two Dimensional Graded Materials Loaded by a Flat Stamp

Abstract:

In this article, the sliding frictional contact problem for a half-plane which is graded in two dimensions is studied. The effect of medium properties gradient and coefficient of friction in contact mechanics of two dimensional (2D) graded materials which is loaded by a flat stamp have been investigated by developing two Finite Element (FE) models, in macro and micro scales. Discretizing the graded half- plane by quadrants for whose material properties are speciﬁed at the centroids by Mori-Tanaka method in both directions has been used to model the 2D FGM in macro scale. In micro scale, the ideal solid quadrant particles which are spatially distributed in a homogeneous matrix used to model the FGM structure. Also, boundary conditions and loading of both models are the same. The study is focused on determining the contact stress distributions on contact surface. The contact mechanic problem of 2D graded materials has been solved and the results are presented for various combinations of friction coeﬃcient and material non-homogeneity constant parameters Analyses and comparison of the results showed that micro and macro scale results are in a very good agreement.

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Advanced Materials Research (Volumes 463-464)

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336-342

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.463-464.336

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Online since:

February 2012

Authors:

Romik Khajehtourian, Saeed Adibnazari, Samaneh Tashi

Keywords:

2d Graded, Functionally Graded Material (FGM), Micro Scale Model, Sliding Frictional Contact, Stress Distribution

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