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

Ngoc-Duong Nguyen, Trung-Kien Nguyen, Thuc Vo, Thien-Nhan Nguyen, Seunghye Lee

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)
10 Downloads (Pure)

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.
Original languageEnglish
Pages (from-to)414-427
Number of pages14
JournalComposites Part B: Engineering
Volume166
Early online date16 Feb 2019
DOIs
Publication statusPublished - 1 Jun 2019

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