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An improved model for the longitudinal peak strain in the flange of a roll formed U-channel developed by FE-analyses
Dalarna University, School of Technology and Business Studies, Materials Technology.
2007 (English)In: Steel Research International, ISSN 1611-3683, E-ISSN 1869-344X, Vol. 78, no 1, p. 82-87Article in journal (Refereed) Published
Abstract [en]

Today one can find cold roll forming (CRF) products in many applications, for example vehicles, furniture and in the building industry. Though CRF is a well known sheet metal process, it is still not entirely understood due to the geometrically complex forming. There are several computer aided engineering (CAE) programs on the market that can assist the tool maker when designing a new CRF machine. However, they are often based on simple formulas when predicting the stress and the strain in the strip. The main objective of this study is to improve formulas for the longitudinal peak membrane strain and the deformation length when a U-channel is formed. These are important since they can be used to determine the number of forming steps and the distance between them. A twolevel factorial design is done using the finite element analysis to investigate which parameters affect the peak strain and the deformation length. The parameters are then used to build models for the peak strain and the deformation length.

Place, publisher, year, edition, pages
2007. Vol. 78, no 1, p. 82-87
Keywords [en]
cold roll forming, factorial design, finite element analysis
National Category
Materials Engineering
Research subject
Stålformning och ytteknik, Simulering och experimentell undersökning av rullformningsprocessen
Identifiers
URN: urn:nbn:se:du-3220ISI: 000244328000012OAI: oai:dalea.du.se:3220DiVA, id: diva2:519927
Available from: 2008-03-07 Created: 2008-03-07 Last updated: 2017-12-07Bibliographically approved

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CiteExportLink to record
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Language
  • de-DE
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  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf