Web crippling strength of cold-formed stainless steel lipped channels with web perforations under end-two-flange loading

Amir M. Yousefi, Asraf Uzzaman, James B.P. Lim, G. Charles Clifton, Ben Young

Research output: Contribution to journalArticle

17 Citations (Scopus)
145 Downloads (Pure)

Abstract

This paper presents a finite element investigation into the web crippling strength of cold-formed stainless steel lipped channels with circular web perforations under end-two-flange (ETF) loading. The cases of web openings located both centred and offset to the load bearing plates, are considered. In order to take into account the influence of the circular web openings, a parametric study involving 2,190 finite element analyses was performed, covering duplex EN1.4462, austenitic EN1.4404 and ferretic EN1.4003 stainless steel grades; from the results of the parametric study, strength reduction factor equations are determined. The strength reduction factor equations are first compared to equations recently proposed for cold-formed carbon steel lipped channels. It is demonstrated that the strength reduction factor equations proposed for cold-formed carbon steel are conservative for the stainless steel grades by up to 10%. New coefficients for web crippling strength reduction factor equations are then proposed that can be applied to all three stainless steel grades.
Original languageEnglish
Pages (from-to)1-46
Number of pages46
JournalAdvances in Structural Engineering
Early online date9 Mar 2017
DOIs
Publication statusE-pub ahead of print - 9 Mar 2017

Keywords

  • cold-formed stainless steel
  • finite element analysis
  • lipped channel
  • stainless steel material grades
  • strength reduction factor
  • web crippling
  • web perforation

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