Abstract
Free vibration of sandwich nanobeam is presented in this chapter. The upper and lower sheets are modeled considering Euler-Bernoulli beam formulation and for the core the Timoshenko beam formulation is used taking into account the shear effect. The Non-dimensional procedure is used in order to simplify the analysis of governing equations. The sandwich nanobeam is modeled using Generalized Differential Quadrature (GDQ) method. The influence of the nonlocal parameter (NP) on the first three natural frequencies of Simply Supported - Simply Supported (SS-SS) sandwich nanobeam is discussed . For different edge conditions, mode shapes of the present sandwich nanobeam are discussed. It can be noted that deflection shapes are touched by increasing the NP. For the C-C sandwich nanobeam, natural frequencies are higher than the SS-SS one. Variation of the nonlocal parameter (NP) on the frequencies of the sandwich nanobeam is also investigated for different length . It can be observed that the first frequency have not an important effect for different length, for that, we move to present the second frequency. With increasing the NP the natural frequency decreases clearly. Explication can be regarded as the dispersive behavior of frequencies. The present model can be used as guideline for applications of sandwich nanostructures.
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Kammoun, N., Feki, N., Bouaziz, S., Ben Amar, M., Soula, M., Haddar, M. (2021). Free Vibration of Sandwich Nanobeam. In: Feki, N., Abbes, M.S., Taktak, M., Amine Ben Souf, M., Chaari, F., Haddar, M. (eds) Advances in Acoustics and Vibration III. ICAV 2021. Applied Condition Monitoring, vol 17. Springer, Cham. https://doi.org/10.1007/978-3-030-76517-0_31
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DOI: https://doi.org/10.1007/978-3-030-76517-0_31
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