Analysis of Large‐Diameter Fabricated steel tubes under transverse shear
Publication: Journal of Engineering Mechanics
Volume 115, Issue 12
Abstract
In this study the failure mechanism of cylinders with an ratio equal to 250 is numerically investigated under transverse shear. The effects of geometric imperfections and initial stresses due to manufacturing procedures (cold bending and welding) are considered. Seven models, consisting of combinations of different degrees and patterns of imperfection and residual stresses, are analyzed. All the models lose their stability by buckling in a shear mode. The influence of imperfection on the magnitude of critical load is moderate. By contrast, the locked‐in stress induced in the shell by the manufacturing procedures proves to have a large influence on the magnitude of the critical load. In the postbuckling range, a stable equilibrium path is reached by all models at a lower load level than the initial load. The carrying mechanism at this level resembles a truss with tension diagonals and inclined compressive struts.
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Information
Published In
Journal of Engineering Mechanics
Volume 115 • Issue 12 • December 1989
Pages: 2587 - 2600
Copyright
Copyright © 1989 ASCE.
History
Published online: Dec 1, 1989
Published in print: Dec 1989
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