A multi-scale friction model framework for full scale sheet forming simulations

Hol, J. and Meinders, V.T. and Huetink, J. (2011) A multi-scale friction model framework for full scale sheet forming simulations. In: 14th International ESAFORM Conference on Material Forming, ESAFORM 2011, 27-29 April 2011, Belfast, Northern Ireland.

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Abstract:	In this paper a numerical framework is proposed which accounts for the most important friction mechanisms. Static flattening and flattening due to bulk strain are accounted for by theoretical models on a microscale. Based on statistical parameters a fast and efficient translation from micro- to macro modeling is included. A general overview of the friction model is presented and the translation from micro to macro modeling is outlined. The development of real area of contact is described by the flattening models and the effect of ploughing and adhesion on the coefficient of friction is described by a micro-scale friction model. A brief theoretical background of these models is given. The flattening models are validated by means of FE simulations on microscale and the feasibility of the advanced macroscopic friction model is proven by a full scale sheet metal forming simulation.
Item Type:	Conference or Workshop Item
Copyright:	© 2011 American Institute of Physics
Faculty:	Engineering Technology (CTW)
Research Chair:	Mechanics of Forming Technology (MFT)
Research Group:	Applied Mechanics (AM)
Link to this item:	http://purl.utwente.nl/publications/76776
Official URL:	http://dx.doi.org/10.1063/1.3589516
Conference URL:	http://www.qub.ac.uk/sites/ESAFORM2011/
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