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Review Article

Advances in Plastic Anisotropy and Forming Limits in Sheet Metal Forming

[+] Author and Article Information
Dorel Banabic

CERTETA Research Center,
Technical University of Cluj Napoca,
Cluj Napoca 400114, Romania
e-mail: banabic@tcm.utcluj.ro

Manuscript received October 25, 2015; final manuscript received June 9, 2016; published online July 19, 2016. Assoc. Editor: Edmund Chu.

J. Manuf. Sci. Eng 138(9), 090801 (Jul 19, 2016) (9 pages) Paper No: MANU-15-1532; doi: 10.1115/1.4033879 History: Received October 25, 2015; Revised June 09, 2016

In the last decades, numerical simulation has gradually extended its applicability in the field of sheet metal forming. Constitutive modeling and formability are two domains closely related to the development of numerical simulation tools. This paper is focused, on the one hand, on the presentation of new phenomenological yield criteria developed in the last decade, which are able to describe the anisotropic response of sheet metals, and, on the other hand, on new models and experiments to predict/determine the forming limit curves.

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References

Figures

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Fig. 7

HMS computational plasticity framework

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Fig. 8

Comparison of experimental and predicted cup profiles using BBC 2008 model identified by mechanical testing and using the evolving anisotropy HMS-BBC 2008 (Reprinted from Gawad et al., 2015 [51] with permission from Elsevier)

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Fig. 1

Yield loci predicted by using different versions of the BBC2005 model for AA6016-T4 aluminum alloy

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Fig. 2

Comparison between FE simulation and experiment for thickness-strain distribution

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Fig. 3

Normalized yield surface predicted by BBC2008 model for AA2090-T3 aluminum alloy

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Fig. 4

Planar distribution of the uniaxial yield stress predicted by BBC2008 model for AA2090-T3 aluminum alloy

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Fig. 5

Planar distribution of the r-coefficient predicted by BBC2008 model for AA2090-T3 aluminum alloy

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Fig. 6

Earing prediction for aluminum AA2090-T3: (a) simulation and (b) ears profile

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Fig. 9

Numerical FLD predictions for Gologanu model: LA necking model versus M–K model (Reprinted from Gologanu et al., 1913 [57] with permission from AIP)

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Fig. 10

Comparison between the FLC obtained by different methods (Reprinted from Kami et al., 2015 [57] with permission from Elsevier)

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Fig. 11

Schematic view of the new formability test (Reprinted from Banabic et al., 2013 [59] with permission from Elsevier)

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Fig. 12

Forming limit diagram of the AA6016-T4 alloy (Reprinted from Banabic et al., 2013 [59] with permission from Elsevier)

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