ECONOMICAL NUMERICAL-ANALYTICAL METHOD FOR CALCULATING THREE-DIMENSIONAL DEFORMATIONS OF ELASTIC PIPES OF VARIABLE CROSS SECTION

BURAGO Nikolay G., D. Sc. in Phys.-Math., Leading Researcher, Ishlinsky Institute for Problems in Mechanics of the Russian Academy of Sciences, Moscow, Russia, 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.

NIKITIN Ilya S., D. Sc. in Phys.-Math., Director, Institute of Computer Aided Design of the Russian Academy of Sciences, Moscow, Russia, 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 paper it is shown that the problem of quasistatic three-dimensional stress-strain state of elastic pipes of a variable cross-section under the influence of internal pressure can be solved economically and quickly by a numerical-analytical rapid analysis method based on perturbation theory and the expansion of the solution with respect to a small parameter.

elastic pipes, variable cross-section, internal pressure, perturbation theory, series, small parameter

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