Wavelike rippling in multiwalled carbon nanotubes under pure bending

I. Nikiforov, D. B. Zhang, R. D. James, T. Dumitric̀

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Abstract

Objective molecular dynamics is used to systematically investigate elastic bending in carbon nanotubes up to 4.2 nm in diameter. A contrasting behavior is revealed: While single-wall tubes buckle in a gradual way, with a clear intermediate regime before they fully buckle, multiwalled tubes with closed cores exhibit a rate- and size-independent direct transition to an unusual wavelike mode with a 1 nm characteristic length. This rippling mode has a nearly-linear bending response and causes a ∼35% reduction in the stiffness of the thickest multiwalled tubes.

Original languageEnglish (US)
Article number123107
JournalApplied Physics Letters
Volume96
Issue number12
DOIs
StatePublished - 2010

Bibliographical note

Funding Information:
We thank NSF CAREER under Grant No. CMMI-0747684 and AFOSR Grant No. FA9550-09-1-0339. Computations performed at the Minnesota Supercomputing Institute.

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