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Factors affecting the accuracy of flow stress determined by the bulge test
Ohio State University.
Ohio State University.
Ohio State University.
RISE, Swerea, Swerea IVF.
Show others and affiliations
2011 (English)In: Special Edition: 10th International Conference on Technology of Plasticity, ICTP 2011, 2011, p. 726-731Conference paper, Published paper (Refereed)
Abstract [en]

The determination of the flow stress curve at room temperature, using the bulge test under biaxial deformation conditions, has been extensively studied. However, two Issues still deserve close examination: (1) validity of assuming a spherical bulge shape and (2) the effects of yield criterion and/or normal anisotropy. In this paper, we present experimental measurements to validate spherical assumption, as well as a methodology to calculate flow stress curves, all the way up to the failure point, that are free from the effects of anisotropy. Experimental studies were conducted on draw quality steel (DQS) and several grades of Dual Phase (DP) Advanced High Strength Steels (AHSS). © 2011 Wiley-VCH Verlag GmbH & Co. KGaA. Weinheim.

Place, publisher, year, edition, pages
2011. p. 726-731
Keywords [en]
Bulge test, Material characterization, Sheet forming
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:ri:diva-13425Scopus ID: 2-s2.0-84898065381ISBN: 9783514007840 (print)OAI: oai:DiVA.org:ri-13425DiVA, id: diva2:973632
Conference
10th International Conference on Technology of Plasticity, ICTP 2011
Available from: 2016-09-22 Created: 2016-09-22Bibliographically approved

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