Timoshenko beam model for the vibration analysis of a cracked nanobeam with surface energy

Kaifa Wang, Baolin Wang

    Research output: Contribution to journalArticle

    Abstract

    Free vibration of a cracked nanobeam with consideration of surface energy and transverse shear deformation is studied. The cracked nanobeam is simplified to a system of two segments joined by a rotational spring located at the cracked section. Numerical examples demonstrate that the surface energy increases the natural frequency of the beam. However, the influence of surface energy on the natural frequency becomes smaller for the higher modes. In addition, the effect of transverse shear deformation on the frequency becomes more significant for the higher modes.
    Original languageEnglish
    Pages (from-to)2452-2464
    Number of pages13
    JournalJVC/Journal of Vibration and Control
    Volume21
    Issue number12
    DOIs
    Publication statusPublished - 2015

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