Geometrically nonlinear vibration analysis of eccentrically stiffened porous functionally graded annular spherical shell segments
| Author | Mirjavadi, Seyed Sajad |
| Author | Forsat, Masoud |
| Author | Barati, Mohammad Reza |
| Author | Hamouda, A. M. S |
| Available date | 2023-02-12T06:20:50Z |
| Publication Date | 2022 |
| Publication Name | Mechanics Based Design of Structures and Machines |
| Resource | Scopus |
| Abstract | This article investigates nonlinear free vibrations of porous functionally graded (FG) annular spherical shell segments surrounded by elastic medium and reinforced by circumferential stiffeners. Porous FG material contains distributed even and un-even porosities and is modeled based on refined power-law function. The governing equations of stiffened porous annular spherical shell segments have been derived according to thin shell theory with the geometrical nonlinear in von Karman-Donnell sense and the smeared stiffeners method. An analytical trend has been provided for solving the nonlinear governing equations. Obtained results demonstrate the significance of porosity distribution, geometric nonlinearity, foundation factors, stiffeners and curvature radius on vibration characteristics of porous FG annular spherical shell segments. |
| Sponsor | The first and second authors would like to thank FPQ (Fidar project Qaem) for providing the fruitful and useful help. |
| Language | en |
| Publisher | Taylor and Francis Ltd. |
| Subject | annular shell segment Nonlinear vibration porous material shell theory spherical shell |
| Type | Article |
| Pagination | 2206-2220 |
| Issue Number | 6 |
| Volume Number | 50 |
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Mechanical & Industrial Engineering [1396 items ]