Mechanics of Solids (about journal) Mechanics of Solids
A Journal of Russian Academy of Sciences
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IssuesArchive of Issues2020-5pp.716-727

Archive of Issues

Total articles in the database: 4932
In Russian (. . ): 2364
In English (Mech. Solids): 2568

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S.L. Denisov, V.F. Kopyev, A.L. Medvedsky, and N.N. Ostrikov, "Investigation of the Problems of Durability of Orthotropic Polygonal Plates under Broadband Acoustic Exposure Taking into Account the Effects of Radiation," Mech. Solids. 55 (5), 716-727 (2020)
Year 2020 Volume 55 Number 5 Pages 716-727
DOI 10.3103/S0025654420300019
Title Investigation of the Problems of Durability of Orthotropic Polygonal Plates under Broadband Acoustic Exposure Taking into Account the Effects of Radiation
Author(s) S.L. Denisov (Central Aerohydrodynamic Institute named after N.E. Zhukovsky (TsAGI), Zhukovskii, Moscow oblast, 140180 Russia, stanislav.denisov@tsagi.ru)
V.F. Kopyev (Central Aerohydrodynamic Institute named after N.E. Zhukovsky (TsAGI), Zhukovskii, Moscow oblast, 140180 Russia)
A.L. Medvedsky (Central Aerohydrodynamic Institute named after N.E. Zhukovsky (TsAGI), Zhukovskii, Moscow oblast, 140180 Russia, aleksandr.medvedskiy@tsagi.ru)
N.N. Ostrikov (Central Aerohydrodynamic Institute named after N.E. Zhukovsky (TsAGI), Zhukovskii, Moscow oblast, 140180 Russia)
Abstract The article considers the problems of calculating the durability of orthotropic polygonal plates, described in the framework of the Kirchhoff theory and subjected to acoustic action with a wide spectrum, taking into account the effects of sound re-emission. A hybrid numerical-analytical method for solving the problem is proposed, based on the determination of the eigenmodes and vibration frequencies of the plate using the finite element method (FEM) with the subsequent calculation of the moments of the spectral density of rms stresses using the 5th order Gaussian quadratures. The article calculates the durability of a polygonal orthotropic fiberglass plate using four different methods (intersection method, Kowalewski method, Bolotin method and Reicher method) with a diffuse distribution of the sound field over the plate surface and random broadband acoustic exposure.
Keywords durability, acoustic loading, spectral density of generalized forces, finite element method (FEM), re-emission of sound, mutual spectral density
Received 11 January 2020Revised 18 January 2020Accepted 25 January 2020
Link to Fulltext https://link.springer.com/article/10.3103/S0025654420300019
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