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1 2021

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Free vibrations of microstructured functionally graded plate band with clamped edges

Kaźmierczak-Sobińska Magda, Jędrysiak Jarosław

Vibrations in Physical Systems

2021

Vol. 32, nr 2

art. no. 2021216

In this paper there are presented free vibrations of thin functionally graded plate band. This kind of plates has tolerance-periodic microstructure on the microlevel in planes parallel to the plate midplane. Dynamic problems of plates of this kind are described by partial differential equations with highly oscillating, tolerance-periodic, non-continuous coefficients. Thus, there are proposed here two models describing these plates by equations with smooth, slowly-varying coefficients. As an example there are analyses of free vibration frequencies for thin functionally graded plate band clamped on both edges. Using the known Ritz method the frequencies are obtained in the framework of proposed two models - the tolerance model and the asymptotic model.