Details
| Originalsprache | Englisch |
|---|---|
| Aufsatznummer | 012125 |
| Fachzeitschrift | Journal of Physics: Conference Series |
| Jahrgang | 896 |
| Ausgabenummer | 1 |
| Publikationsstatus | Veröffentlicht - 27 Sept. 2017 |
| Veranstaltung | 36th IDDRG Conference 2017: Materials Modelling and Testing for Sheet Metal Forming - Munich, Deutschland Dauer: 2 Juli 2017 → 6 Juli 2017 |
Abstract
The paper presents application of fracture behaviour characterisation results of a dual-phase sheet steel DP600 to an FEA of its deep-drawing for shear fracture prediction. The characterisation results were obtained with the help of a characterisation method based on a tensile test on a novel butterfly specimen and published previously by the authors. The aim of the present paper is to evaluate that characterisation method on a deep-drawing process. Based on the previous results of the authors, the fracture behaviour is modelled here with the help of the modified Mohr-Coloumb fracture model. The obtained FEA results reveal that shear fracture of the studied material is predicted too early by the used MMC fracture model. A novel adjustment of the model is proposed yielding infinitely high fracture strains at strongly pressure-superimposed stress states. As it is often the case in the state-of-the-art fracture characterisation of high-strenght sheet steels, such stress states were not tested during the previously performed fracture characterisation but occur during the studied deep drawing process. With the help of the adjusted MMC fracture model, it is possible to predict the crack initiation moment very accurately and the crack initiation location sufficiently accurately.
ASJC Scopus Sachgebiete
- Physik und Astronomie (insg.)
- Allgemeine Physik und Astronomie
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in: Journal of Physics: Conference Series, Jahrgang 896, Nr. 1, 012125, 27.09.2017.
Publikation: Beitrag in Fachzeitschrift › Konferenzaufsatz in Fachzeitschrift › Forschung › Peer-Review
}
TY - JOUR
T1 - On modelling of shear fracture in deep drawing of a high-strength dual-phase sheet steel
AU - Behrens, B. A.
AU - Bonk, C.
AU - Peshekhodov, I.
N1 - Funding information: A part of the findings was gained in the frame of the project P 972 of the Research Association for Steel Application (FOSTA), Dusseldorf, Germany, funded by the German Federation of Industrial Research Associations (AiF). The financial support of AiF, project coordiation of FOSTA and technical support of the industrial project committee are gratefully acknowledged.
PY - 2017/9/27
Y1 - 2017/9/27
N2 - The paper presents application of fracture behaviour characterisation results of a dual-phase sheet steel DP600 to an FEA of its deep-drawing for shear fracture prediction. The characterisation results were obtained with the help of a characterisation method based on a tensile test on a novel butterfly specimen and published previously by the authors. The aim of the present paper is to evaluate that characterisation method on a deep-drawing process. Based on the previous results of the authors, the fracture behaviour is modelled here with the help of the modified Mohr-Coloumb fracture model. The obtained FEA results reveal that shear fracture of the studied material is predicted too early by the used MMC fracture model. A novel adjustment of the model is proposed yielding infinitely high fracture strains at strongly pressure-superimposed stress states. As it is often the case in the state-of-the-art fracture characterisation of high-strenght sheet steels, such stress states were not tested during the previously performed fracture characterisation but occur during the studied deep drawing process. With the help of the adjusted MMC fracture model, it is possible to predict the crack initiation moment very accurately and the crack initiation location sufficiently accurately.
AB - The paper presents application of fracture behaviour characterisation results of a dual-phase sheet steel DP600 to an FEA of its deep-drawing for shear fracture prediction. The characterisation results were obtained with the help of a characterisation method based on a tensile test on a novel butterfly specimen and published previously by the authors. The aim of the present paper is to evaluate that characterisation method on a deep-drawing process. Based on the previous results of the authors, the fracture behaviour is modelled here with the help of the modified Mohr-Coloumb fracture model. The obtained FEA results reveal that shear fracture of the studied material is predicted too early by the used MMC fracture model. A novel adjustment of the model is proposed yielding infinitely high fracture strains at strongly pressure-superimposed stress states. As it is often the case in the state-of-the-art fracture characterisation of high-strenght sheet steels, such stress states were not tested during the previously performed fracture characterisation but occur during the studied deep drawing process. With the help of the adjusted MMC fracture model, it is possible to predict the crack initiation moment very accurately and the crack initiation location sufficiently accurately.
UR - http://www.scopus.com/inward/record.url?scp=85032455726&partnerID=8YFLogxK
U2 - 10.1088/1742-6596/896/1/012125
DO - 10.1088/1742-6596/896/1/012125
M3 - Conference article
AN - SCOPUS:85032455726
VL - 896
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
SN - 1742-6588
IS - 1
M1 - 012125
T2 - 36th IDDRG Conference 2017: Materials Modelling and Testing for Sheet Metal Forming
Y2 - 2 July 2017 through 6 July 2017
ER -