Comparison of small scale effect theories for buckling analysis of nanobeams

Year 2017, Volume: 9 Issue: 3, 87 - 97, 31.10.2017

Kadir Mercan , Ömer Civalek

https://doi.org/10.24107/ijeas.340958

Cited By: 4

Abstract

Theories which
consider small scale effect have a great importance on analysis in micro and
nano scale. In present paper, three kind of nanotubes (Carbon Nanotube (CNT),
Boron Nitride Nanotube (BNNT), and Silicon Carbide Nanotube (SiCNT)) are analyzed
in case of buckling on two parameters elastic foundation. Three different small
scale theories (Nonlocal Elasticity Theory (NET), Surface Elasticity Theory
(SET), and Nonlocal Surface Elasticity Theory (NET&SET)) are applied to
calculate the buckling loads. Also Classical Euler-Bernoulli Beam Theory (CT)
is used to see the effect of small scale effective theories. Comparative results
are given for simply supported nanotubes in figures.  

Keywords

Carbon nanotube, Boron nitrid nanotube, Silicon carbid nanotube, nonlocal theory, couple stress theory, surface elasticity theory

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