Experimental study and design calculation for compressive strengths of cold formed thick‐wall sections

Hu, Songbo; Li, L X; Wang, X Y; Chang, Qing

doi:10.1179/143307511x12858957675679

Cited by 1 publication

(1 citation statement)

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“…Hu [1] investigated the capacity of thick-wall cold formed steel with square and rectangular hollow crosssections considering the strain hardening due to forming process. Experiments were carried out to determine the mechanical properties of the flat coupons, corner coupons, parent steel coupons and full section stub columns.…”

Section: Introductionmentioning

confidence: 99%

Cold Rolling Effects on Material Properties in Pallet Rack Uprights

Crisan¹,

Dogariu²

2017

TOCIEJ

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Pallet rack structures are usually made up of thin walled cold formed steel sections. The cold rolling process changes the material properties, increasing the yield strength and tensile strength across the section. According to EN1993-1-3, an equivalent yielding strength is allowed to be considered in design to account for the changes in material properties. It has to be mentioned that this approach does not take into account the residual stresses that arise following the forming process. The current paper presents the experimental evidence of residual stresses as result cold rolling process for two pallet rack upright sections. Based on experimental findings, a series of numerical models were created in order investigate the influence of residual stresses onto the load bearing capacity of pallet rack uprights. The experimental program was developed within the CEMSIG Research Centre (http://cemsig.ct.upt.ro) of "Politehnica" University of Timisoara. The increase of yield strength and tensile strength across the crosssection was also experimentally determined.

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Section: Introductionmentioning

confidence: 99%