Limits to ductility set by plastic flow localization

A Needleman, JR Rice - Mechanics of Sheet Metal Forming: Material …, 1978 - Springer
The theory of strain localization is reviewed with reference both to local necking in sheet
metal forming processes and to more general three dimensional shear band localizations …

Effect of strain path change on limits to ductility of anisotropic metal sheets

M Kuroda, V Tvergaard - International Journal of Mechanical Sciences, 2000 - Elsevier
Localized necking in thin metal sheets is analyzed by using the M–K-model approach, and
the effect of a number of different non-proportional strain paths prior to the occurrence flow …

Effect of yield surface curvature and void nucleation on plastic flow localization

V Tvergaard - Journal of the Mechanics and Physics of Solids, 1987 - Elsevier
The effect of void nucleation is incorporated in a recently proposed material model that
accounts for a combination of kinematic hardening and isotropic hardening of a porous …

Analyses of plastic flow localization in metals

A Needleman, V Tvergaard - 1992 - asmedigitalcollection.asme.org
The continuum mechanics framework for analyzing plastic flow localization is reviewed. The
prediction of the localization of deformation into shear bands is sensitive to the constitutive …

Localized necking in thin sheets

S Stören, JR Rice - Journal of the Mechanics and Physics of Solids, 1975 - Elsevier
B y using a simplified constitutive model of a pointed vertex on subsequent yield loci,
namely, such that the equations of deformation-theory of rigid-plastic solids apply for fully …

A unified bifurcation analysis of sheet metal forming limits

X Zhu, K Weinmann, A Chandra - J. Eng. Mater …, 2001 - asmedigitalcollection.asme.org
The purpose of this study is to determine analytically the orientations of localized necks
occurring in sheet metal forming processes, and obtain the corresponding forming limit …

On localization and void coalescence as a precursor to ductile fracture

C Tekoğlu, JW Hutchinson… - … Transactions of the …, 2015 - royalsocietypublishing.org
Two modes of plastic flow localization commonly occur in the ductile fracture of structural
metals undergoing damage and failure by the mechanism involving void nucleation, growth …

An extended Modified Maximum Force Criterion for the prediction of localized necking under non-proportional loading

N Manopulo, P Hora, P Peters, M Gorji… - International Journal of …, 2015 - Elsevier
Strain localization is one of the main sources of failure in sheet forming processes. State of
the art forming limit curves allow the prediction of localization for linear strain paths but fall …

Effect of cube texture on sheet metal formability

PD Wu, SR MacEwen, DJ Lloyd, KW Neale - Materials Science and …, 2004 - Elsevier
The effect of the cube texture on the initiation of localized necking is studied numerically.
The forming limit diagram (FLD) is constructed based on crystal plasticity theory in …

Marciniak–Kuczynski type modelling of the effect of through-thickness shear on the forming limits of sheet metal

P Eyckens, A Van Bael, P Van Houtte - International Journal of Plasticity, 2009 - Elsevier
The Marciniak–Kuczynski (MK) forming limit model is extended in order to predict localized
necking in sheet metal forming operations in which Through-Thickness Shear (TTS), also …