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Paper
Title

Effect of Material Gradient on Stresses of FGM Rotating Thick-Walled Cylindrical Pressure Vessel with Longitudinal Variation of Properties under Non-uniform Internal and External Pressure

فصلنامه مواد پیشرفته و فرآوری، دوره: 4، شماره: 2
Year: 1395
COI: JR_JMATPR-4-2_001
Language: EnglishView: 64
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Authors

Mehdi Jabbari - Mechanical Engineering Department, Yasouj University, Yasouj, Iran
Mohammad Zamani Nejad - Mechanical Engineering Department, Yasouj University, Yasouj, Iran.
Mehdi Ghannad - Mechanical Engineering Faculty, Shahrood University, Shahrood, Iran

Abstract:

The present paper provides a semi-analytical solution to obtain the displacements and stresses in a functionally graded material (FGM) rotating thick cylindrical shell with clamped ends under non-uniform pressure. Material properties of cylinder are assumed to change along the axial direction according to a power law form. It is also assumed that the Poisson’s ratio is constant. Given the existence of shear stress in the thick cylindrical shell due to material and pressure changes along the axial direction, the governing equations are obtained based on first-order shear deformation theory (FSDT). These equations are in the form of a set of general differential equations with variable coefficients. Given that the FG cylinder is divided into n homogenous disks, n sets of differential equations with constant coefficients are obtained. The solution of this set of equations, applying the boundary conditions and continuity conditions between the layers, yields displacements and stresses. The problem was also solved, using the finite element method (FEM), the results of which were compared with those of the multi-layered method (MLM). Finally, some numerical results are presented to study the effects of applied pressure, non-homogeneity index, and power law index of FGM on the mechanical behavior of the cylindrical shell.

Keywords:

Thick cylindrical shell , Functionally graded material (FGM) , Multi-layered method (MLM) , Longitudinal variation of properties , Non-uniform pressure

Paper COI Code

This Paper COI Code is JR_JMATPR-4-2_001. Also You can use the following address to link to this article. This link is permanent and is used as an article registration confirmation in the Civilica reference:

https://civilica.com/doc/1282733/

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Jabbari, Mehdi and Zamani Nejad, Mohammad and Ghannad, Mehdi,1395,Effect of Material Gradient on Stresses of FGM Rotating Thick-Walled Cylindrical Pressure Vessel with Longitudinal Variation of Properties under Non-uniform Internal and External Pressure,https://civilica.com/doc/1282733

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Type of center: دانشگاه دولتی
Paper count: 3,420
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