Finite element simulation of aluminum sheet warm forming using alflow hardening model


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Kurukuri, S. and Boogaard van den, A.H. and Huetink, J. (2007) Finite element simulation of aluminum sheet warm forming using alflow hardening model. In: IX International Conference on Computational Plasticity, COMPLAS 2007, 5-7 September 2007, Barcelona, Spain.

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Abstract:In order to accurately model the plastic deformation of Aluminum sheet at elevated temperatures, a model is required that incorporate the temperature and strain rate dependency of the material. In this article, two physically based models are compared: Bergstr¨om and Alflow model. Although both models can be fit quite well to monotonic tensile tests of 5754-O alloy, large differences appear if strain rate jumps are applied. The Alflow model also represents the negative strain rate sensitivity behavior of Al-Mg alloys at temperatures below 125±C.
Item Type:Conference or Workshop Item
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Engineering Technology (CTW)
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Link to this item:http://purl.utwente.nl/publications/59636
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