Predicting Forming Limit Curve Using a New Ductile Failure Criterion
Predicting Forming Limit Curve Using a New Ductile Failure Criterion
- New search for: Mallick, Pankaj
- New search for: Sheng, ZiQiang
- New search for: Mallick, Pankaj
- New search for: Sheng, ZiQiang
Based on findings from micromechanical studies, a Ductile Failure Criterion (DFC) was proposed. The proposed DFC treats localized necking as failure and critical damage as a function of strain path and initial sheet thickness. Under linear strain path assumption, a method to predict Forming Limit Curve (FLC) is derived from this DFC. With the help of predetermined effect functions, the method only needs a calibration at uniaxial tension. The approach was validated by predicting FLCs for sixteen different aluminum and steel sheet metal materials. Comparison shows that the prediction matches quite well with experimental observations in most cases.
Document information
Predicting Forming Limit Curve Using a New Ductile Failure Criterion
Sae Technical Papers
WCX™ 17: SAE World Congress Experience ; 2017
2017-03-28
Conference paper
English
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