Transactions of Materials Processing (소성∙가공)

The Korean Society for Technology of Plasticity and materials processing (한국소성∙가공학회)
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Study on the Yield Locus of Aluminum Alloy Sheet Using Biaxial Cruciform Specimens

2축 십자형 시편을 이용한 알루미늄 합금 판재의 항복곡면에 대한 연구

  • 신효동 (대구기계부품연구원 차세대금형기술혁신센터) ;
  • 박진기 (경북대학교 기계공학부) ;
  • 박춘달 (대구기계부품연구원 차세대금형기술혁신센터) ;
  • 김영석 (경북대학교 기계공학부)
  • Published : 2009.08.01
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Abstract

The applications of the aluminum alloy sheets to the auto-body panels are dramatically increasing for weight reduction of the automobiles. However, low formability of the aluminum alloy sheet compared to the steel sheet can be obstacles in tool manufacturing processes. Therefore, many of yield criteria for the anisotropic materials such as the aluminum alloy sheet have been observed. In this study, the biaxial tensile test and FLD test for the aluminum alloy sheet are performed. The results are compared with Hill's 1948 and Hill's 1990 models by means of theoretical predictions. Finite element analysis was also performed using the proposed method for the real panel.

Keywords

References

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  1. State of Art for Biaxial Tensile Test Systems vol.20, pp.3, 2011, https://doi.org/10.5228/KSTP.2011.20.3.222
  2. Prediction of Formability of Aluminum Alloy 5454 Sheet vol.36, pp.2, 2012, https://doi.org/10.3795/KSME-A.2012.36.2.179