Thermo elastic analysis of functionally graded rotating disks with temperaturedependent material properties: uniform and variable thickness
 Mehdi Bayat,
 B. B. Sahari,
 M. Saleem,
 A. M. S. Hamouda,
 J. N. Reddy
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A thermo elastic analysis is presented for axisymmetric rotating disks made of functionally graded material (FGM) with variable thickness. Material properties are assumed to be temperaturedependent and graded in the radial direction according to a grading index power law distribution. The temperature field considered is assumed to be uniformly distributed over the disk surface and varied in the radial direction. Semianalytical solutions for the displacement field are given for solid disk and annular disk under freefree and fixedfree boundary conditions. The effects of the thermal field, the material grading index and the geometry of the disk on the displacement and stress fields are investigated. Results of this study emphasize on the crucial role of the temperaturedependent properties in a high temperature environment. A comparison of these results with the reported ones in the literature that is temperaturedependent versus temperatureindependent suggests that a functionally graded rotating disk with concave thickness profile can work more efficiently than the one with uniform thickness irrespective of whether the material properties are assumed to be temperaturedependent or temperatureindependent.
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 Title
 Thermo elastic analysis of functionally graded rotating disks with temperaturedependent material properties: uniform and variable thickness
 Journal

International Journal of Mechanics and Materials in Design
Volume 5, Issue 3 , pp 263279
 Cover Date
 20090801
 DOI
 10.1007/s109990099100z
 Print ISSN
 15691713
 Online ISSN
 15738841
 Publisher
 Springer Netherlands
 Additional Links
 Topics
 Keywords

 Functionally graded material
 Temperaturedependent properties
 Thermo elasticity
 Rotating disk
 Authors

 Mehdi Bayat ^{(1)} ^{(2)}
 B. B. Sahari ^{(1)} ^{(2)}
 M. Saleem ^{(3)}
 A. M. S. Hamouda ^{(4)}
 J. N. Reddy ^{(5)}
 Author Affiliations

 1. Mechanical and Manufacturing Engineering Department, University Putra Malaysia, Serdang, 43400 UPM, Selangor, Malaysia
 2. Institute of Advanced Technology (ITMA), Universiti Putra Malaysia, Serdang, 43400 UPM, Selangor, Malaysia
 3. Department of Applied Mathematics, Z. H. College of Engineering and Technology, AMU, Aligarh, 202002, India
 4. Mechanical and industrial Engineering Department, Qatar University, Doha, Qatar
 5. Department of Mechanical Engineering, Texas A&M University, College Station, TX, USA