Web crippling strength of cold-formed duplex stainless steel lipped channel-sections with web openings subjected to interior-one-flange loading condition

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

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

13 Citations (Scopus)


Cold-formed stainless steel sections are becoming more widely used in the residential and commercial sectors due to their high corrosion resistance and high strength-to-weight ratio. However, their susceptibility to web crippling at points of concentrated loading is well-known to be an important design issue. In addition, web openings are also become popular, as they improve ease of installation of services. This paper presents the results of an investigation into the effect of web crippling on cold-formed duplex stainless steel lipped channel-sections, having such openings, under the interior-one-flange (IOF) loading condition. 742 non-linear elasto-plastic finite element analyses are undertaken, with web openings located either centred beneath the bearing plate or offset to bearing plate. The effect of the size of the web opening, length of bearing plate and location of the web opening is considered. Strength reduction factor equations are proposed, that can be used to take into account such openings in design.

Original languageEnglish
Title of host publicationProceedings of the Wei-Wen Yu International Specialty Conference on Cold-formed Steel Structures, Recent Research and Developments in Cold-formed Steel Design and Construction, Baltimore, Maryland, USA
Number of pages12
Publication statusPublished - 1 Jan 2016
Externally publishedYes
EventWei-Wen Yu International Specialty Conference on Cold-Formed Steel Structures 2016 - Baltimore, United States
Duration: 9 Nov 201610 Nov 2016


ConferenceWei-Wen Yu International Specialty Conference on Cold-Formed Steel Structures 2016
Country/TerritoryUnited States


  • Cold-formed stainless steel
  • Finite element analysis
  • Lipped channel-section
  • Strength reduction factor
  • Web crippling

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Metals and Alloys

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