Characterization and Modeling of Advanced High Strength Steels

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Beschreibung

New generations of advanced high strength steels, expected with tension strength exceeding 1 GPa, sufficient cold-stamping ductility, and low-alloyed microstructure, are being highly sought for automotive lightweighting applications without compromising on neither performance nor cost standards. Nevertheless, the preliminary-developed new AHSSs exhibit unique and complex deformation, failure, and springback characteristics compared with the conventional steel grades, which thereby bring significant challenges to the current manufacturing infrastructure in automotive sector. This research work started from a full set of mechanical experimentation on some selected AHSSs to comprehensively understand their deformation, springback, and failure. Furthermore, based on the experimental results, a new phenomenological model was proposed to properly characterize not only anisotropy, complex hardening induced by the Bauschinger effect, but also tension-compression asymmetry and the TRIP effect. This work eventually wrapped up with a case study of component-level finite element forming and springback predictions compared with the corresponding actual panels as verification.

Autorentext
Jun Hu is now an engineer at AK Steel R&D. He received his PhD in Automotive Engineering in 2016 and MS in Mechanical Engineering at Clemson University in 2012 and BE in Mechanical Engineering and BA in English at Qingdao University of Sci & Tech in 2009. Research interests include material characterization of deformation, springback, and failure.

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Produktinformationen

Titel
Characterization and Modeling of Advanced High Strength Steels
Untertitel
Deformation, Springback, and Failure of AHSSs
Autor
EAN
9783330316270
Format
Kartonierter Einband
Genre
Allgemeines & Lexika
Anzahl Seiten
204
Gewicht
316g
Größe
H13mm x B219mm x T149mm
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