Predicting Forming Limit Curve Using a New Ductile Failure Criterion General Motors LLC

Format:

Conference/Event

Author/Creator:

Sheng, Sheng, author.

Contributor:

Mallick, Pankaj

Conference Name:

WCX 17: SAE World Congress Experience (2017-04-04 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2017

Summary:

AbstractBased 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

Notes:

Vendor supplied data

Publisher Number:

2017-01-0312

Access Restriction:

Restricted for use by site license