Forming limit of sheet metals based on mixed hardening model |
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| Authors: | HaiBo Wang Min Wan |
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| Affiliation: | WANG HaiBo & WAN Min School of Mechanical Engineering , Automation,Beihang University,Beijing 100191,China |
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| Abstract: | The calculation method of forming limit of sheet metals based on M-K instability theory is proposed,and the method is applicable to different yield criterions and hardening models.The forming limit dia-grams of AA5754-O,AA6111-T4 aluminum alloy sheet and DP steel sheet under combined loading paths are obtained based on mixed hardening model with YLD2000-2D yield criterion proposed by Barlat in 2003 and L-C nonlinear kinematic hardening model proposed by Lemaitre and Chaboche.The results show that the formin... |
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| Keywords: | plastic forming of sheet metals forming limit hardening model complex loading path |
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