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: Bergström 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.
Original language | English |
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Title of host publication | Computational Plasticity IX - Fundamentals and Applications (COMPLAS 2007), 5-7 September 2007, Barcelona, Spain |
Editors | Eugenio Oñate, David R.J Owen, Benjamín Suárez |
Place of Publication | Barcelona, Spain |
Publisher | CIMNE |
Pages | 635-638 |
Number of pages | 4 |
Volume | 2 |
ISBN (Print) | 978-84-96736-29-0 |
Publication status | Published - 5 Sept 2007 |
Event | 9th International Conference on Computational Plasticity. Fundamentals and Applications, COMPLAS 2007 - Barcelona, Spain Duration: 5 Sept 2007 → 7 Sept 2007 Conference number: 9 |
Conference
Conference | 9th International Conference on Computational Plasticity. Fundamentals and Applications, COMPLAS 2007 |
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Abbreviated title | COMPLAS 2007 |
Country/Territory | Spain |
City | Barcelona |
Period | 5/09/07 → 7/09/07 |
Keywords
- Material model
- Warm forming
- Alflow hardening
- Aluminum