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 …

The effect of material path dependent hardening on neck development and the onset of
ductile failure is analyzed numerically. The calculations are carried out using an elastic …

T he effect of a nonuniform distribution of porosity on flow localization and failure in a porous
material is analyzed numerically. The void density distribution and properties used to …

A single layer of voids in u ductile solid, with no other voids present, acts as an
inhomogeneity that promotes the onset of plastic flow localization in a shear band. For such …

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 …

A yield criterion is developed which unifies void growth and void coalescence theories.
Standard void growth theory assumes that plastic flow is diffuse, if not prevalent everywhere …

This review describes the various modelling approaches to the problem of shear
localization. Four types of models have been identified: flow softening, deformation heating …

The effect of material rate sensitivity on the localization of deformation in a porous visco-
plastic solid is examined under plane strain tension and axisymmetric tension conditions …

The influence of void nucleation occurring during the deformation history on shear
localization is investigated by employing a constitutive model of a rate independent porous …

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 …