File(s) under permanent embargo
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 WeissTo 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 materialsVolume
553Pagination
643 - 648Publisher
Trans Tech PublicationsLocation
Pfaffikon, SwitzerlandISSN
1660-9336eISSN
1662-7482ISBN-13
9783038350682Language
engPublication classification
C Journal article; C1 Refereed article in a scholarly journalCopyright notice
2014, Trans Tech PublicationsUsage metrics
Categories
No categories selectedLicence
Exports
RefWorks
BibTeX
Ref. manager
Endnote
DataCite
NLM
DC