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Miroux, Alexis
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Publications (5/5 displayed)
- 2020Hemming evolution of 6xxx aluminum alloys in the course of natural aging following the continuous annealing
- 2011Simulation of stretch forming with intermediate heat treatments of aircraft skins - A physically based modeling approachcitations
- 2010Mechanical and forming properties of AA6xxx sheet from room to warm temperatures
- 2009An advanced material model for aluminum sheet forming at elevated temperatures
- 2009Controlling the plastic anisotropy in asymmetrically rolled aluminium sheetscitations
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document
An advanced material model for aluminum sheet forming at elevated temperatures
Abstract
A physically-based material model according to Nes is used to simulate the warm forming of Al-Mg-Si sheet. This model incorporates the influence of the temperature and strain rate on the flow stress and on the hardening rate based on storage and dynamic recovery of dislocations. The effect of size and volume fraction of precipitates are considered by means of phenomenological and Orowan relations. The anisotropic behavior of the sheet is described by using the Vegter yield locus. Satisfactory results are obtained for simulation of cylindrical cup drawing.