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Работа посвящена проблеме исследования механических свойств полимерных покрытий на неорганической подложке. Проведено сравнение собственных частот колебаний и логарифмического декремента затухания для композита, полученных методом конечных элементов, и рассчитанных, соответственно по «правилу смесей» для частоти аналитическим соотношениям для декремента затухания. Определены границы применимости указанных аналитических подходов.
The work is devoted to the problem of studying the mechanical properties of poly-mer coatings on an inorganic substrate. A comparison was made between the eigenfre-quencies and the logarithmic damping decrement for the composite, obtained by the finite element method, and calculated according to the “mixture rule” for the frequency and an-alytical expressions for the logarithmic decrement. The limits of applicability of these ana-lytical approaches are determined.
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