지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2022.12
- 수록면
- 351 - 364 (14page)
이용수
초록· 키워드
오류제보하기
The yield criterion, or called yield function, plays an important role in the study of plastic working of a sheet because it governs the plastic deformation properties of the sheet during plastic forming process. In this paper, we propose a modified version of previous anisotropic yield function (Trans. Mater. Process., 31(4) 2022, pp. 214-228) based on J2 and J3 stress invariants. The proposed anisotropic yield model has the 6th-order of stress components. The modified version of the anisotropic yield function in this study is as follows.
[수식 본문 참조]
The proposed anisotropic yield function well explains the anisotropic plastic behavior of various sheets such as aluminum , high strength steel , magnesium alloy sheets etc. by introducing the parameters α and β, and also exhibits both symmetrical and asymmetrical yield surfaces. The parameters included in the proposed model are determined through an optimization algorithm from uniaxial and biaxial experimental data under proportional loading path. In this study, the validity of the proposed anisotropic yield function was verified by comparing the yield surface shape, normalized uniaxial yield stress value, and Lankford"s anisotropic coefficient R-value derived with the experimental results. Application for the proposed anisotropic yield function to AA6016-T4 aluminum and DP980 sheets shows symmetrical yielding behavior and to AZ31B magnesium shows asymmetric yielding behavior, it was shown that the yield locus and yielding behavior of various types of sheet materials can be predicted reasonably by using the proposed anisotropic yield function.
[수식 본문 참조]
The proposed anisotropic yield function well explains the anisotropic plastic behavior of various sheets such as aluminum , high strength steel , magnesium alloy sheets etc. by introducing the parameters α and β, and also exhibits both symmetrical and asymmetrical yield surfaces. The parameters included in the proposed model are determined through an optimization algorithm from uniaxial and biaxial experimental data under proportional loading path. In this study, the validity of the proposed anisotropic yield function was verified by comparing the yield surface shape, normalized uniaxial yield stress value, and Lankford"s anisotropic coefficient R-value derived with the experimental results. Application for the proposed anisotropic yield function to AA6016-T4 aluminum and DP980 sheets shows symmetrical yielding behavior and to AZ31B magnesium shows asymmetric yielding behavior, it was shown that the yield locus and yielding behavior of various types of sheet materials can be predicted reasonably by using the proposed anisotropic yield function.
목차
Abstract
1. 서론
2. 제안된 모델
3. 제안된 항복함수 모델의 적용
4. 결론
REFERENCES
참고문헌 (54)
참고문헌 신청
R.H. Wagoner, J.-L. Chenot, Metal forming analysis, Cambridge University Press, 2001
D. Banabic, F. Barlat, O. Cazacu, T. Kuwabara, 2020, Advances in anisotropy of plastic behavior and formability, Int. J. Mater. Form., Vol.13, pp.749-787.
D.Banabic, Sheet Metal Forming Processes – Constitutive Modelling and Numerical Simulation, Springer, 2010.
H. Swift, 1952, Plastic instability under plane stress, J. Mech. Phys. Solids, Vol.1, No.1, pp.1–18.
E. Voce, 1948, The relationship between stress and strain for homogeneous deformation, J. Inst. Met., Vol.74, pp.537–62,
D. Banabic, F. Barlat, O. Cazacu, T. Kuwabara, 2020, Advances in anisotropy of plastic behavior and formability, Int. J. Mater. Form., Vol.13, pp.749-787.
D.Banabic, Sheet Metal Forming Processes – Constitutive Modelling and Numerical Simulation, Springer, 2010.
H. Swift, 1952, Plastic instability under plane stress, J. Mech. Phys. Solids, Vol.1, No.1, pp.1–18.
E. Voce, 1948, The relationship between stress and strain for homogeneous deformation, J. Inst. Met., Vol.74, pp.537–62,
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