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Molecular Dynamics Simulation of the Buckling Behavior of Boron Nitride Nanotubes under Uniaxial Compressive Loading

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Abstract:

Boron Nitride nanotubes (BNNTs) together with carbon nanotubes (CNTs) have attracted the wide attention of the scientific community and have been considered as promising materials due to their unique structural and physical properties. In this paper, the behavior of BNNTs of different diameters under compressive loading has been studied through molecular dynamic (MD) simulations. We have used a Lennard-Jones pair potential to characterize the interactions between non-bonded atoms and harmonic potentials for bond stretching and bond angle vibrations. Results of the MD simulations determine the critical buckling loads of the BNNTs of various diameters under uniaxial compression, and indicate that for the simulated BNNTs of length L = 6 nm, the critical buckling loads increase by increasing the nanotube diameters.

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Periodical:

Defect and Diffusion Forum (Volumes 297-301)

Pages:

984-989

DOI:

https://doi.org/10.4028/www.scientific.net/DDF.297-301.984

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Online since:

April 2010

Authors:

S. Ebrahimi-Nejad, Ali Shokuhfar, A. Zare-Shahabadi

Keywords:

Boron Nitride, Buckling, Molecular Dynamic (MD), Nanotube, Uniaxial Compression

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© 2010 Trans Tech Publications Ltd. All Rights Reserved

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