Frontiers of Mechanical Engineering >

2012 , Vol. 7 >Issue 4: 433 - 438

DOI: https://doi.org/10.1007/s11465-012-0336-1

RESEARCH ARTICLE

Elastic analysis of heterogeneous thick-walled spherical pressure vessels with parabolic varying properties

  • Keyhan KARAMI ,
  • Majid ABEDI ,
  • Mohammad ZAMANI NEJAD ,
  • Mohammad Hassan LOTFIAN
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  • Mechanical Engineering Department, Yasouj University, Yasouj 75914-353, Iran

Received date: 01 Mar 2012

Accepted date: 11 Jun 2012

Published date: 05 Dec 2012

Copyright

2014 Higher Education Press and Springer-Verlag Berlin Heidelberg
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Abstract

On the basis of plane elasticity theory (PET), the displacement and stress components in a thick-walled spherical pressure vessels made of heterogeneous materials subjected to internal and external pressure is developed. The mechanical properties except the Poisson’s ratio are assumed to obey the parabolic variations throughout the thickness. Effect of material inhomogeneity on the elastic deformations and stresses is investigated. The analytical solutions and the solutions carried out through the FEM have a good agreement. The values used in this study are arbitrary chosen to demonstrate the effect of inhomogeneity on displacements, and stresses distributions.

Key words： thick-walled spherical vessels; heterogeneous materials; FGM; FEM; parabolic varying properties

Cite this article

Keyhan KARAMI , Majid ABEDI , Mohammad ZAMANI NEJAD , Mohammad Hassan LOTFIAN . Elastic analysis of heterogeneous thick-walled spherical pressure vessels with parabolic varying properties[J]. Frontiers of Mechanical Engineering, 2012 , 7(4) : 433 -438 . DOI: 10.1007/s11465-012-0336-1

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