Skip to Main content Skip to Navigation
Journal articles

Experimental and Numerical Analysis on the Formability of a Heat-Treated AA1100 Aluminum Alloy Sheet

Abstract : The objective of this work is to experimentally and numerically determine the influence of plastic anisotropy on the forming limit curve (FLC) for a heat-treated (300 °C-1 h) AA1100 aluminum alloy sheet. The FLCs were obtained by the Nakajima test, where the anisotropy effect on the FLC was evaluated using hourglass-type samples taken at 0°, 45°, and 90° with respect to the sheet rolling direction. The effect of crystal orientations on the FLC is investigated using three micro-macro averaging schemes coupled to a Marciniak and Kuczynski (MK) analysis: the tangent viscoplastic self-consistent (VPSC), the tuned strength αVPSC, and the full-constraint Taylor model. The predicted limit strains in the left-hand side of the FLC agree well with experimental measurements along the three testing directions, while differences are found under biaxial stretching modes. Particularly, MK-VPSC predicts an unexpected limit strain profile in the right-hand side of the FLC for samples tested along the transverse direction. Only MK-αVPSC, with a tuning factor of 0.2, predicts satisfactorily the set of FLC measurements. Finally, the correlation of the predicted limit strains with the predicted yield surface by each model was also discussed.
Complete list of metadata
Contributor : Jean-Baptiste VU VAN Connect in order to contact the contributor
Submitted on : Tuesday, September 3, 2019 - 2:35:29 PM
Last modification on : Sunday, June 26, 2022 - 9:32:49 AM





Alicia Duran, Javier Signorelli, Diego Celentano, Marcela Cruchaga, Manuel François. Experimental and Numerical Analysis on the Formability of a Heat-Treated AA1100 Aluminum Alloy Sheet. Journal of Materials Engineering and Performance, Springer Verlag/ASM International, 2015, 24 (10), pp.4156-4170. ⟨10.1007/s11665-015-1684-x⟩. ⟨hal-02277229⟩



Record views