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Investigation of Hole Expansion Characteristics of DP 600 With Testing and Modeling

[+] Author Affiliations
Siddharth Mohan Ram, Hong-Tae Kang

The University of Michigan-Dearborn, Dearborn, MI

Paper No. IMECE2010-39455, pp. 47-51; 5 pages
  • ASME 2010 International Mechanical Engineering Congress and Exposition
  • Volume 3: Design and Manufacturing, Parts A and B
  • Vancouver, British Columbia, Canada, November 12–18, 2010
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-4427-4
  • Copyright © 2010 by ASME


The automotive industry utilizes stretch flanges in sheet metal components which become load carrying members providing strength to the body or they are subsequently joined with other components in vehicle structures. Failures often occur at the edge of these flanges. The Hole Expansion Test is designed specifically for characterizing the deformation of sheet steels in the flange. The test is performed for DP 600 sheet steel with the guideline of ISO standard 16630: 2009. Strains developed during the tests were measured using a non-contact strain measurement system and square grid method. This study also compared those results with finite element simulation results.

Copyright © 2010 by ASME



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