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
- 학술대회자료
- 저자정보
- 저널정보
- 한국소성·가공학회 기타자료 The 8th International Conference and Workshop on numerical simulation of 3D seet metal forming processes (NUMISHEET 2011)
- 발행연도
- 2011.8
- 수록면
- 758 - 764 (7page)
이용수
초록· 키워드
오류제보하기
In the paper, a 3D fracture locus of 1045 steel under proportional loading conditions was calibrated using round, plane strain, and tubular specimens. The fracture locus includes both the stress triaxiality and Lode angle dependence. As an extension to the conventional linear damage evolution assumption, a new form of ductile fracture model considering the loading history effect was proposed, in which two weighting functions were introduced to the damage indicator calculation. One considers the non-linear damage evolution under proportional loading, the other accounts for the effect of change in loading directions. A round of comprehensive fracture tests on 1045 steel was conducted to validate the proposed fracture model. These tests include monotonic loading tests for 3D fracture locus calibration and other tests with complex loading histories, for example two-stage-tension test, compression-tension test and torsion-tension test.
목차
Abstract
1. Introduction
2. Constitutive modeling
3. Experimental and simulation results
4. Conclusion
References
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