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Formability analyses of AA6016-T4 aluminum alloy sheets subjected to roping
TVEIT Sigbjørn, REYES Aase
download PDFAbstract. Due to its good formability characteristics, AA6xxx aluminum alloys have become popular as a light-weight alternative to steel for car bodywork components produced by stamping. In the design of forming operations, numerical simulations are often used, and accurate material models to describe plasticity and forming limits are important to successfully design optimized products and production processes to avoid the reliance on trial and error. For aluminum alloys used in sheet metal forming, the anisotropic plasticity characteristics caused by the directional rolling process has therefore been subject to extensive research over the last decades. A previous experimental program on AA6016-T4 sheets showed that the formability of the material is strongly affected by roping caused by rolling. In this paper, models of anisotropic plasticity, isotropic hardening, instability, and fracture, along with an approach to describe the effects of roping for proportional strain paths are used to predict forming and fracture limits in LS-DYNA.
Keywords
Aluminum Alloys, FEA Based FLD, Roping
Published online 4/24/2024, 10 pages
Copyright © 2024 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: TVEIT Sigbjørn, REYES Aase, Formability analyses of AA6016-T4 aluminum alloy sheets subjected to roping, Materials Research Proceedings, Vol. 41, pp 989-998, 2024
DOI: https://doi.org/10.21741/9781644903131-109
The article was published as article 109 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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