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

Thuc Vo, Huu-Tai Thai, Trung-Kien Nguyen, Fawad Inam, Jaehong Lee

Research output: Contribution to journalArticlepeer-review

104 Citations (Scopus)
2 Downloads (Pure)

Abstract

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.
Original languageEnglish
Pages (from-to)1-12
Number of pages12
JournalComposite Structures
Volume119
Early online date17 Aug 2014
DOIs
Publication statusPublished - 1 Jan 2015

Fingerprint

Dive into the research topics of 'A quasi-3D theory for vibration and buckling of functionally graded sandwich beams'. Together they form a unique fingerprint.

Cite this