Chirality dependent elastic properties of single-walled boron nitride nanotubes under uniaxial and torsional loading

Krishnan, Anoop NM and Ghosh, Debraj (2014) Chirality dependent elastic properties of single-walled boron nitride nanotubes under uniaxial and torsional loading. In: JOURNAL OF APPLIED PHYSICS, 115 (6).

PDF jou_app_phy_115-6_2014.pdf - Published Version Restricted to Registered users only Download (709kB) | Request a copy

Abstract

The elastic behavior of single-walled boron nitride nanotubes is studied under axial and torsional loading. Molecular dynamics simulation is carried out with a tersoff potential for modeling the interatomic interactions. Different chiral configurations with similar diameter are considered to study the effect of chirality on the elastic and shear moduli. Furthermore, the effects of tube length on elastic modulus are also studied by considering different aspects ratios. It is observed that both elastic and shear moduli depend upon the chirality of a nanotube. For aspect ratios less than 15, the elastic modulus reduces monotonically with an increase in the chiral angle. For chiral nanotubes, the torsional response shows a dependence on the direction of loading. The difference between the shear moduli against and along the chiral twist directions is maximum for chiral angle of 15 degrees, and zero for zigzag (0 degrees) and armchair (30 degrees) configurations. (C) 2014 AIP Publishing LLC.

Item Type:	Journal Article
Publication:	JOURNAL OF APPLIED PHYSICS
Publisher:	AMER INST PHYSICS
Additional Information:	Copyright for this article belongs to the AMER INST PHYSICS, USA
Department/Centre:	Division of Mechanical Sciences > Civil Engineering
Date Deposited:	16 Apr 2014 10:40
Last Modified:	16 Apr 2014 10:41
URI:	http://eprints.iisc.ac.in/id/eprint/48864

Actions (login required)

View Item