On the mechanical behavior of steels subjected to reverse loading
Gabriela Vincze, Marilena C. Butuc, Rafael O. Santos
Abstract. The automotive industry depends extensively on advanced high-strength steels (AHSS), and their ongoing development is crucial to meeting the evolving demands of vehicle manufacturing. Over time, three generations of AHSS have been developed, each offering distinct advantages. The successful forming of these materials is strongly influenced by their behavior under complex loading conditions, particularly reverse loading, which presents a significant challenge. This study investigates the response of three representative AHSS grades, dual-phase (DP800), twinning-induced plasticity (TWIP), and third generation (3rd gen) to reverse loading. Reverse loading was applied through simple shear testing. All three materials exhibited a pronounced Bauschinger effect, with the magnitude of this effect correlating with their position on the “banana” curve, highlighting the relationship between their microstructural characteristics and mechanical behavior. The trend exhibited by the evolution of Bauschinger parameter with the prestrain level shows a stabilization around 0.2 value. The permanent softening increases with increases of prestrain for each steel grade, being more pronounced for 3rd gen steel.
Keywords
Advanced High Strength Steel, Simple Shear, Reverse Loading
Published online 5/7/2025, 7 pages
Copyright © 2025 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: Gabriela Vincze, Marilena C. Butuc, Rafael O. Santos, On the mechanical behavior of steels subjected to reverse loading, Materials Research Proceedings, Vol. 54, pp 1069-1075, 2025
DOI: https://doi.org/10.21741/9781644903599-116
The article was published as article 116 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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