Implementation of plastic thickness strain in an equivalent drawbead model based on a penalty constrained model


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Meinders, T. and Geijselaers, H.J.M. and Huetink, J. (1998) Implementation of plastic thickness strain in an equivalent drawbead model based on a penalty constrained model. In: International Conference on Numerical Methods in Industrial Forming Processes, NUMIFORM, 22-25 June 1998, Enschede.

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Abstract:Drawbeads are applied in the deep drawing process to improve the control of the material flow
during the forming operation. These drawbeads can be replaced by an equivalent drawbead in simulations of
the deep drawing process. In this paper the implementation of an equivalent drawbead model in a finite
element code is described. This equivalent drawbead takes not only the drawbead restraining force into
account, but also the plastic thickness strain and the drawbead lift force. Simulations of the deep drawing of a
rectangular product are performed to test the equivalent drawbead performance. For verification, the product
is stamped as well to obtain experimental information. It can be concluded that the simulations, including the
new equivalent drawbead model, show a very good correlation with the experimental results when an elastic
plastic material model is used.
Item Type:Conference or Workshop Item
Copyright:Balkema
Faculty:
Engineering Technology (CTW)
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Link to this item:http://purl.utwente.nl/publications/59302
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