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Solving the three-dimensional equations of the linear theory of elasticity

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The three-dimensional Lamé equations are solved using Cartesian and curvilinear orthogonal coordinates. It is proved that the solution includes only three independent harmonic functions. The general solution of equations of elasticity for stresses is found. The stress tensor is expressed in both coordinate systems in terms of three harmonic functions. The general solution of the problem of elasticity in cylindrical coordinates is presented as an example. The three-dimensional stress–strain state of an elastic cylinder subjected, on the lateral surface, to arbitrary forces represented by a series of eigenfunctions is determined. An axisymmetric problem for a finite cylinder is solved numerically

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  1. Ya. S. Podstrigach Institute for Applied Problems of Mechanics and Mathematics, National Academy of Sciences of Ukraine, 3b Nauchnaya St., Lviv, Ukraine, 79060

    V. P. Revenko

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  1. V. P. Revenko
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Correspondence to V. P. Revenko.

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Translated from Prikladnaya Mekhanika, Vol. 45, No. 7, pp. 52–65, July 2009.

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Revenko, V.P. Solving the three-dimensional equations of the linear theory of elasticity. Int Appl Mech 45, 730–741 (2009). https://doi.org/10.1007/s10778-009-0225-4

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  • DOI: https://doi.org/10.1007/s10778-009-0225-4

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