Steel and Composite Structures

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Numerical modelling and codification of imperfections for cold-formed steel members analysis

  • Dubina, Dan (Department of Steel Structures and Structural Mechanics, Faculty of Civil Engineering, "Politehnica" University of Timisoara) ;
  • Ungureanu, Viorel (Laboratory of Steel Structures, Romanian Academy) ;
  • Rondal, Jacques (Department of Mechanics of Materials and Structures, University of Liege)
  • Received : 2004.12.08
  • Accepted : 2005.05.17
  • Published : 2005.12.25
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Abstract

Buckling and post-buckling of cold-formed steel members are rather difficult to predict due to material and geometrical non-linearity. However, numerical techniques have reached a level of maturity such that many are now successfully undertaking ultimate strength analysis of cold-formed steel members. In numerical non-linear analysis, both geometrical and material imperfections, have to be estimated and properly used. They must be codified in terms of shape and magnitude. The presented paper represents a state-of-art report, including relevant results obtained by the authors and collected from literature, on that problem.

Keywords

References

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