Results 21 to 30 of about 5,266 (303)
A Comparison of Plasticity Regularization Approaches for Geodynamic Modeling
Geochemistry, Geophysics, Geosystems, 2023 The emergence, geometry and activation of faults are intrinsically linked to frictional rheology. The latter is thus a central element in geodynamic simulations which aim at modeling the generation and evolution of fault zones and plate boundaries ...
Thibault Duretz +3 more
doaj +1 more source
Interface Instability in Shear-Banding Flow [PDF]
Physical Review Letters, 2006 We report on the spatio-temporal dynamics of the interface in shear-banding flow of a wormlike micellar system (cetyltrimethylammonium bromide and sodium nitrate in water) during a start-up experiment. Using the scattering properties of the induced structures, we demonstrate the existence of an instability of the interface between bands along the ...
Lerouge, Sandra +2 more
openaire +3 more sources
Shear Banding in Entangled Polymers: Stress Plateau, Banding Location, and Lever Rule
, 2021 Using molecular dynamics simulation, we study shear banding of entangled polymer melts under a steady shear. The steady shear stress vs shear rate curve exhibits a plateau spanning nearly two decades of shear rates in which shear banding is observed, and
Lijia An (538065) +3 more
core +4 more sources
Shear Banding in a Contact Problem between Metallic Glasses
Metals, 2021 The case of a frictionless contact between a spherical body and a flat metallic glass is studied using a mesoscopic description of plasticity combined with a semi-analytical description of the elastic deformation in a contact geometry (code ISAAC ...
Anne Tanguy +3 more
doaj +1 more source
An index of shear banding susceptibility of metallic glasses [PDF]
, 2016 By virtue of instability analysis, an index of shear banding susceptibility of metallic glasses (MGs): the critical strain localization factor to initiate an embryonic shear band:chi = gamma(b)/gamma(m) (gamma(b) shear strain in the embryonic shear band ...
Zhang M +3 more
core +1 more source
Elastic criterion for shear-banding instability in amorphous solids
, 2022 In amorphous solids, plastic flow is prone to localization into shear bands via an avalanche of sheartransformation (ST) rearrangements of constituent atoms or particles.
Lu, Y. Z. +7 more
core +2 more sources
Nature of ductile shear banding under shock loading
Micro & Nano Letters, 2021 Under shock loading, the plastic flow of polycrystalline material tends to localise into shear bands. As shear bands form, most materials dramatically lose their strain hardening property and quickly fail.
Feng Zhao
doaj +1 more source
SHEAR BAND OBSERVATIONS AND DERIVATIONS OF REQUIREMENTS FOR A SHEAR BAND MODEL
Le Journal de Physique Colloques, 1985 Observations of shear banding in fragmenting cylinders and in dynamic punch tests were analyzed for guidance in development of a theoretical model. The fragmenting cylinder tests led to a micro-mechanical model containing nucleation and growth processes for micro shear bands.
Seaman, L. +4 more
openaire +2 more sources
Morphology of Anisotropic Banded Structures in an Emulsion under Simple Shear
Fluids, 2023 The formation of flow-induced, oriented structures in two-phase systems, as in this study, is a phenomenon of considerable interest to the scientific and industrial sectors.
Jairo Eduardo Leiva Mateus +3 more
doaj +1 more source
Crystals, 2020 The evolution of microstructure and texture in three non-equiatomic CrMnFeCoNi high-entropy alloys (HEAs) with varying stacking fault energy (SFE) has been studied in up to 90% rolling reductions at both room and cryogenic temperature.
G. Dan Sathiaraj +3 more
doaj +1 more source