Modeling Interactive Buckling of Plate StructuresUsing Special Elements
Publication: Journal of Engineering Mechanics
Volume 126, Issue 12
Abstract
The interaction of local and overall buckling has been analyzed using a novel finite element in which local buckling deformation has been embedded. Amplitude modulation, a key feature of the interactive buckling, has been incorporated in the element formulation. The model has the following additional features: (1) The inclusion of a key secondary local mode where the cross section has complete or approximate double symmetry; and (2) the introduction of a simple approach for capturing localization of local buckling. This involves incorporating a single local buckling mode in the analysis, but allows the amplitude modulation function to be different for different elements. Numerical examples of thin-walled columns are presented to throw light on these issues as well as to demonstrate the accuracy and efficiency of the model.
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Information & Authors
Information
Published In
Journal of Engineering Mechanics
Volume 126 • Issue 12 • December 2000
Pages: 1247 - 1256
History
Received: Mar 28, 2000
Published online: Dec 1, 2000
Published in print: Dec 2000
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