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Indexed by:期刊论文

Date of Publication:2009-10-01

Journal:JOURNAL OF COMPUTATIONAL AND THEORETICAL NANOSCIENCE

Included Journals:SCIE、EI、Scopus

Volume:6

Issue:10

Page Number:2242-2246

ISSN No.:1546-1955

Key Words:Nanotubes; Bending Stiffness; Cauchy-Born Rule

Abstract:In this paper, some basic problems on the study of the bending stiffness of carbon nanotubes (CNTs) are discussed. It is pointed out that the bending stiffness of a flat graphite sheet, an intrinsic material property, and that of CNTs formed by rolling up graphite sheets, a structural property, should be clearly discriminated. It is also indicated that since the smeared-out model of CNTs is a generalized continuum with microstructure, cautions should be taken when classic formula in the mechanics of materials is used to evaluate the bending stiffness of CNTs and extract the mechanical properties from experiment data.