Startseite Free vibrations of nanobeams under non-ideal supports based on modified couple stress theory
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Free vibrations of nanobeams under non-ideal supports based on modified couple stress theory

  • Duygu Atcı EMAIL logo
Veröffentlicht/Copyright: 18. Februar 2021

Abstract

In this study, free vibration analysis of nanobeams under various non-ideal supports have presented. Size effect of nanobeams has applied by utilizing modified couple stress theory. Hamilton’s principle has been used to derive the equation of motion. Governing equation has subjected to non-ideal boundary conditions which are modeled as linear functions including an introduced weighting factor (k). Obtained numerical results have verified by comparing with the published results. Results show that fundamental resonance frequencies of non-ideal clamped nanobeams are significantly decreased when it is compared to ideal supports. However, non-ideal simply supports creates a minor increase effect on fundamental frequencies with respect to clamped ones. Also, nano-size effect has investigated for non-ideal supports. It has found that, the smaller cross-sectional size of nanobeam causes increasing effect of non-ideal supports on fundamental frequencies.


Corresponding author: Duygu Atcı, Department of Mechatronics Engineering, İzmir Katip Çelebi University, İzmir, Turkey, E-mail:

  1. Author contribution: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.

  2. Research funding: None declared.

  3. Conflict of interest statement: The authors declare no conflicts of interest regarding this article.

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Received: 2020-12-07
Accepted: 2021-01-29
Published Online: 2021-02-18
Published in Print: 2021-05-26

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Heruntergeladen am 3.12.2025 von https://www.degruyterbrill.com/document/doi/10.1515/zna-2020-0335/html
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