Coordinated buckling of thick multi-walled carbon nanotubes under uniaxial compression

Xu Huang, Hongyan Yuan, K. Jimmy Hsia, Sulin Zhang

Research output: Contribution to journalArticle

Abstract

Using a generalized quasi-continuum method, we characterize the post-buckling morphologies and energetics of thick multi-walled carbon nanotubes (MWCNTs) under uniaxial compression. Our simulations identify for the first time evolving post-buckling morphologies, ranging from asymmetric periodic rippling to a helical diamond pattern. We attribute the evolving morphologies to the coordinated buckling of the constituent shells. The post-buckling morphologies result in significantly reduced effective moduli that are strongly dependent on the aspect ratio. Our simulation results provide fundamental principles to guide the future design of high-performance, MWCNT-based nanodevices.

Original languageEnglish (US)
Pages (from-to)32-42
Number of pages11
JournalNano Research
Volume3
Issue number1
DOIs
StatePublished - Jan 2010

Keywords

  • Buckling
  • Carbon nanotubes
  • Rippling
  • Uniaxial compression

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Materials Science(all)

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