A theoretical approach of strain localization within thin planar bands in porous ductile materials

JB Leblond, G Mottet - Comptes Rendus Mécanique, 2008 - Elsevier
Propagation of cracks in ductile materials is well known to occur through two possible
mechanisms: coalescence of cavities and formation of shear bands ('void sheet …

Influence of void nucleation on ductile shear fracture at a free surface

V Tvergaard - Journal of the Mechanics and Physics of Solids, 1982 - Elsevier
A n approximate continuum model of a ductile, porous material is used to study the influence
of the nucleation and growth of micro-voids on the formation of shear bands and the …

Effect of void locking by inclusions upon the plastic behavior of porous ductile solids—part II: theoretical modeling and numerical study of void coalescence

K Siruguet, JB Leblond - International Journal of Plasticity, 2004 - Elsevier
The aim of this work is to pursue the modeling of the influence of inclusions upon the
behavior of porous ductile materials, initiated in Part I devoted to void growth prior to …

Influence of voids on shear band instabilities under plane strain conditions

V Tvergaard - International Journal of fracture, 1981 - Springer
The effect of microscopic voids on the failure mechanism of a ductile material is investigated
by considering an elastic-plastic medium containing a boubly periodic array of circular …

Synergistic effects of plastic anisotropy and void coalescence on fracture mode in plane strain

AA Benzerga, J Besson, R Batisse… - … and Simulation in …, 2001 - iopscience.iop.org
The macroscopic fracture in plane strain is known to be shear-like in ductile materials. In
most structural materials, fracture starts after diffuse necking, at the centre of the specimen …

Application of a model of plastic porous materials including void shape effects to the prediction of ductile failure under shear-dominated loadings

L Morin, JB Leblond, V Tvergaard - Journal of the Mechanics and Physics …, 2016 - Elsevier
An extension of Gurson's famous model (Gurson, 1977) of porous plastic solids,
incorporating void shape effects, has recently been proposed by Madou and Leblond …

Numerical study and theoretical modelling of void growth in porous ductile materials subjected to cyclic loadings

R Lacroix, JB Leblond, G Perrin - European Journal of Mechanics-A/Solids, 2016 - Elsevier
Experiments have shown that in porous ductile materials, cyclic loadings lead to lower
fracture strains than monotone ones. The effect has been tentatively ascribed to a continued …

Theoretical and numerical analysis of void coalescence in porous ductile solids under arbitrary loadings

ME Torki, C Tekoglu, JB Leblond… - International Journal of …, 2017 - Elsevier
Micromechanics-based constitutive relations are developed to model plasticity in solids with
relatively high levels of porosity. They are especially appropriate to model void coalescence …

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 …

A criterion for void coalescence in anisotropic ductile materials

SM Keralavarma, S Chockalingam - International Journal of Plasticity, 2016 - Elsevier
Plastic anisotropy in the form of texture development and void shape evolution can
significantly affect damage growth rates and overall strain to failure in ductile materials. A …