Wavelike rippling in multiwalled carbon nanotubes under pure bending

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

doi:10.1063/1.3368703

Wavelike rippling in multiwalled carbon nanotubes under pure bending

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

Aerospace Engineering and Mechanics

Research output: Contribution to journal › Article › peer-review

56 Scopus citations

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 language	English (US)
Article number	123107
Journal	Applied Physics Letters
Volume	96
Issue number	12
DOIs	https://doi.org/10.1063/1.3368703
State	Published - 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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title = "Wavelike rippling in multiwalled carbon nanotubes under pure bending",

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.",

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AB - 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.

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Wavelike rippling in multiwalled carbon nanotubes under pure bending

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