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Uzzaman, Asraf
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Publications (4/4 displayed)
- 2017Numerical investigation of web crippling strength in cold-formed stainless steel lipped channels with web openings subjected to interior-two-flange loading conditioncitations
- 2017Web crippling strength of cold-formed stainless steel lipped channels with web perforations under end-two-flange loadingcitations
- 2016Numerical study of web crippling strength in cold-formed austenitic stainless steel lipped channels with web openings subjected to interior-two-flange loading
- 2012Effect of reduced joint strength and semi-rigid joints on cold-formed steel portal frames
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article
Web crippling strength of cold-formed stainless steel lipped channels with web perforations under end-two-flange loading
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 bothcentred 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.