A nonlocal sinusoidal shear deformation beam theory with application to bending, buckling, and vibration of nanobeams

Thai, Huu-Tai and Vo, Thuc (2012) A nonlocal sinusoidal shear deformation beam theory with application to bending, buckling, and vibration of nanobeams. International Journal of Engineering Science, 54. 58 - 66. ISSN 0020-7225

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Official URL: http://dx.doi.org/10.1016/j.ijengsci.2012.01.009

Abstract

This paper presents a nonlocal sinusoidal shear deformation beam theory for the bending, buckling, and vibration of nanobeams. The present model is capable of capturing both small scale effect and transverse shear deformation effects of nanobeams, and does not require shear correction factors. Based on the nonlocal differential constitutive relations of Eringen, the equations of motion as well as the boundary conditions of the beam are derived using Hamilton’s principle. Analytical solutions for the deflection, buckling load, and natural frequency are presented for a simply supported beam, and the obtained results are compared with those predicted by the nonlocal Timoshenko beam theory. The comparison firmly establishes that the present beam theory can accurately predict the bending, buckling, and vibration responses of short nanobeams where the small scale and transverse shear deformation effects are significant.

Item Type: Article
Uncontrolled Keywords: nonlocal theory, sinusoidal theory, bending, buckling, vibration, nanobeam
Subjects: H200 Civil Engineering
H300 Mechanical Engineering
H400 Aerospace Engineering
Department: Faculties > Engineering and Environment > Mechanical and Construction Engineering
Depositing User: Thuc Vo
Date Deposited: 28 Aug 2013 08:56
Last Modified: 11 May 2017 00:22
URI: http://nrl.northumbria.ac.uk/id/eprint/13383

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