Comparison of small scale effect theories for buckling analysis of nanobeams

Authors : Kadir MERCAN, Ömer CİVALEK

Pages : 87-97

Doi:10.24107/ijeas.340958

View : 56 | Download : 10

Publication Date : 2017-10-31

Article Type : Research Paper

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 insert ignore into journalissuearticles values(Carbon Nanotube insert ignore into journalissuearticles values(CNT);, Boron Nitride Nanotube insert ignore into journalissuearticles values(BNNT);, and Silicon Carbide Nanotube insert ignore into journalissuearticles values(SiCNT);); are analyzed in case of buckling on two parameters elastic foundation. Three different small scale theories insert ignore into journalissuearticles values(Nonlocal Elasticity Theory insert ignore into journalissuearticles values(NET);, Surface Elasticity Theory insert ignore into journalissuearticles values(SET);, and Nonlocal Surface Elasticity Theory insert ignore into journalissuearticles values(NET&SET);); are applied to calculate the buckling loads. Also Classical Euler-Bernoulli Beam Theory insert ignore into journalissuearticles values(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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