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Yield and strain rate potentials for aluminum alloy sheet forming design |
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| Authors: | Kwansoo Chung Frédéric Barlat Jeong-Whan Yoon Owen Richmond John C. Brem Daniel J. Lege |
| Affiliation: | (1) Department of Fiber and Polymer Science, College of Engineering, Seoul National University, 56-1 Shinrim-dong, 151-742 Kwanak-ku, Seoul, Korea;(2) Alcoa Technical Center, Alcoa Center, 100 Technical Drive, 15069-0001, PA, USA;(3) LG Production Engineering Research Center, 19-1 Cheongho-ri, Jinwuy-myun, 451-713 Pyungtaek-shi, Kyunggi, Korea |
| Abstract: | In this paper, potentials that analytically describe the plastic behavior of orthotropic metals are reviewed. These potentials, yield functions or strain rate potentials were expressed in six-dimensional stress or strain rate spaces, respectively. Some of the recently developed potentials that are consistent with polycrystal plasticity models are briefly discussed and applied to computational analysis and design of sheet metal forming processes. |
| Keywords: | plasticity anisotropy yield surface strain rate potential sheet metal forming blank design |
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