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Erschienen in: Acta Mechanica 9/2020

25.06.2020 | Original Paper

Variable separation method for solving boundary value problems of isotropic linearly viscoelastic bodies

verfasst von: A. A. Svetashkov, N. A. Kupriyanov, M. S. Pavlov, A. A. Vakurov

Erschienen in: Acta Mechanica | Ausgabe 9/2020

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Abstract

The availability of accurate methods to mathematically model and predict the behavior of viscoelastic structures under mechanical, thermal and other loads remains a critical issue in different fields ranging from construction engineering to aerospace. Methods to calculate elastic structures are well developed; however, considering that viscoelastic properties require significant effort, we have developed and tested a new analytical method to solve boundary problems of isotropic linearly viscoelastic bodies. According to the proposed algorithm, to find the solution for a linear viscoelasticity boundary problem, we must replace the elastic constants with some functions of time and then numerically or analytically calculate the stress–strain state of the structure at any moment of its loading history. As a result of the theoretical justification of the proposed method, carried out in three independent ways, identical expressions of effective modules are obtained. The obtained results, as well as testing on solutions to several problems, allow us to conclude that the new analytical method is applicable to the calculation of the stress–strain state of viscoelastic bodies.
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Metadaten
Titel
Variable separation method for solving boundary value problems of isotropic linearly viscoelastic bodies
verfasst von
A. A. Svetashkov
N. A. Kupriyanov
M. S. Pavlov
A. A. Vakurov
Publikationsdatum
25.06.2020
Verlag
Springer Vienna
Erschienen in
Acta Mechanica / Ausgabe 9/2020
Print ISSN: 0001-5970
Elektronische ISSN: 1619-6937
DOI
https://doi.org/10.1007/s00707-020-02698-4

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