Edge Fracture Prediction Using Uncoupled Ductile Fracture Models for DP780 Sheet

This paper is a contribution to the prediction of edge fracture behavior using uncoupled ductile fracture models. A fully integrated simulation framework for the edge fracture prediction is proposed with the shear-induced pre-damage considered. User-defined material subroutines are coded with uncoup...

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Veröffentlicht in:	Journal of failure analysis and prevention 2017-04, Vol.17 (2), p.321-329
Hauptverfasser:	Mu, Lei, Wang, Yuan, Zang, Yong, Araujo Stemler, Pedro Malaquias
Format:	Artikel
Sprache:	eng
Schlagworte:	Calibration Characterization and Evaluation of Materials Chemistry and Materials Science Classical Mechanics Computer simulation Corrosion and Coatings Ductile fracture Failure analysis Fracture mechanics Materials Science Mathematical models Quality Control Reliability Safety and Risk Series (mathematics) Solid Mechanics Strain Technical Article > -Peer-Reviewed Tribology
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Beschreibung
Zusammenfassung:	This paper is a contribution to the prediction of edge fracture behavior using uncoupled ductile fracture models. A fully integrated simulation framework for the edge fracture prediction is proposed with the shear-induced pre-damage considered. User-defined material subroutines are coded with uncoupled ductile fracture models (Lou-Huh, Oh, Brozzo) incorporated, which are calibrated using the fracture strains of various loading paths. A series of 3D numerical simulations are performed and compared with the results of hole-expansion tests. The effects of pre-damage field and fracture models are analyzed and discussed.
ISSN:	1547-7029 1728-5674 1864-1245
DOI:	10.1007/s11668-017-0245-z