Published: 2016-06-30

Properties of numerical solution of the deformation and stability problem in shallow conical shells under external pressure

Vasily Krasovsky , Alexey Karasev

Abstract

The paper presents an analysis of a numerical solution in the ANSYS software to three problems related to determination of deformations and stability of closed shallow conical shells under external pressure: 1) linear (bifurcation) problem of determining the critical pressure; 2) geometrically non-linear problem of shell deformation and buckling to determine the limit pressure using axisymmetric finite elements (FE); 3) solution to the same problem as set out in 2, yet using 4-node shell elements. The solutions presented in the paper concern the stationary state of a simply supported and fixed shell. Shallow conical shells are applied as load bearing and protective elements of bridge structures.

Keywords:

external pressure, deformations, numerical solution, shallow conical shell, software package, stability

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Krasovsky, V., & Karasev, A. (2016). Properties of numerical solution of the deformation and stability problem in shallow conical shells under external pressure. Roads and Bridges - Drogi I Mosty, 15(2), 117–135. https://doi.org/10.7409/rabdim.016.008

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