On predicting the forming limit diagram for automotive aluminium sheet
Document Type
Article
Publication Date
1-1-1998
Abstract
Aluminum has considerable potential as a material for automotive panels. The ability to predict forming limit diagrams accurately for aluminum is important for preventing failure in the forming process. A method is proposed to develop forming limits using Hill's1993 yield criterion. Predicted limit strains based on both Hill's 1948 and 1993 yield criterion are compared with experimental data for Aluminum 6111-T4. It is found that Hill's 1993 yield criterion can characterize localized necking in aluminum sheets well, while Hill's 1948 criterion cannot. The critical thickness rule is found useful in predicting the left hand side of FLDs.
Publication Title
CIRP Annals - Manufacturing Technology
Recommended Citation
Xu, S.,
&
Weinmann, K.
(1998).
On predicting the forming limit diagram for automotive aluminium sheet.
CIRP Annals - Manufacturing Technology,
47(1).
http://doi.org/10.1016/s0007-8506(07)62812-1
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/7210