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Abstract
The initial post-buckling behaviour of a cold-formed channel member flange after its local buckling is investigated. An axially compressed column or beam subjected to pure bending is considered. The member material is assumed to follow a linear stress-strain relationship. The governing non-linear differential equation of the problem is derived using the minimum total potential energy principle. An approximate solution for the equation is found by means of the perturbation approach, which allows obtaining the critical buckling stress and the initial post-buckling equilibrium path. The bifurcation point is shown to be symmetric and stable. The proposed analytical solution is compared with finite element method (FEM) and finite strip method (FSM) results to check the validity and range of applicability.
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- Category:
- Articles
- Type:
- artykuł w czasopiśmie wyróżnionym w JCR
- Published in:
-
THIN-WALLED STRUCTURES
no. 137,
pages 177 - 184,
ISSN: 0263-8231 - Language:
- English
- Publication year:
- 2019
- Bibliographic description:
- Szymczak C., Kujawa M.: Buckling and initial post-local buckling behaviour of cold-formed channel member flange// THIN-WALLED STRUCTURES. -Vol. 137, (2019), s.177-184
- DOI:
- Digital Object Identifier (open in new tab) 10.1016/j.tws.2019.01.011
- Verified by:
- Gdańsk University of Technology
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