Vibration and buckling behaviours of thin-walled composite and functionally graded sandwich I-beams

Nguyen, Ngoc-Duong, Nguyen, Trung-Kien, Vo, Thuc, Nguyen, Thien-Nhan and Lee, Seunghye (2019) Vibration and buckling behaviours of thin-walled composite and functionally graded sandwich I-beams. Composites Part B: Engineering, 166. pp. 414-427. ISSN 1359-8368

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Official URL: https://doi.org/10.1016/j.compositesb.2019.02.033

Abstract

The paper proposes a Ritz-type solution for free vibration and buckling analysis thin-walled composite and functionally graded sandwich I-beams. The variation of material through the thickness of functionally graded beams follows the power-law distribution. The displacement field is based on the first-order shear deformation theory, which can reduce to non-shear deformable one. The governing equations of motion are derived from Lagrange's equations. Ritz method is used to obtain the natural frequencies and critical buckling loads of thin-walled beams for both non-shear deformable and shear deformable theory. Numerical results are compared to those from previous works and investigate the effects of fiber angle, material distribution, span-to-height's ratio, and shear deformation on the critical buckling loads and natural frequencies of thin-walled I-beams for various boundary conditions.

Item Type: Article
Uncontrolled Keywords: Ritz method, Vibration, Buckling, Thin-walled composite I-Beams, Thin-walled functionally graded sandwich I-Beams
Subjects: H300 Mechanical Engineering
Department: Faculties > Engineering and Environment > Mechanical and Construction Engineering
Depositing User: Becky Skoyles
Date Deposited: 18 Feb 2019 15:28
Last Modified: 27 Feb 2019 15:00
URI: http://nrl.northumbria.ac.uk/id/eprint/38077

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