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IssuesArchive of Issues2015-4pp.379-388

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V.V. Vasil'ev and S.A. Lurie, "Generalized Theory of Elasticity," Mech. Solids. 50 (4), 379-388 (2015)
Year 2015 Volume 50 Number 4 Pages 379-388
DOI 10.3103/S0025654415040032
Title Generalized Theory of Elasticity
Author(s) V.V. Vasil'ev (Moscow State Aviation Technological University, ul. Orshanskaya 3, Moscow, 121552 Russia, vvvas@dol.ru)
S.A. Lurie (Dorodnicyn Computing Center, Russian Academy of Sciences, ul. Vavilova 40, Moscow, 119333 Russia; A. Ishlinsky Institute for Problems in Mechanics, Russian Academy of Sciences, pr. Vernadskogo 101, str. 1, Moscow, 119526 Russia, lurie@ccas.ru)
Abstract We obtain elasticity equations of higher (in the general case, infinite) order than the equations of the classical theory. In contrast to the numerous known versions of the nonclassical theory (Cosserat, nonsymmetric, microstructure, micropolar, multipolar, and gradient), which also result in higher-order equations and contain elasticity relations for traditional and couple stresses with a large number of elastic constants, our theory, regardless of the order of the equations, contains only one additional constant, which can be expressed in terms of the microstructure parameter of the medium. The basic equations of the generalized theory are presented for one-, two-, and three-dimensional problems; these equations take into account the stress gradients and can be written in terms of generalized stresses, strains, and displacements. A boundary value problem that does not require the introduction of couple stresses is stated for the generalized theory of elasticity.
Keywords theory of elasticity, nonclassical theory of elasticity, generalized stresses, microstructure parameter
References
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9.  S. A. Lurie, P. A. Belov, and N. P. Tuchkova, "Gradient Theory of Media with Conversed Dislocations: Applications to Microstructured Materials," in Advances in Mechanics and Mathematics, Vol. 21: Book of Mechanics of Generalized Continua: One Hundred Years after the Cosserats, Ed. by G. A. Maugin and A. V. Metrikine (Springer, 2010), pp. 223-232.
10.  S. Lurie, D. Volkov-Bogorodsky, V. Zubov, and N. Tuchkova, "Advanced Theoretical and Numerical Multiscale Modeling of Cohesion/Adhesion Interactions in Continuum Mechanics and Its Applications for Filled Nanocomposites," Comput. Mater. Sci. 45 (3), 709-714 (2009).
11.  S. Lurie, D. Volkov-Bogorodsky, A. Leontiev, and E. Aifantis, "Eshelby's Inclusion Problem in the Gradient Theory of Elasticity. Applications to Composite Materials," Int. J. Engng Sci. 49, 1517-1525 (2011).
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14.  V. V. Vasil'ev and S. A. Lurie, "On the Solution Singularity in the Plane Elasticity Problem for a Cantilever Strip," Izv. Akad. Nauk. Mekh. Tverd. Tela, No. 4, 40-49 (2013) [Mech. Solids (Engl. Transl.) 48 (4), 388-396 (2013)].
Received 20 November 2014
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