Plasticity experiments on heavy gauge S700 steel

–

Plasticity experiments on heavy gauge S700 steel

COPPIETERS Sam, LAMBRUGHI Alessandro, VANCRAEYNEST Niels, ZHANG Yi, COOREMAN Steven, STARMAN Bojan

Abstract. High Strength Steel grades are indispensable for the development of heavy-duty constructions and components with high specific strength. In these applications, a profound understanding of the plastic material behavior up to fracture is required to assess the structural integrity through numerical simulations. In this paper, we investigate the plastic behavior of S700 with a nominal thickness of 12 mm. The steel production process of a hot rolled, heavy gauge material inherently results in a through-thickness variation of the mechanical properties: i) solidification of the continuously cast slab starts from the outer surface, causing a gradient of the chemical composition across the thickness, ii) subsequent thermomechanical controlled rolling results in a variation of microstructure and texture over the thickness. To enhance the predictive accuracy of numerical simulations, we are examining the manifestation of this inhomogeneity across a range of plasticity experiments.

Keywords
Heavy Gauge High Strength Steel, Plasticity, DIC, Delamination, IRT

Published online 4/24/2024, 9 pages
Copyright © 2024 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA

Citation: COPPIETERS Sam, LAMBRUGHI Alessandro, VANCRAEYNEST Niels, ZHANG Yi, COOREMAN Steven, STARMAN Bojan, Plasticity experiments on heavy gauge S700 steel, Materials Research Proceedings, Vol. 41, pp 1135-1143, 2024

DOI: https://doi.org/10.21741/9781644903131-125

The article was published as article 125 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.

References
[1] Raabe D, Textures of strip cast and hot rolled ferritic and austenitic stainless steel.Mater. Sci. Tech. Ser. 11 (1995) 461–468. https://doi.org/10.1179/026708395790165192
[2] Barsom J, Korvink S, Through-thickness properties of structural steels, J. Struct. Eng. (1998) 727–735. https://doi.org/10.1061/(ASCE)0733-9445(1998)124:7(727)
[3] Sohn SS, Han SY, Bae J-H, Kim HS, Lee S, Effects of microstructure and pipe forming strain on yield strength before and after spiral pipe forming of api x70 and x80 linepipe steel sheets. Mat. Sci. Eng. A 573 (2013) 18–26. https://doi.org/10.1016/j.msea.2013.02.050
[4] Zhang H, Coppieters S, Jiménez-Peña C, Debruyne D, Inverse identification of the post-necking work hardening behaviour of thick HSS through full-field strain measurements during diffuse necking. Mechanics of Materials, 2019, 129 Pages 361-374. https://doi.org/10.1016/j.mechmat.2018.12.014
[5] Coppieters S, Zhang Y, Vancraeynest N, Lambrughi A, Cooreman S, Inverse Identification of a 3D Anisotropic Yield Function Through an Information-Rich Tensile Test and Multi-sDIC. Proceedings of the 14th International Conference on the Technology of Plasticity – Current Trends in the Technology of Plasticity. ICTP 2023. https://doi.org/10.1007/978-3-031-42093-1_66
[6] Cholewa N, Summers PT, Feih S, Mouritz AP, Lattimer BY, Case SW, A Technique for Coupled Thermomechanical Response Measurement Using Infrared Thermography and Digital Image Correlation (TDIC), Experimental Mechanics, Volume 56, 2016, Pages 145-164. https://doi.org/10.1007/s11340-015-0086-1
[7] Louche H, Analyse par thermographie infrarouge des effets dissipatifs de la localisation dans des aciers, thèse de doctorat, Université Montpellier II – Sciences et Techniques du Languedoc, 1999.
[8] Vancraeynest N, Cooreman S, Coppieters S, Identification of the large strain flow curve of high strength steel via the torsion test and FEMU. In: Material Forming – ESAFORM 2023: vol. 28, 1167-1174. https://doi.org/10.21741/9781644902479-127