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TECHNICAL PAPERS

Forming Limit Analysis of Sheet Metals Based on a Generalized Deformation Theory

[+] Author and Article Information
C. L. Chow, M. Jie

Department of Mechanical Engineering, The University of Michigan—Dearborn, Dearborn, MI 48128

S. J. Hu

Department of Mechanical Engineering, The University of Michigan, Ann Arbor, MI 48109

J. Eng. Mater. Technol 125(3), 260-265 (Jul 10, 2003) (6 pages) doi:10.1115/1.1586938 History: Received May 15, 2002; Revised December 12, 2002; Online July 10, 2003
Copyright © 2003 by ASME
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References

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Keeler, S. P., 1989, “On the Origins of the FLD,” Forming Limit Diagrams: Concepts, Methods and Applications, R. H. Wagoner, K. S. Chan, and S. P. Keeler, eds., Warrendale, PA, pp. 3–8.
Goodwin, G. M., 1968, “Application of Strain Analysis to Sheet Metal Forming Problems in the Press Shop,” SAE Technical Paper No. 680093.
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Tadros,  A. K., and Mellor,  P. B., 1975, “Some Comments on the Limit Strains in Sheet Metal Stretching,” Int. J. Mech. Sci., 17, pp. 203–208.
Ghosh, A. K., 1978, “Plastic Flow Properties in Relation to Localized Necking in Sheets,” Mechanics of Sheet Metal Forming, D. P. Koistinen, and N. M. Wang, eds., Plenum Press, New York.
Rudnicki,  J. W., and Rice,  J. R., 1975, “Conditions for the Localization ofDeformation in Pressure-Sensitive Dilatant Materials,” J. Mech. Phys. Solids, 23, pp. 371–394.
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Zhu,  X., Weinmann,  K., and Chandra,  A., 2001, “A Unified Bifurcation Analysis of Sheet Metal Forming Limits,” ASME J. Eng. Mater. Technol., 123, pp. 329–333.
Chan,  K. S., Koss,  D. A., and Ghosh,  A. K., 1984, “Localized Necking of Sheet at Negative Minor Strains,” Metall. Trans. A, 15, pp. 323–329.
Chan,  K. S., 1985, “Effects of Plastic Anisotropy and Yield Surface Shape on Sheet Metal Stretchability,” Metall. Trans. A, 16, pp. 629–639.
Hecker,  S. S., 1975, “Formability of Aluminum Alloy Sheets,” ASME J. Eng. Mater. Technol., 97, pp. 66–73.
Hosford, W. F., 1979, “On Yield Loci of Anisotropic Cubic Metals,” 7th North Amer. Metalworking Res. Conf. Proc., SME, Dearborn.
Graf,  A., and Hosford,  W. F., 1993, “Effect of Changing Strain Paths on Forming Limit Diagrams of Al 2008-T4,” Metall. Trans. A, 24, pp. 2503–2512.
Chow,  C. L., Yu,  L. G., and Demeri,  M. Y., 1997, “A Unified Damage Approach for Predicting Forming Limit Diagrams,” ASME J. Eng. Mater. Technol., 119, pp. 346–353.

Figures

Grahic Jump Location
Localized band in sheet metal
Grahic Jump Location
Comparison of theoretical results with test data for Al 2028 17
Grahic Jump Location
Comparison of theoretical results with test data for Al 6111-T4 18

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