Local-global mode interaction in box-section struts under axial compression
File(s)
Author(s)
Shen, J
Wadee, MA
Sadowski, AJ
Type
Conference Paper
Abstract
An analytical model describing the interactive buckling of a thin-walled box-section strut under axial compression, where global buckling is critical, is formulated based on variational principles. A system of nonlinear differential and integral equations subject to boundary conditions are derived and solved using numerical continuation. The results show that when the local buckling load is close to the global buckling load, unstable interactive buckling dominates. Equilibrium behaviour, characterized by the equilibrium paths and the progressive change in local buckling wavelength, is highlighted. The results from the analytical model have been validated using the finite element method in conjunction with the static Riks method and show excellent comparisons.
Editor(s)
Schafer, BW
Ayhan, D
Date Issued
2016-11-07
Date Acceptance
2016-07-02
Citation
Proceedings of the 7th international conference on coupled instabilities in metal structures, 2016
Publisher
CIMS
Journal / Book Title
Proceedings of the 7th international conference on coupled instabilities in metal structures
Copyright Statement
© 2016 The Authors
Source
Coupled Instabilities in Metal Structures
Publication Status
Published
Start Date
2016-11-07
Finish Date
2016-11-08
Coverage Spatial
Baltimore, USA