Analysis of the Anisotropic Behavior and of the Formability Aptitude for an AA2024 Alloy Using the Channel Die Compression Test and the Simple Tension Test

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Abstract:

The mechanical behavior of metallic materials during sheet forming processes must be related to their anisotropic properties and their formability aptitude. So, in this paper, channel die compression experiments are proposed to analyze the anisotropy of an AA2024 thick sheet. A modified quadratic Hill criterion based on the variation of the coefficients with the cumulated plastic strain is proposed. To compare and to validate the identified Hill coefficients values, classical tensile tests are also analyzed. The results are validated via finite element simulations of the tensile tests and channel die compression experiments using the commercial code LS-DYNA.

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Key Engineering Materials (Volumes 504-506)

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23-28

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February 2012

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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[1] C. Liu, Y. Huang and M. Stout, On the asymmetric yield surface of plastically orthotropic materials, Acta Mater. 45 (1997) 2397-2405.

Google Scholar

[2] M. Teaca, L. Charpentier, M. Maritiny and G. Ferron, Identification of sheet metal plastic anisotropy using heterogeneous biaxial tensile tests, Int. J. of Mech. Sci. 52 (2010) 572-580.

DOI: 10.1016/j.ijmecsci.2009.12.003

Google Scholar

[3] S. Bouvier, H. Haddadi, P. Levée and C. Teodosiu, Simple shear tests: Experimental techniques and characterization of the plastic anisotropy of rolled sheets at large strains, Journal of Materials Processing Technology. 172 (2006) 96-103.

DOI: 10.1016/j.jmatprotec.2005.09.003

Google Scholar

[4] L. Moreira, G. Ferron and G. Ferran, Experimental and numerical analysis of the cup drawing test for orthotropic metal sheets, J. of Mat. Proc. Technology. 108 (2000) 78-86.

DOI: 10.1016/s0924-0136(00)00660-9

Google Scholar

[5] V. Uthaisangsuk, U. Prahl, S. Münstermann and W. Bleck, Experimental and numerical failure criterion for formability prediction in sheet metal forming, Computational Materials Science. 43 (2008) 43-50.

DOI: 10.1016/j.commatsci.2007.07.036

Google Scholar

[6] A. Gavrus and H. Francillette, Identification of anisotropic Hill criteria from the channel die compression test. Application to a normal anisotropy of zirconium 702α, Journal de Physique IV (Proceedings). 105 (2003) 11-18.

DOI: 10.1051/jp4:20030166

Google Scholar

[7] D. Banabic, Sheet Metal Forming Processes: Constitutive Modeling and Numerical Simulation, Springer, 2010.

Google Scholar