点击次数：

论文类型：期刊论文

发表时间：2009-10-01

发表刊物：JOURNAL OF COMPUTATIONAL AND THEORETICAL NANOSCIENCE

收录刊物：SCIE、EI、Scopus

卷号：6

期号：10

页面范围：2242-2246

ISSN号：1546-1955

关键字：Nanotubes; Bending Stiffness; Cauchy-Born Rule

摘要：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.