A detailed investigation of the influence of anisotropic hardening models on drawbead restraining force is presented in this paper. The recently modified Yoshida model is adopted to characterize the anisotropic hardening behavior for steels. A two-dimensional drawbead model is used and the restraining forces corresponding to several different bead penetrations are obtained and compared against experimental results. The comparison of the predicted results for the Modified Yoshida Model with isotropic hardening models indicates that the anisotropic hardening gives lower drawbead restraining forces in general. The impact of hardening models on springback is also presented, and it's demonstrated that the springback amount predicted by the modified Yoshida model is much closer to the experimental data than that predicted by conventional isotropic hardening model.
Drawbead Restraining Force Modeling with Anisotropic Hardening
Sae Int. J. Mater. Manuf
Sae International Journal of Materials and Manufacturing
SAE 2010 World Congress & Exhibition ; 2010
Sae International Journal of Materials and Manufacturing ; 3 , 1 ; 711-715
2010-04-12
5 pages
Conference paper
English
Drawbead Restraining Force Modeling: Nonlinear Friction
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