Influence of Bauschinger Effect and Anisotropy on Springback of Aluminum Alloy Sheets
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- Uemori Takeshi
- Department of Advanced Mechanics and Manufacturing Technology, Graduate Schools of Natural Science and Technology, Okayama University
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- Sumikawa Satoshi
- Department of Mechanical Science and Engineering, Hiroshima University
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- Naka Tetsuo
- Automotive Engineering Department, Tokushima College of Technology
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- Ma Ninshu
- Engineering Technology Division, JSOL Corporation
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- Yoshida Fusahito
- Department of Mechanical Science and Engineering, Hiroshima University
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Abstract
<p>For accurate springback calculations, the development of accurate constitutive equation “Yoshida-Uemori model” must always be taken into account. However, several springback calculations of other sheet metals by Yoshida-Uemori model have shown wrong agreements with the corresponding experimental data. The reason is why most of them have been calculated from the view point of the accuracy of Bauschinger effect without the strong anisotropy of sheet metal. In the present paper, we have investigated how the initial anisotropy affects the amount of springback for aluminum sheet metals with Bauschinger effect. Specifically, hat bending experiments in R.D. and T.D. were compared with the corresponding calculations. From the above mentioned comparisons, we found that the optimum combination of an anisotropic yield functions and Yoshida-Uemori model is very important for accurate springback analysis.</p><p> </p><p>This Paper was Originally Published in Japanese in J. JILM 65 (2015) 582–587.</p>
Journal
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- MATERIALS TRANSACTIONS
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MATERIALS TRANSACTIONS 58 (6), 921-926, 2017
The Japan Institute of Metals and Materials
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Details 詳細情報について
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- CRID
- 1390001204254148608
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- NII Article ID
- 130005679014
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- NII Book ID
- AA1151294X
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- ISSN
- 13475320
- 13459678
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- NDL BIB ID
- 028195696
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed