Thermal and mechanical stresses in a functionally graded thick sphere

In this paper, a general solution for the one-dimensional steady-state thermal and mechanical stresses in a hollow thick sphere made of functionally graded material is presented. The temperature distribution is assumed to be a function of radius, with general thermal and mechanical boundary conditio...

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Bibliographic Details
Published in:The International journal of pressure vessels and piping 2005-07, Vol.82 (7), p.522-527
Main Authors: Eslami, M.R., Babaei, M.H., Poultangari, R.
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Functionally graded material
Hollow sphere
Mechanical engineering. Machine design
Steel design
Steel tanks and pressure vessels
boiler manufacturing
Symmetric thermal stresses
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Summary:In this paper, a general solution for the one-dimensional steady-state thermal and mechanical stresses in a hollow thick sphere made of functionally graded material is presented. The temperature distribution is assumed to be a function of radius, with general thermal and mechanical boundary conditions on the inside and outside surfaces of the sphere. The material properties, except Poisson's ratio, are assumed to vary along the radius r according to a power law function. The analytical solution of the heat conduction equation and the Navier equation lead to the temperature profile, radial displacement, radial stress, and hoop stress as a function of radial direction.
ISSN:0308-0161
1879-3541
DOI:10.1016/j.ijpvp.2005.01.002