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Application of Damage Models in Bending and Hydroforming of Aluminum Alloy Tube
Technical Paper
2004-01-0835
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
This paper examines the application of damage models in tube bending and subsequent hydroforming of AlMg3.5Mn aluminum alloy tubes. An in-house Gurson-based damage model, incorporated within LS-DYNA, has been used for the simulations. The applied damage model contains several void nucleation and growth parameters that must be determined for each material. A simpler straight tube hydroforming process was considered first to check the damage parameters and predicted ductility. Then the model was applied to a sequence of bending and hydroforming. The damage history from pre-bending was mapped to the hydroforming stage, to allow prediction of the overall ductility. The applied forming parameters in the simulation were based on data extracted during the experimental tests. Finally, the numerical results were compared to the experimental data.
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Citation
Gholipour, J., Worswick, M., and Oliveira, D., "Application of Damage Models in Bending and Hydroforming of Aluminum Alloy Tube," SAE Technical Paper 2004-01-0835, 2004, https://doi.org/10.4271/2004-01-0835.Also In
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