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Bending analysis of a functionally graded rotating disk based on the first order shear deformation theory


Citation

Bayat, Mehdi and Sahari, Barkawi and Saleem, Mahdiyya and Ali, Aidy and Wong, Shaw Voon (2009) Bending analysis of a functionally graded rotating disk based on the first order shear deformation theory. Applied Mathematical Modelling, 33 (11). pp. 4215-4230. ISSN 0307-904X; ESSN: 1872-8480

Abstract / Synopsis

The theoretical formulation for bending analysis of functionally graded (FG) rotating disks based on first order shear deformation theory (FSDT) is presented. The material properties of the disk are assumed to be graded in the radial direction by a power law distribution of volume fractions of the constituents. New set of equilibrium equations with small deflections are developed. A semi-analytical solution for displacement field is given under three types of boundary conditions applied for solid and annular disks. Results are verified with known results reported in the literature. Also, mechanical responses are compared between homogeneous and FG disks. It is found that the stress couple resultants in a FG solid disk are less than the stress resultants in full-ceramic and full-metal disk. It is observed that the vertical displacements for FG mounted disk with free condition at the outer surface do not occur between the vertical displacements of the full-metal and full-ceramic disk. More specifically, the vertical displacement in a FG mounted disk with free condition at the outer surface can even be greater than vertical displacement in a full-metal disk. It can be concluded from this work that the gradation of the constitutive components is a significant parameter that can influence the mechanical responses of FG disks.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Engineering
Institute of Advanced Technology
DOI Number: https://doi.org/10.1016/j.apm.2009.03.001
Publisher: Elsevier
Keywords: Functionally graded materials; Rotating disk; Shear deformation
Depositing User: Nabilah Mustapa
Date Deposited: 15 Sep 2015 14:33
Last Modified: 15 Sep 2015 14:33
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1016/j.apm.2009.03.001
URI: http://psasir.upm.edu.my/id/eprint/40273
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