Details
| Translated title of the contribution | Modellierung der duktilen Schädigung: Anwendung für das Knüppelscheren |
|---|---|
| Original language | English |
| Pages (from-to) | 1353-1363 |
| Number of pages | 11 |
| Journal | Materialwissenschaft und Werkstofftechnik |
| Volume | 50 |
| Issue number | 11 |
| Publication status | Published - 14 Nov 2019 |
Abstract
The finite element method is becoming a reliable tool for designing manufacturing processes. Even in bar shearing, which is a basic operation in the metalworking industry, the finite element method is increasingly employed for the optimization of the process. Ductile damage modeling is crucial thereby. Recent experimental investigations have shown that, in particular, triaxiality and temperature must be considered in the constitutive description of damage in the shear zone. In this context, the Hooputra's criterion is in this work applied for the numerical simulation of shearing taking account of different stress states and temperatures. The parameterization of the model is based on wide experimental investigations. Characterization tests on smooth and notched cylindrical specimens as well as on flat shear specimens are carried out. The selected material for this investigation is the aluminum alloy AW6082. Subsequently, the numerical calculation of shearing is performed. By comparing the simulation results with data from experimental shearing, the importance of the consideration of the temperature gradients and the different triaxiality values in the shear zone is proven.
ASJC Scopus subject areas
- Materials Science(all)
- General Materials Science
- Physics and Astronomy(all)
- Condensed Matter Physics
- Engineering(all)
- Mechanics of Materials
- Engineering(all)
- Mechanical Engineering
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In: Materialwissenschaft und Werkstofftechnik, Vol. 50, No. 11, 14.11.2019, p. 1353-1363.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Modeling of the ductile damage
T2 - Application for bar shearing
AU - Moakhar, S.
AU - Hentati, H.
AU - Barkallah, M.
AU - Louati, J.
AU - Haddar, M.
AU - Bonk, Christian
AU - Behrens, Bernd-Arno
N1 - Acknowledgements: The authorsgratefully acknowledge Dr.-Ing.H.Hooputrafor his insightful comments.
PY - 2019/11/14
Y1 - 2019/11/14
N2 - The finite element method is becoming a reliable tool for designing manufacturing processes. Even in bar shearing, which is a basic operation in the metalworking industry, the finite element method is increasingly employed for the optimization of the process. Ductile damage modeling is crucial thereby. Recent experimental investigations have shown that, in particular, triaxiality and temperature must be considered in the constitutive description of damage in the shear zone. In this context, the Hooputra's criterion is in this work applied for the numerical simulation of shearing taking account of different stress states and temperatures. The parameterization of the model is based on wide experimental investigations. Characterization tests on smooth and notched cylindrical specimens as well as on flat shear specimens are carried out. The selected material for this investigation is the aluminum alloy AW6082. Subsequently, the numerical calculation of shearing is performed. By comparing the simulation results with data from experimental shearing, the importance of the consideration of the temperature gradients and the different triaxiality values in the shear zone is proven.
AB - The finite element method is becoming a reliable tool for designing manufacturing processes. Even in bar shearing, which is a basic operation in the metalworking industry, the finite element method is increasingly employed for the optimization of the process. Ductile damage modeling is crucial thereby. Recent experimental investigations have shown that, in particular, triaxiality and temperature must be considered in the constitutive description of damage in the shear zone. In this context, the Hooputra's criterion is in this work applied for the numerical simulation of shearing taking account of different stress states and temperatures. The parameterization of the model is based on wide experimental investigations. Characterization tests on smooth and notched cylindrical specimens as well as on flat shear specimens are carried out. The selected material for this investigation is the aluminum alloy AW6082. Subsequently, the numerical calculation of shearing is performed. By comparing the simulation results with data from experimental shearing, the importance of the consideration of the temperature gradients and the different triaxiality values in the shear zone is proven.
KW - bar shearing
KW - Damage model
KW - finite element method
KW - fracture characteristic tests
KW - temperature
KW - triaxiality
UR - http://www.scopus.com/inward/record.url?scp=85075105198&partnerID=8YFLogxK
U2 - 10.1002/mawe.201800128
DO - 10.1002/mawe.201800128
M3 - Article
AN - SCOPUS:85075105198
VL - 50
SP - 1353
EP - 1363
JO - Materialwissenschaft und Werkstofftechnik
JF - Materialwissenschaft und Werkstofftechnik
SN - 0933-5137
IS - 11
ER -