Bending buckling of single-walled carbon nanotubes by atomic-scale finite element

X. Guo, A. Y T Leung*, X. Q. He, H. Jiang, Y. Huang

*Corresponding author for this work

Research output: Contribution to journalArticle

42 Scopus citations

Abstract

This paper employs the atomic-scale finite element method to study bending buckling of single-walled carbon nanotubes (SWNTs). As the bending angle increases, kinks will appear and the morphology of the SWNT will change abruptly. The (15, 0) SWNT changes into a one-kinked structure, and finally contains two kinks; while the (10, 0) SWNT changes into a one-kinked structure, then into a two-kinked one, and finally contains three kinks. Strain energy grows initially as a quadratic function of bending angle, then increases gradually slowly, and finally changes approximately linearly. The energy releases suddenly at morphology bifurcations and the amount depends on degree of morphology change. The simulation shows that the appearance of kinks associated with the large deformation nearby reduces the slope of the strain energy curve in the post-buckling stages and hence increases the flexibility of the SWNTs.

Original languageEnglish (US)
Pages (from-to)202-208
Number of pages7
JournalComposites Part B: Engineering
Volume39
Issue number1
DOIs
StatePublished - Jan 1 2008

Keywords

  • A. Nano-structures
  • B. Buckling
  • C. Computational modelling
  • Morphology change

ASJC Scopus subject areas

  • Ceramics and Composites
  • Mechanics of Materials
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering

Fingerprint Dive into the research topics of 'Bending buckling of single-walled carbon nanotubes by atomic-scale finite element'. Together they form a unique fingerprint.

  • Cite this