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
- 701 - 708 (8page)
이용수
초록· 키워드
오류제보하기
The fit of complex yield locus models with different experiments is often not unique and the quality of modeling can not be derived directly. To overcome this problem a set of simple material tests are proposed, one is discussed in detail. This test allows the individual estimation how realistic yield locus results are and is also adequate to calibrate the free yield locus exponent. The in literature given exponent of M=6.0 for steels can not be confirmed here. Better is a range of M=4.5 to M=5.0 in combination with a strain rate depending material hardening for some steels, but not in general. With the help of an optimization strategy in combination with an inverse model calibration the yield locus exponent, friction and material hardening are automatically determined for a mild steel grade. Finally the results of the validation experiments are confirmed in a study for a side wall frame produced with the same material grade.
목차
Abstract
INTRODUCTION
A MATERIAL MODEL VALIDATION PROCESS
CHANCES FOR AN OPTIMIZATION USING INVERSE METHODS
INDUSTRIAL APPLICATON EXAMPLE
DISCUSSION AND CONCLUSION
REFERENCES
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