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Springback investigation in roll forming of a V-section

journal contribution
posted on 2014-01-01, 00:00 authored by Armin Abvabi, J Mendiguren, Bernard RolfeBernard Rolfe, Matthias WeissMatthias Weiss
To have fuel efficient vehicles with a lightweight structure, the use of High Strength Steels (HSS) and Advanced High Strength Steels (AHSS) in the body of automobiles is increasing. Roll forming is used widely to form AHSS materials. Roll forming is a continuous process in which a flat strip is shaped to the desired profile by passing through numerous sets of rolls. Formability and springback are two major concerns in the roll forming of AHSS materials. Previous studies have shown that the elastic modulus (Young's modulus) of AHSS materials can change when the material undergoes plastic deformation and the main goal of this study is to numerically investigate the effect of a change in elastic modulus during forming on springback in roll forming. Experimental loading-unloading tests have been performed to obtain the material properties of TRIP 700 steel and incorporate those in the material model used in the numerical simulation of the roll forming process. The finite element simulations were carried out using MSC-Marc and two different element types, a shell element and a solid-shell element, were investigated. The results show that the elastic modulus diminution due to plastic strain increases the springback angle by about 60% in the simple V-section roll forming analyzed in this study. © (2014) Trans Tech Publications, Switzerland.

History

Journal

Applied mechanics and materials

Volume

553

Pagination

643 - 648

Publisher

Trans Tech Publications

Location

Pfaffikon, Switzerland

ISSN

1660-9336

eISSN

1662-7482

ISBN-13

9783038350682

Language

eng

Publication classification

C Journal article; C1 Refereed article in a scholarly journal

Copyright notice

2014, Trans Tech Publications

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