Critical strain of carbon nanotubes

An atomic-scale finite element study

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

*Corresponding author for this work

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

This paper employs the atomic-scale finite element method (AFEM) to study critical strain of axial buckling for carbon nanotubes (CNTs). Brenner et al. "second-generation" empirical potential is used to model covalent bonds among atoms. The computed energy curve and critical strain for (8, 0) single-walled CNT (SWNT) agree well with molecular dynamics simulations. Both local and global buckling are achieved, two corresponding buckling zones are obtained, and the global buckling behavior of SWNT with a larger aspect ratio approaches gradually to that of a column described by Euler's formula. For double-walled CNTs with smaller ratio of length to outer diameter, the local buckling behavior can be explained by conventional shell theory very well. AFEM is an efficient way to study buckling of CNTs.

Original languageEnglish (US)
Pages (from-to)347-351
Number of pages5
JournalJournal of Applied Mechanics, Transactions ASME
Volume74
Issue number2
DOIs
StatePublished - Mar 1 2007

Fingerprint

buckling
Buckling
Carbon nanotubes
carbon nanotubes
finite element method
shell theory
Finite element method
Covalent bonds
covalent bonds
Single-walled carbon nanotubes (SWCN)
Molecular dynamics
aspect ratio
Aspect ratio
molecular dynamics
Atoms
Computer simulation
curves
atoms
simulation

ASJC Scopus subject areas

  • Mechanics of Materials
  • Computational Mechanics

Cite this

Guo, X. ; Leung, A. Y T ; Jiang, H. ; He, X. Q. ; Huang, Y. / Critical strain of carbon nanotubes : An atomic-scale finite element study. In: Journal of Applied Mechanics, Transactions ASME. 2007 ; Vol. 74, No. 2. pp. 347-351.
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Critical strain of carbon nanotubes : An atomic-scale finite element study. / Guo, X.; Leung, A. Y T; Jiang, H.; He, X. Q.; Huang, Y.

In: Journal of Applied Mechanics, Transactions ASME, Vol. 74, No. 2, 01.03.2007, p. 347-351.

Research output: Contribution to journalArticle

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