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

Event
SAE 2011 World Congress & Exhibition
Authors Abstract
Content
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.
Meta TagsDetails
DOI
https://doi.org/10.4271/2011-01-0007
Pages
17
Citation
Zhu, H., and Zhu, X., "A Mixed-Mode Fracture Criterion for AHSS Cracking Prediction at Large Strain," SAE Int. J. Mater. Manf. 4(1):10-26, 2011, https://doi.org/10.4271/2011-01-0007.
Additional Details
Publisher
Published
Apr 12, 2011
Product Code
2011-01-0007
Content Type
Journal Article
Language
English