Abstract
The paper discusses the impact of the material properties of transversely isotropic circular plates on its natural frequencies. Two refined theories of plates have been used to analyze the free vibration behavior of homogeneous plates. Both theories take into account normal and rotary inertias. Fundamental frequencies for plates with radial inhomogeneity have been obtained with the help of finite element package Comsol Multiphysics 5.0. It has been shown that the inhomogeneity of the plate have a profound impact on the first (lowest) frequency of the plate, while the plate orthotropy has a greater influence on the second and higher vibration mode [2] (Fig. 1, Table 1).
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References
S. A. Ambartsumyan, Theory of Anisotropic Plates (Technomic, Stanford, 1970; Nauka, Moscow, 1967).
V. A. Rodionova, V. F. Titaev, and K. F. Chernykh, Applied Theory of Anisotropic Plates and Shells (S.-Peterb. Univ., St. Petersburg, 1996) [in Russian].
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Original Russian Text © S.M. Bauer, E.B. Voronkova, 2016, published in Vestnik Sankt-Peterburgskogo Universiteta. Seriya 1. Matematika, Mekhanika, Astronomiya, 2016, No. 1, pp. 105–109.
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Bauer, S.M., Voronkova, E.B. On natural frequencies of transversely isotropic circular plates. Vestnik St.Petersb. Univ.Math. 49, 77–80 (2016). https://doi.org/10.3103/S1063454116010027
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DOI: https://doi.org/10.3103/S1063454116010027