High accuracy curve fits for chirality, length and diameter dependent initial modulus of single walled carbon nanotubes

Anandatheertha, Sunil and Naik, Narayana G and Gopalakrishnan, S and Rao, Subba P (2010) High accuracy curve fits for chirality, length and diameter dependent initial modulus of single walled carbon nanotubes. In: Physica E: Low-dimensional Systems and Nanostructures, 43 (1). pp. 252-255.

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Abstract

Many previous studies regarding the estimation of mechanical properties of single walled carbon nanotubes (SWCNTs) report that, the modulus of SWCNTs is chirality, length and diameter dependent. Here, this dependence is quantitatively described in terms of high accuracy curve fit equations. These equations allow us to estimate the modulus of long SWCNTs (lengths of about 100-120 nm) if the value at the prescribed low lengths (lengths of about 5-10 nm) is known. This is supposed to save huge computational time and expense. Also, based on the observed length dependent behavior of SWCNT initial modulus, we predict that, SWCNT mechanical properties such as Young's modulus, secant modulus, maximum tensile strength, failure strength, maximum tensile strain and failure strain might also exhibit the length dependent behavior along with chirality and length dependence. (C) 2010 Elsevier B.V. All rights reserved.

Item Type:	Journal Article
Publication:	Physica E: Low-dimensional Systems and Nanostructures
Publisher:	Elsevier Science B.V.
Additional Information:	Copyright of this article belongs to Elsevier Science B.V.
Department/Centre:	Division of Mechanical Sciences > Aerospace Engineering(Formerly Aeronautical Engineering)
Date Deposited:	21 Mar 2011 09:43
Last Modified:	21 Mar 2011 09:43
URI:	http://eprints.iisc.ac.in/id/eprint/35986

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