Failure of cold-formed beam: How does residual stress affect stability?

Bielski, Paweł Michał; Wysocki, Oskar; Czyżewicz, Jacek

doi:10.1201/9781315166605-122

Cited by 1 publication

(2 citation statements)

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“…Some conclusions regarding Eurocode 3 procedures are then drawn. It should be noted that the work featured in the paper is an extension and development of the study presented earlier at a conference [2].…”

Section: Introductionmentioning

confidence: 88%

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Simple Computational Methods in Predicting Limit Load of High-Strength Cold-Formed Sections due to Local Buckling: A Case Study

Bielski

Samson

Wysocki

et al. 2018

Polish Maritime Research

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Cold-formed thin-walled sections are prone to local buckling caused by residual stresses, geometrical imperfections and inconsistency of material properties. We present a real case of buckling failure and conduct a numerical and experimental study aimed to identify methods capable of predicting such failures. It is important because designers of structures are getting more FEA-oriented and tend to avoid lengthy procedures of cold-formed structures design. Currently adopted methods are complicated and require patience and caution from a designer which is reasonable in case of the most important structural members but not necessarily so in ordinary design. Since it is important, we offer an insight into several FEA and manual methods which were sufficient to predict the failure while remaining fairly simple. Using a non-uniform partial safety factor was still necessary. We hope that this paper will be of interest for people performing a lot of routine analyses and worrying about reliability of their computations.

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Section: Introductionmentioning

confidence: 88%

“…What happened later was a buckling failure of the newly designed member during fatigue stress tests. The following investigation has been described in detail in the previous paper [2]. Here we will focus only on the essential part of the study.…”

Section: Fig 2 Stresses Obtained During the Initial Linear Fem Calcmentioning

confidence: 99%