Features of the numerical calculation of separately standing chimneys in software packages (analysis of the female sex)

Authors

  • V. V. Gubanov Donbass National Academy of Civil Engineering and Architecture, Heroes of Heavenly Hundreds (Lazo), 14, 84333 Kramatorsk, Ukraine, Ukraine
  • T. Lahmer Study Group 1462, Bauhaus-University Weimar, Study Group "Model Validation in Structural Design", Germany, Germany
  • A. Kulchytskyy Donbass National Academy of Civil Engineering and Architecture, Heroes of Heavenly Hundreds (Lazo), 14, 84333 Kramatorsk, Ukraine, Ukraine

Keywords:

chimney, calculation scheme, dimple, numerical methods, the base, equivalent stresses, local stresses, cylindrical shell

Abstract

The following different calculation schemes for modeling free-standing chim­neys were considered: rod scheme, which uses a cantilever rod with constant cross section: ideal cylindrical shell model, analyzed with the ANSYS Workbench 14.0 software package; ideal cylindrical shell model that considers the base, created in the ANSYS Workbench 14.0 software package, and also non-ideal cylindrical shell model with a geometric deviation in form of a dimple. The obtained values of the equivalent stress (von Mises stress - σeq) for the perfect shell in PC ANSYS were compared with the principal stresses (σx), which were defined analytically as equiva­lent stresses (σeq) both for the ideal and for the dimple model. The comparison showed a discrepancy of 15% between the values for the perfect shells and 65% for the concave shell.

Author Biography

V. V. Gubanov, Donbass National Academy of Civil Engineering and Architecture, Heroes of Heavenly Hundreds (Lazo), 14, 84333 Kramatorsk, Ukraine

Doctor of technical sciences; Professor of the Department of Metal Constructions and Structures

References

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Published

2013-10-18

Issue

Section

Life Safety