[HTML][HTML] New ductile fracture criterion for prediction of fracture forming limit diagrams of sheet metals
A ductile fracture criterion is newly proposed to model fracture behavior of sheet metals for
nucleation, growth and shear coalescence of voids during plastic deformation. In the new …
nucleation, growth and shear coalescence of voids during plastic deformation. In the new …
Analysis of forming limits using ductile fracture criteria
F Ozturk, D Lee - Journal of Materials Processing Technology, 2004 - Elsevier
The application of the ductile fracture criteria for the prediction of the forming limit diagram
(FLD) of sheet metal was investigated. The limit strains for the FLD were determined by …
(FLD) of sheet metal was investigated. The limit strains for the FLD were determined by …
A theoretical prediction framework for the construction of a fracture forming limit curve accounting for fracture pattern transition
It has been accepted that the formability of a sheet metal with a moderate ductility can be
limited by not only localized necking (LN), but also ductile fracture (DF). In this study, a …
limited by not only localized necking (LN), but also ductile fracture (DF). In this study, a …
A ductile fracture criterion in sheet metal forming process
HN Han, KH Kim - Journal of Materials Processing Technology, 2003 - Elsevier
Forming limit curves at neck (FLCN) and forming limit curves at fracture (FLCF) for various
steel sheets were determined from a hemispherical punch stretching. The measured FLCF …
steel sheets were determined from a hemispherical punch stretching. The measured FLCF …
Experimental analysis of strain path dependent ductile damage mechanics and forming limits
CC Tasan, JPM Hoefnagels, C Ten Horn… - Mechanics of …, 2009 - Elsevier
This paper contributes to the physical understanding of sheet metal micro-mechanics by
addressing the influence of damage evolution on localization and eventually ductile fracture …
addressing the influence of damage evolution on localization and eventually ductile fracture …
The development of continuum damage mechanics-based theories for predicting forming limit diagrams for hot stamping applications
This paper presents a novel plane-stress continuum damage mechanics (CDM) model for
the prediction of the different shapes of forming limit diagrams (FLCs) for aluminium alloys …
the prediction of the different shapes of forming limit diagrams (FLCs) for aluminium alloys …
Logistic regression analysis for experimental determination of forming limit diagrams
M Strano, BM Colosimo - International Journal of Machine Tools and …, 2006 - Elsevier
The forming limit diagram (FLD) is probably the most common representation of sheet metal
formability and can be defined as the locus of the principal planar strains where failure is …
formability and can be defined as the locus of the principal planar strains where failure is …
Forming limit of sheet metals in meso-scale plastic forming by using different failure criteria
The ductile failure of sheet metals in micro/mesoscale plastic deformation is influenced by
grain and geometry size effects. Based on the forming limit experiments of copper sheet …
grain and geometry size effects. Based on the forming limit experiments of copper sheet …
Fracture prediction in metal sheets
YW Lee - 2005 - dspace.mit.edu
One of the most important failure modes of thin-walled structures is fracture. Fracture is
predominantly tensile in nature and, in most part, is operated by the physical mechanisms of …
predominantly tensile in nature and, in most part, is operated by the physical mechanisms of …
Fracture prediction of thin plates under localized impulsive loading. Part II: discing and petalling
YW Lee, T Wierzbicki - International Journal of Impact Engineering, 2005 - Elsevier
The onset of fracture and subsequent propagation of radial cracks of thin clamped circular
plates under localized impulsive loading were predicted analytically and numerically for …
plates under localized impulsive loading were predicted analytically and numerically for …