Identification of the large strain flow curve of high strength steel via the torsion test and FEMU

Identification of the large strain flow curve of high strength steel via the torsion test and FEMU

VANCRAEYNEST Niels, COOREMAN Steven, COPPIETERS Sam

Abstract. A torsion specimen is removed from the as-received thick high strength steel sheet (S700MC with a nominal thickness of 12 mm). The test material has a maximum uniform tensile strain of about 12 %. The torsion test is conducted up to fracture. The experimentally acquired torque-angle curve is then used to inversely identify the large strain flow curve up to an equivalent plastic strain of approximately 1. The identification strategy is based on the Finite Element Model Updating (FEMU) approach.

Keywords
Large Strain Flow Curve, Torsion Test, Inverse Identification

Published online 4/19/2023, 8 pages
Copyright © 2023 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA

Citation: VANCRAEYNEST Niels, COOREMAN Steven, COPPIETERS Sam, Identification of the large strain flow curve of high strength steel via the torsion test and FEMU, Materials Research Proceedings, Vol. 28, pp 1167-1174, 2023

DOI: https://doi.org/10.21741/9781644902479-127

The article was published as article 127 of the book Material Forming

Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.

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