Journal
JOURNAL OF SANDWICH STRUCTURES & MATERIALS
Volume 18, Issue 1, Pages 3-29Publisher
SAGE PUBLICATIONS LTD
DOI: 10.1177/1099636215582217
Keywords
Functionally graded sandwich beams; vibration; buckling; quasi-3D theory
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Funding
- Newton Research Collaboration Programme of Royal Academy of Engineering [NRCP/1415/185]
- Basic Research Laboratory Program of the National Research Foundation of Korea (NRF) - Ministry of Education, Science and Technology [2010-0019373, 2012R1A2A1A01007405]
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This paper presents an analytical solution for vibration and buckling of functionally graded (FG) sandwich beams using various quasi-3D theories, which consider effects of both shear and normal deformation. Sandwich beams with FG skins-homogeneous core and homogeneous skins-FG core are considered. By using the Hamilton's principle, governing equations of motion are derived. An analytical solution is presented, and the obtained results by various quasi-3D theories are compared with each other and with the available solutions in the literature. The effects of normal strain, power-law indexes, skin-core-skin thickness and slenderness ratios on vibration and buckling behaviour of sandwich beams are investigated.
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