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dc.contributor.authorQin, Jisheng
dc.contributor.authorHolmedal, Bjørn
dc.contributor.authorHopperstad, Odd Sture
dc.description.abstractThe stress-strain behavior of the aluminum alloy AA3103 subjected to single and double strain-path changes (SPCs) is studied experimentally. The experimental program includes compression-tension, tension-tension, rolling-tension and tension-rolling-tension tests. The considered AA3103 plate exhibits plastic anisotropy, a strong Bauschinger effect with hardening stagnation after strain reversal, cross-hardening and permanent softening after orthogonal SPCs in the tension-tension tests. However, when instead the orthogonal SPCs are obtained by rolling-tension tests, cross-softening is observed. The same behavior is seen in more complex tension-rolling-tension tests. Three state-of-the-art advanced plasticity models are used in an attempt to model the experimentally observed behavior. These models all account for plastic anisotropy and transient effects after SPCs, using a microstructure deviator tensor to describe a fading memory of the deformation history. While the models successfully describe the behavior after strain reversals, they fail to represent the behavior after orthogonal SPCs. It is concluded that the Schmitt angle, on which the current models depend, is not sufficient for a fundamental description of SPCs for the considered AA3103 alloy.nb_NO
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internasjonal*
dc.titleExperimental characterization and modeling of aluminum alloy AA3103 for complex single and double strain-path changesnb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.source.journalInternational journal of plasticitynb_NO
dc.description.localcode© 2018. This is the authors’ accepted and refereed manuscript to the article. Locked until 29.8.2020 due to copyright restrictions. This manuscript version is made available under the CC-BY-NC-ND 4.0 license
cristin.unitnameInstitutt for materialteknologi
cristin.unitnameInstitutt for konstruksjonsteknikk

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Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal