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Structural Engineering and Mechanics Volume 43, Number 1, July10 2012 , pages 105-126 DOI: https://doi.org/10.12989/sem.2012.43.1.105 |
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Elastic analysis of pressurized thick truncated conical shells made of functionally graded materials |
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M. Ghannad, M. Zamani Nejad, G.H. Rahimi and H. Sabouri
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| Abstract | ||
| Based on the first-order shear deformation theory (FSDT), and the virtual work principle, an elastic analysis for axisymmetric clamped-clamped Pressurized thick truncated conical shells made of functionally graded materials have been performed. The governing equations are a system of nonhomogeneous ordinary differential equations with variable coefficients. Using the matched asymptotic method (MAM) of the perturbation theory, these equations could be converted into a system of algebraic equations with variable coefficients and two systems of differential equations with constant coefficients. For different FGM conical angles, displacements and stresses along the radius and length have been calculated and plotted. | ||
| Key Words | ||
| truncated conical shells; thick-walled; functionally graded material (FGM); analytical solution; perturbation technique | ||
| Address | ||
| M. Ghannad: Mechanical Engineering Faculty, Shahrood University of Technology, Shahrood, Iran M. Zamani Nejad: Mechanical Engineering Department, Yasouj University, Yasouj P.O. Box: 75918-74831, IranMechanical Engineering Department, Tarbiat Modares University, Tehran, Iran G.H. Rahimi and H. Sabouri: | ||