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The computation of bending eigenfrequencies of single-walled carbon nanotubes based on the nonlocal theory

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Mechanical Sciences

Copernicus GmbH

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      Abstract

      <p><strong>Abstract.</strong> In this work, a recently proposed nonlocal theory of bending is used in the analysis of eigenfrequencies of single-walled carbon nanotubes (SWCNTs). The nanotube vibration is analyzed in the form of a homogenized continuum. Classical treatment where a nanotube is approximated by standard beam theory, is replaced by the more sophisticated nonlocal method of material interactions where a nonlocal parameter is used. The eigenfrequencies are computed by the combination of analytical as well as numerical methods for four different carbon nanotube (CNT) supports. Various types of supports are considered for the analysis: fixed–simply supported, fixed–free, simply–simply supported and fixed–fixed. Due to the huge amount of computed data, only outcomes of eigenfrequency computations for the nanobeams of armchair type with fixed and simply supported ends, and different nonlocal parameters are represented in the form of graphs at the end of the article. The study shows how the nanotube eigenfrequencies depend on nonlocal parameters as well as on the length and diameter of CNTs. The obtained results are in good agreement with the results published in papers which were gained by different procedures.</p>

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            Author and article information

            Journal
            Mechanical Sciences
            Mech. Sci.
            Copernicus GmbH
            2191-916X
            2018
            November 01 2018
            : 9
            : 2
            : 349-358
            10.5194/ms-9-349-2018
            © 2018

            https://creativecommons.org/licenses/by/4.0/

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            Self URI (article page): https://www.mech-sci.net/9/349/2018/

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