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RESEARCH PAPERS

Macroscopic Analysis of Axisymmetric Functionally Gradient Materials Under Thermal Loading

[+] Author and Article Information
P. Kwon, C. K. H. Dharan

Department of Mechanical Engineering, University of California, Berkeley, CA 94720

M. Ferrari

Department of Material Science and Mineral Engineering, and Department of Civil Engineering, University of California, Berkeley, CA 94720

J. Energy Resour. Technol 116(2), 115-120 (Jun 01, 1994) (6 pages) doi:10.1115/1.2906015 History: Received January 03, 1993; Revised February 10, 1994; Online April 16, 2008

Abstract

The axisymmetric functionally gradient materials (FGMs) subject to nonuniform temperature variations were studied with the combined use of homogenization and inhomogeneous eigenstrained media analysis. The material properties and the temperature variations were assumed to depend on the radial coordinate only. The inhomogeneous material properties of the FGM cylinder can be obtained by modulating the concentration level of spherical alumina particles in an aluminum matrix. The resulting stresses due to the temperature variation are presented for numerous distribution functions of alumina particles. It is shown that the particle distribution extensively influences the intensity and profile of the thermal stresses.

Copyright © 1994 by The American Society of Mechanical Engineers
Topics: Gradients
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