Simple computational methods in predicting limit load of high-strength cold-formed sections due to local buckling: a case study

• Autorzy: Bielski P. , Samson L. , Wysocki O. , Czyżewicz J.

Identyfikatory

DOI

10.2478/pomr-2018-0134

• Języki publikacji: EN

Abstrakty

EN

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.

Słowa kluczowe

EN

high-strength steel structures; cold-formed thin-walled sections; local buckling; stability of structure; Eurocode 3 safety factor

• Wydawca: Gdańsk University of Technology, Faculty of Ocean Engineering & Ship Technology
• Czasopismo: Polish Maritime Research
• Rocznik: 2018
• Tom: nr 4
• Strony: 73--82
• Opis fizyczny: Bibliogr. 22 poz., rys.

Twórcy

autor

Bielski P.

• Gdansk University of Technology,Faculty of Ocean Engineering and Ship Technology, Poland

autor

Samson L.

• Gdansk University of Technology,Faculty of Ocean Engineering and Ship Technology, Poland

autor

Wysocki O.

• Gdansk University of Technology, Faculty of Mechanical Engineering, Poland

autor

Czyżewicz J.

• Gdansk University of Technology, Faculty of Mechanical Engineering, Poland

Bibliografia

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Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).