한국소성가공학회:학술대회논문집 (Proceedings of the Korean Society for Technology of Plasticity Conference)
- 한국소성가공학회 2005년도 추계학술대회 논문집
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- Pages.291-294
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- 2005
알루미늄 합금 판재 성형성 예측을 위한 유한요소해석 프로그램 개발
Development of finite element analysis program for aluminum alloy sheets
- Kim S. T. ;
- Moon M. S. ;
- Chung W. J. ;
- Yoon J. W. (Alcoa Technical Center) ;
- Kim Y. G.
- 발행 : 2005.10.01
초록
Recently, the usage of aluminum alloy is rapidly increasing in automobile industry to achieve weight reduction for fuel efficiency. However, design of forming process of aluminum is more difficult than steel because of poor formability and severe springback. Since applications of finite element analysis for the design of sheet metal forming process are actively performed, it is required to conduct proper consideration of aluminum material behavior. In this study, a plane stress yield function Yld2000(Yoon et al., 2000), proven to describe well the anisotropic behavior of aluminum alloy, is implemented for FE analysis. One element test is considered to verify the validity of implementation of Yld2000 model. In addition, cylindrical cup drawing test is performed to verify earing shape of a drawn cup.