Browse Publications Technical Papers 2011-01-0007
2011-04-12

A Mixed-Mode Fracture Criterion for AHSS Cracking Prediction at Large Strain 2011-01-0007

Predicting AHSS cracking during crash events and forming processes is an enabling technology for AHSS application. Several fracture criteria including MatFEM and Modified Mohr-Coulomb Criterion were developed recently. However, none of them are designed to cover more fracture modes such as bending fracture and tearing fracture with initial damage. A mixed-mode fracture criterion (MMFC) is proposed and developed to capture multiple fracture modes including in-plane shearing fracture, cross-thickness shearing fracture with bending effect and tearing fracture with initial damage. The associated calibration procedure for this criterion is developed. The criterion is implemented in a commercial FEA code and several lab validations are conducted. The results show its promising potential to predict AHSS cracking at large strain conditions.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 18% off list price.
Login to see discount.
We also recommend:
JOURNAL ARTICLE

Loading Path Dependence of Forming Limit Diagram of a TRIP800 Steel

2011-01-0019

View Details

TECHNICAL PAPER

Modeling of Spot Weld under Impact Loading and Its Effect on Crash Simulation

2006-01-0959

View Details

TECHNICAL PAPER

Testing and Finite Element Modeling of Hydroform Frames in Crash Applications

2007-01-0981

View Details

X