Finite element model for vibration and buckling of functionally graded sandwich beams based on a refined shear deformation theory

Thuc P. Vo, Huu-Tai Thai, Trung-Kien Nguyen, Alireza Maheri, Jaehong Lee

Research output: Contribution to journalArticle

87 Citations (Scopus)

Abstract

Finite element model for vibration and buckling of functionally graded sandwich beams based on a refined shear deformation theory is presented. The core of sandwich beam is fully metal or ceramic and skins are composed of a functionally graded material across the depth. Governing equations of motion and boundary conditions are derived from the Hamilton?s principle. Effects of power-law index, span-to-height ratio, core thickness and boundary conditions on the natural frequencies, critical buckling loads and load?frequency curves of sandwich beams are discussed. Numerical results show that the above-mentioned effects play very important role on the vibration and buckling analysis of functionally graded sandwich beams.
Original languageEnglish
Pages (from-to)12 - 22
Number of pages11
JournalEngineering Structures
Volume64
Early online date18 Feb 2014
DOIs
Publication statusPublished - 1 Apr 2014

Keywords

  • Functionally graded sandwich beams
  • Vibration
  • Buckling
  • Finite element

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