Simulation and verification of different parameters effect on springback results
Author
Summary, in English
Today, simulation of springback has still not reached enough accuracy for acceptance as a production tool in the automotive industry. Further investigations need to be done in order to understand how to improve the results in an efficient way. In order to investigate which parameters that are important for the
accuracy in a springback simulation, a parameter study of a U-shaped rail was performed. In the literature several similar studies can be found, but few of them have been analysing the effect of the stress variation. In our investigation these were studied together with the geometrical springback. In order to see the effect of different restraining conditions, five different blank holder forces were applied. Three different materials were studied both experimentally and numerically. The analysed materials were: a mild steel, an extra high strength steel and an aluminium grade. It can be concluded that several of the studied parameters show small effect on the springback results whereas other parameters show significant influence, such as element size in blank and tool and choice of hardening law. The result showed good agreement for the case, which were tuned in to experimental results. The materials showed that different settings were needed for the different materials.
accuracy in a springback simulation, a parameter study of a U-shaped rail was performed. In the literature several similar studies can be found, but few of them have been analysing the effect of the stress variation. In our investigation these were studied together with the geometrical springback. In order to see the effect of different restraining conditions, five different blank holder forces were applied. Three different materials were studied both experimentally and numerically. The analysed materials were: a mild steel, an extra high strength steel and an aluminium grade. It can be concluded that several of the studied parameters show small effect on the springback results whereas other parameters show significant influence, such as element size in blank and tool and choice of hardening law. The result showed good agreement for the case, which were tuned in to experimental results. The materials showed that different settings were needed for the different materials.
Publishing year
2002
Language
English
Pages
201-210
Publication/Series
Proceedings of the 5th International Conference and Workshop on Numerical Simulation of 3D Sheet Forming Processes (NUMISHEET 2002)
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Document type
Conference paper
Topic
- Materials Engineering
- Transport Systems and Logistics
Conference name
5th International Conference and Workshop on Numerical Simulation of 3D Sheet Forming Processes (NUMISHEET 2002)
Conference date
0001-01-02
Conference place
Jeju Island, Korea, Republic of
Status
Published