Abstract
This study investigates the mechanical characteristics of single-walled carbon nanotubes (CNTs) inside open single-walled carbon nanocones (CNCs). New semi-analytical expressions are presented to evaluate van der Waals (vdW) interactions between CNTs and open CNCs. Continuum approximation, along with the the Lennard-Jones (LJ) potential function, is used in this study. The effects of geometrical parameters on alterations in vdW potential energy and the interaction force are extensively examined for the concentric CNT-open CNC configuration. The CNT is assumed to enter the nanocone either through the small end or the wide end of the cone. The preferred position of the CNT with respect to the nanocone axis is fully investigated for various geometrical parameters. The optimum nanotube radius minimizing the total potential energy of the concentric configuration is determined for different radii of the small end of the cone. The examined configuration generates asymmetric oscillation; thus, the system constitutes a nano-oscillator.
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Recommended by Associate Editor Jun-Sik Kim
Reza Ansari received his Ph.D. from the University of Guilan, Iran in 2008. During his Ph.D. studies, he was also a visiting fellow at Wollongong University in Australia from 2006 to 2007. He is currently a faculty member of the Department of Mechanical Engineering, University of Guilan. He authored more than 100 journal articles and 12 book chapters. His research background and interests include computational nano/micromechanics, advanced numerical techniques, nonlinear analyses, and prediction of the mechanical behavior of smart composite/FGM shell-type structures.
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Ansari, R., Hosseinzadeh, M. Mechanics of single-walled carbon nanotubes inside open single-walled carbon nanocones. J Mech Sci Technol 27, 3363–3370 (2013). https://doi.org/10.1007/s12206-013-0858-4
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DOI: https://doi.org/10.1007/s12206-013-0858-4