A quasi-3D theory for vibration and buckling of functionally graded sandwich beams

Vo, Thuc, Thai, Huu-Tai, Nguyen, Trung-Kien, Inam, Fawad and Lee, Jaehong (2015) A quasi-3D theory for vibration and buckling of functionally graded sandwich beams. Composite Structures, 119. 1- 12. ISSN 0263-8223

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Official URL: https://doi.org/10.1016/j.compstruct.2014.08.006


This paper presents a finite element model for free vibration and buckling analyses of functionally graded (FG) sandwich beams by using a quasi-3D theory in which both shear deformation and thickness stretching effects are included. Sandwich beams with FG skins-homogeneous core and homogeneous skins-FG core are considered. By using the Hamilton’s principle, governing equations of motion for coupled axial-shear-flexural-stretching response are derived. The resulting coupling is referred to as fourfold coupled vibration and buckling. Numerical examples are carried out to investigate the thickness stretching effect on natural frequencies and critical buckling loads as well as mode shapes of sandwich beams for various power-law indexes, skin-core-skin thickness ratios and boundary conditions.

Item Type: Article
Uncontrolled Keywords: FG sandwich beams, Vibration, Buckling, Finite element, Quasi-3D theory
Subjects: H200 Civil Engineering
H300 Mechanical Engineering
H400 Aerospace Engineering
Department: Faculties > Engineering and Environment > Mechanical and Construction Engineering
Depositing User: Thuc Vo
Date Deposited: 27 Aug 2014 11:32
Last Modified: 17 Dec 2023 15:52
URI: https://nrl.northumbria.ac.uk/id/eprint/17493

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