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Imperfection amplitudes for nonlinear analysis of open thin-walled steel cross-sections used in rack column uprights

Author
Pastor, M.M.; Casafont, M.; Bonada, J.; Roure, F.
Type of activity
Journal article
Journal
Thin-walled structures
Date of publication
2014-03-01
Volume
76
First page
28
Last page
41
DOI
https://doi.org/10.1016/j.tws.2013.10.025 Open in new window
Repository
http://hdl.handle.net/2117/20890 Open in new window
URL
http://www.sciencedirect.com/science/article/pii/S0263823113002863 Open in new window
Abstract
When numerical models are used to predict behaviour of open thin-walled steel cross-sections, the nonlinear analysis results can be influenced by the magnitudes introduced as initial imperfection. At present, a wide range of values is considered in research concerning this topic. This paper explores up to what point the nonlinear analysis results are sensitive to the choice of imperfection magnitudes and attempt to refine the spectrum of magnitudes that should be used. The study focuses on rack ...
Citation
Pastor, M. [et al.]. Imperfection amplitudes for nonlinear analysis of open thin-walled steel cross-sections used in rack column uprights. "Thin-walled structures", Març 2014, vol. 76, p. 28-41.
Keywords
BEHAVIOR, COLD-FORMED STEEL, COMPRESSION, DESIGN CONSIDERATIONS, FE analysis, Initial geometrical imperfections, LIPPED CHANNEL COLUMNS, MEMBERS, Rack column uprights
Group of research
REMM - Structures and Mechanics of Materials Research