CLC number: TG301
On-line Access: 2024-08-27
Received: 2023-10-17
Revision Accepted: 2024-05-08
Crosschecked: 2011-06-21
Cited: 0
Clicked: 6088
Qian Wang, Xiang-huai Dong, He-zong Li, Hai-ming Zhang. Analytical model for straight hemming based on minimum energy method[J]. Journal of Zhejiang University Science A, 2011, 12(7): 532-542.
@article{title="Analytical model for straight hemming based on minimum energy method",
author="Qian Wang, Xiang-huai Dong, He-zong Li, Hai-ming Zhang",
journal="Journal of Zhejiang University Science A",
volume="12",
number="7",
pages="532-542",
year="2011",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A1000458"
}
%0 Journal Article
%T Analytical model for straight hemming based on minimum energy method
%A Qian Wang
%A Xiang-huai Dong
%A He-zong Li
%A Hai-ming Zhang
%J Journal of Zhejiang University SCIENCE A
%V 12
%N 7
%P 532-542
%@ 1673-565X
%D 2011
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A1000458
TY - JOUR
T1 - Analytical model for straight hemming based on minimum energy method
A1 - Qian Wang
A1 - Xiang-huai Dong
A1 - He-zong Li
A1 - Hai-ming Zhang
J0 - Journal of Zhejiang University Science A
VL - 12
IS - 7
SP - 532
EP - 542
%@ 1673-565X
Y1 - 2011
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A1000458
Abstract: An analytical model for straight hemming was developed based on minimum energy method to study the effect of flanging die corner radius on hemming qualities. In order to calculate plastic strain and strain energy more exactly, the neutral layer of specimen corner after hemming is assumed to be a half ellipse with its major semi-axis unknown. Isotropic hardening rule is adopted to describe bending and reverse bending processes neglecting Bauschinger effect. The model takes into account the material property parameters in order to satisfy a wide application range of different materials. Specimen profile, creepage/growing (roll-in/roll-out) and maximum equivalent strain are predicted, which are greatly influenced by the flanging die corner radius. Experimental facilities were designed and hemming experiments were undertaken. The predicted results of the present analytical model were compared to experimental data as well as finite element (FE) simulation results. It was confirmed that they are in good agreement, and the model can be used to evaluate whether the material used as an outer panel for hemming is appropriate and to optimize process parameters when the material used for hemming is changed.
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