TY - JOUR
T1 - Variable separation method for solving boundary value problems of isotropic linearly viscoelastic bodies
AU - Svetashkov, A. A.
AU - Kupriyanov, N. A.
AU - Pavlov, M. S.
AU - Vakurov, A. A.
PY - 2020/9/1
Y1 - 2020/9/1
N2 - 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.
AB - 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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U2 - 10.1007/s00707-020-02698-4
DO - 10.1007/s00707-020-02698-4
M3 - Article
AN - SCOPUS:85087061602
VL - 231
SP - 3583
EP - 3606
JO - Acta Mechanica
JF - Acta Mechanica
SN - 0001-5970
IS - 9
ER -