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AuthorMirjavadi, Seyed Sajad
AuthorForsat, Masoud
AuthorBarati, Mohammad Reza
AuthorHamouda, A. M. S
Available date2023-02-12T06:20:50Z
Publication Date2022
Publication NameMechanics Based Design of Structures and Machines
ResourceScopus
URIhttp://dx.doi.org/10.1080/15397734.2020.1771729
URIhttp://hdl.handle.net/10576/39939
AbstractThis 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.
SponsorThe first and second authors would like to thank FPQ (Fidar project Qaem) for providing the fruitful and useful help.
Languageen
PublisherTaylor and Francis Ltd.
Subjectannular shell segment
Nonlinear vibration
porous material
shell theory
spherical shell
TitleGeometrically nonlinear vibration analysis of eccentrically stiffened porous functionally graded annular spherical shell segments
TypeArticle
Pagination2206-2220
Issue Number6
Volume Number50
dc.accessType Open Access


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