Local buckling of carbon nanotubes under bending

Qing-Guo Wang, K. M. Liew, X. Q. He, Yang Xiang

    Research output: Contribution to journalArticle

    38 Citations (Scopus)

    Abstract

    The discovery of a local buckling instability of a single-walled carbon nanotube CNT that is subjected to point loading in its flexural direction through molecular mechanics simulations via the MATERIALS STUDIO software package is reported in the letter. The sudden decrease of the stiffness of the CNT at the onset of the local instability is found from reliable observations of the second derivation of the strain energy of the CNT under bending. A mechanics model is developed to predict the onset of the local instability, and the effectiveness of the model is verified by molecular mechanics simulations.
    Original languageEnglish
    Number of pages3
    JournalApplied Physics Letters
    Publication statusPublished - 2007

    Open Access - Access Right Statement

    © 2007 American Institute of Physics. Redistribution subject to AIP license or copyright; see http://apl.aip.org/apl/copyright.jsp

    Keywords

    • bending
    • buckling (mechanics)
    • mechanics
    • molecular
    • nanotubes
    • simulations

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