Proceedings of the Korean Society for Technology of Plasticity Conference (한국소성가공학회:학술대회논문집)
- 2007.10a
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- Pages.67-69
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- 2007
Modeling Constitutive Behavior of Mg Alloy Sheets for the Prediction of Sheet Springback
마그네슘 합금 판재의 구성식 개발: 스프링백에의 응용
Abstract
Unusual mechanical constitutive behavior of magnesium alloy sheets has been implemented into the finite element program ABAQUS via user material subroutine. For the verification purpose, the springback of AZ31B magnesium alloy sheet was measured using the unconstrained cylindrical bending test of Numisheet'2002. In addition to the developed constitutive models, the other two models based on isotropic constitutive equations with tensile and compressive properties were also considered. Preliminary comparisons have been made between simulated results by the finite element analysis and corresponding experiments and the newly proposed model showed enhanced prediction capability in springback prediction.
Keywords
- Magnesium Alloy Sheet;
- Asymmetry;
- Constitutive Equations;
- Springback;
- Unconstrained Cylindrical Bending Test
- 마그네슘 합금 판재;
- 비대칭성;
- 구성방정식;
- 스프링백;
- 비구속 원통 굽힘 실험;