Article (Scientific journals)
Strength enhancements in cold-formed structural sections — Part II: 2 Predictive models
Rossi, Barbara; Afshan, Sheida; Gardner, Leroy
2013In Journal of Constructional Steel Research, 83, p. 189–196
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Keywords :
Cold-forming; Predictive models; Stainless steel; Strain hardening; Strength enhancement
Abstract :
[en] Cold-formed structural sections are manufactured at ambient temperature and hence undergo plastic deformations, which result in an increase in yield stress and a reduction in ductility. This paper begins with a comparative study of existing models to predict this strength increase. Modifications to the existing models are then made, and an improved model is presented and statistically verified. Tensile coupon data from existing testing programs have been gathered to supplement those generated in the companion paper and used to assess the predictive models. A series of structural section types, both cold-rolled and press-braked, and a range of structural materials, including various grades of stainless steel and carbon steel, have been considered. The proposed model is shown to offer improved mean predictions of measured strength enhancements over existing approaches, is simple to use in structural calculations and is applicable to any metallic structural sections. It is envisaged that the proposed model will be incorporated in future revisions of Eurocode 3.
Disciplines :
Civil engineering
Author, co-author :
Rossi, Barbara ;  Université de Liège - ULiège > Département Argenco : Secteur MS2F > Adéquat. struct. aux exig. de fonct.& perfor. techn.-écon.
Afshan, Sheida
Gardner, Leroy
Language :
English
Title :
Strength enhancements in cold-formed structural sections — Part II: 2 Predictive models
Publication date :
April 2013
Journal title :
Journal of Constructional Steel Research
ISSN :
0143-974X
eISSN :
1873-5983
Publisher :
Elsevier Science, Oxford, United Kingdom
Volume :
83
Pages :
189–196
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 11 January 2013

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