A simple shear deformation theory for nonlocal beams

Thai, Son, Thai, Huu-Tai, Vo, Thuc and Patel, Vipulkumar Ishvarbhai (2017) A simple shear deformation theory for nonlocal beams. Composite Structures. ISSN 0263-8223 (In Press)

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Official URL: https://doi.org/10.1016/j.compstruct.2017.03.022

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.

Item Type: Article
Uncontrolled Keywords: nanobeam, nonlocal elasticity theory, shear deformation beam theorys bending, vibration
Subjects: H300 Mechanical Engineering
Department: Faculties > Engineering and Environment > Mechanical and Construction Engineering
Depositing User: Becky Skoyles
Date Deposited: 10 Apr 2017 14:01
Last Modified: 10 Apr 2017 15:37
URI: http://nrl.northumbria.ac.uk/id/eprint/30412

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