CALCULATION OF ELASTIC DEFLECTIONS OF THIN STIFF PLATES BASED ON THE FINITE ELEMENTS METHOD OUT OF THE KIRCHHOFF’S THEORY

GEVORGYAN Hrant A., Ph. D. in Eng., Researcher, Institute of Mechanics of the National Academy of Sciences of the Republic of Armenia, Yerevan, Republic of Armenia, This email address is being protected from spambots. You need JavaScript enabled to view it.">This email address is being protected from spambots. You need JavaScript enabled to view it.

In this article numerical results, obtained by the FEM planе-spatial problem solution, in the case of an elastic flexion problem about rectangular freely supported under action of evenly distributed load of homogeneous and isotropic thin stiff plates, are discussed. A comparison analysis of results, generated, on the one side, without respect of the Kirchhoff’s hypothesis, and, on the other side, by the Navier’s method within the limits of the Kirchhoff’s hypothesis justify respecting to this class of problems a high efficiency of the FEM new modification compared to the methods using the Kirchhoff’s hypothesis.

finite element method, Navier’s method, Kirchhoff’s theory, plane-spatial problem, normal invariability hypothesis, thin stiff plates, membranes, relative function of deflections

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