Size- and shape-dependent effective properties of single-walled super carbon nanotubes via a generalized molecular structure mechanics method

Xia Liu; Qingsheng Yang; Xiaoqiao He; Kim Meow Liew

doi:10.1016/j.commatsci.2012.03.038

Author(s)

Xia Liu
Qingsheng Yang
Xiaoqiao He
Kim Meow Liew

Detail(s)

Original language	English
Pages (from-to)	27-33
Journal / Publication	Computational Materials Science
Volume	61
Publication status	Published - Aug 2012

Link(s)

DOI	DOI https://doi.org/10.1016/j.commatsci.2012.03.038 Final Published version
	Check@CityULib
Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-84861634613&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(9a3a3ccf-210e-48c7-b827-57065f795d73).html

Abstract

A super carbon nanotube (SCNT) is a cylinder rolled up from a super graphene (SG) layer which is built by connecting Y-type single walled carbon nanotube (SWCNT) junctions. The unique structure of the SCNT results in two determinants of radius of the SCNT, the number of junctions along the circumferential direction of the SCNT and length of the constituent SWCNTs. The mechanical behaviors of the SCNTs are investigated by using a generalized molecular structure mechanics (MSMs) method which is generated by combining the MSM method with the failure criterion of the carbon-carbon bonds. The results show that number of junctions along the circumferential direction of the SCNTs and length of the constituent SWCNTs both have obvious effect on deformation process of the SCNTs. Moreover, the size- and shape-dependence of the Young's modulus and Poisson's ratio of the SCNTs are calculated by the generalized MSM method. Exact relations between the mechanical properties of the SCNTs and their size which can reasonably fit the computed results are provided. © 2012 Elsevier B.V. All rights reserved.

Research Area(s)

Generalized molecular structure mechanics method, Mechanical properties, Shape- and size-dependence, Super carbon nanotubes

Citation Format(s)

[ RIS ] [ BibTeX ]

Size- and shape-dependent effective properties of single-walled super carbon nanotubes via a generalized molecular structure mechanics method. / Liu, Xia; Yang, Qingsheng; He, Xiaoqiao et al.
In: Computational Materials Science, Vol. 61, 08.2012, p. 27-33.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review

Liu, X, Yang, Q, He, X & Liew, KM 2012, 'Size- and shape-dependent effective properties of single-walled super carbon nanotubes via a generalized molecular structure mechanics method', Computational Materials Science, vol. 61, pp. 27-33. https://doi.org/10.1016/j.commatsci.2012.03.038

Liu, X., Yang, Q., He, X., & Liew, K. M. (2012). Size- and shape-dependent effective properties of single-walled super carbon nanotubes via a generalized molecular structure mechanics method. Computational Materials Science, 61, 27-33. https://doi.org/10.1016/j.commatsci.2012.03.038

Liu X, Yang Q, He X , Liew KM. Size- and shape-dependent effective properties of single-walled super carbon nanotubes via a generalized molecular structure mechanics method. Computational Materials Science. 2012 Aug;61:27-33. doi: 10.1016/j.commatsci.2012.03.038

Liu, Xia ; Yang, Qingsheng ; He, Xiaoqiao et al. / Size- and shape-dependent effective properties of single-walled super carbon nanotubes via a generalized molecular structure mechanics method. In: Computational Materials Science. 2012 ; Vol. 61. pp. 27-33.