A simple shear deformation theory for nonlocal beams
journal contributionposted on 08.12.2020, 22:54 by Son Thai, Huu Tai Thai, Thuc Vo, Vipulkumar Patel
© 2017 Elsevier Ltd
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.
Postgraduate Research Scholarship at La Trobe University
Pagination9p. (p. 262-270)
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Science & TechnologyTechnologyMechanicsMaterials Science, CompositesMaterials ScienceNanobeamNonlocal elasticity theoryShear deformation beam theoryBendingVibrationFUNCTIONALLY GRADED NANOBEAMSDIFFERENTIAL TRANSFORM METHODAMPLITUDE FREE-VIBRATIONWALLED CARBON NANOTUBETIMOSHENKO BEAMBUCKLING ANALYSISCONTINUUM-MECHANICSBOUNDARY-CONDITIONSELASTIC MODELSMaterials