Influence of low-strain deformation characteristics of high strength sheet steel on curl and springback in bend-under-tension tests

Hilditch, Tim, Speer, J. and Matlock, D. 2007, Influence of low-strain deformation characteristics of high strength sheet steel on curl and springback in bend-under-tension tests, Journal of materials processing technology, vol. 182, no. 1-3, pp. 84-94.


Title Influence of low-strain deformation characteristics of high strength sheet steel on curl and springback in bend-under-tension tests
Author(s) Hilditch, Tim
Speer, J.
Matlock, D.
Journal name Journal of materials processing technology
Volume number 182
Issue number 1-3
Start page 84
End page 94
Publisher Elsevier BV
Place of publication Amsterdam, The Netherlands
Publication date 2007-02-02
ISSN 0924-0136
Keyword(s) curl
springback
TRIP
dual-phase
steel
Summary The influence of low-strain deformation behavior on curl and springback in advanced high strength steels (AHSS) was assessed using a bend-under-tension test. The effect of yielding behavior on curl and springback was examined by heat-treating two dual-phase steels to induce yield point elongation, while keeping a relatively constant tensile strength and a constant sheet thickness. A dual-phase and TRIP steel with similar initial thickness and tensile strengths were also examined to investigate the effect of work-hardening on curl and springback. It is shown that while current understanding limits prediction of curl and springback in bending under tension using only the initial sheet thickness and tensile strength, both the yielding and work-hardening behavior can affect the results. Explanations for these effects are proposed in terms of the discontinuous yielding and flow stress in the materials.


Language eng
Field of Research 091207 Metals and Alloy Materials
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2006, Elsevier B.V.
Persistent URL http://hdl.handle.net/10536/DRO/DU:30007631

Document type: Journal Article
Collection: Centre for Material and Fibre Innovation
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