A simple shear deformation theory for nonlocal beams

Son Thai, Huu-Tai Thai, Thuc Vo, Vipulkumar Ishvarbhai Patel

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32 Citations (Scopus)
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Abstract

In this paper, a simple beam theory accounting for shear deformation effects with one unknown is proposed for static bending and free vibration analysis of isotropic nanobeams. The size-dependent behaviour is captured by using the nonlocal differential constitutive relations of Eringen. The governing equation of the present beam theory is obtained by using equilibrium equations of elasticity theory. The present theory has strong similarities with nonlocal Euler–Bernoulli beam theory in terms of the governing equation and boundary conditions. Analytical solutions for static bending and free vibration are derived for nonlocal beams with various types of boundary conditions. Verification studies indicate that the present theory is not only more accurate than Euler–Bernoulli beam theory, but also comparable with Timoshenko beam theory.
Original languageEnglish
Pages (from-to)262-270
JournalComposite Structures
Volume183
Early online date16 Mar 2017
DOIs
Publication statusPublished - 1 Jan 2018

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