Results 21 to 30 of about 998 (119)

Interface Instability in Shear-Banding Flow [PDF]

open access: yesPhysical 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

The Formation and Evolution of Shear Bands in Plane Strain Compressed Nickel-Base Superalloy

open access: yesMetals, 2018
The formation and evolution of shear bands in Inconel 718 nickel-base superalloy under plane strain compression was investigated in the present work.
Bin Tang   +5 more
doaj   +1 more source

Prediction of Shear Localisation in Granular Materials based on a Critical State Non-coaxial Model [PDF]

open access: yesE3S Web of Conferences, 2019
Experimental evidence indicates that the shear localisation acts as a precursor to the failure in biaxial compression tests of granular materials. Once formed they are persistent and lead to progressive failure of most geotechnical structures.
Mallikarachchi Hansini, Soga Kenichi
doaj   +1 more source

Adiabatic shear bands produced in a metallic armor, after dynamic compression with a Hopkinson pressure bar

open access: yesJournal of Materials Research and Technology, 2022
A Brazilian high hardness armor (HHA) steel was, for the first time dynamically tested and microstructurally analyzed for the occurrence of shear bands.
Suzane de Sant’ Ana Oliveira   +5 more
doaj   +1 more source

Formation of bulk-laminated materials by localized deformation during ECAP of an AA6060 aluminum alloy [PDF]

open access: yesMATEC Web of Conferences, 2020
This paper addresses localized plastic flow during equal-channel angular pressing (ECAP) of an AA6060 aluminum alloy. We observe an alternating formation of shear bands and matrix bands during ECAP that leads to pronounced strain partitioning without ...
Wagner Martin Franz-Xaver, Frint Philipp
doaj   +1 more source

Effects of pore diameter and B2–NiTi crystal on plasticity of amorphous Ni–Ti alloy based on molecular dynamics simulation

open access: yesJournal of Materials Research and Technology, 2023
The poor plasticity of metallic glasses (MGs) limits its applicability as engineering materials. Therefore, it is particularly important to find ways to improve the plasticity of metallic glasses.
Yu Zhou   +5 more
doaj   +1 more source

SHEAR BAND OBSERVATIONS AND DERIVATIONS OF REQUIREMENTS FOR A SHEAR BAND MODEL

open access: yesLe 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

Numerical investigation of the influence of shear band localization on the resonant behavior in the VHCF regime

open access: yesTheoretical and Applied Mechanics Letters, 2014
The monitored resonant behavior of fatigue specimens of metastable austenitic stainless steel (AISI304) is correlated with its damage accumulation in the very high cycle fatigue (VHCF) regime.
Philipp-M. Hilgendorff   +4 more
doaj   +1 more source

The Role of Deformation Bands in Dictating Poromechanical Properties of Unconsolidated Sand and Sandstone

open access: yesGeochemistry, Geophysics, Geosystems, 2020
Cataclastic shear bands in sands and sandstones are typically stronger, stiffer, and exhibit lower permeability than the surrounding matrix, and therefore act as barriers to fluid flow.
Peter K. Miller   +2 more
doaj   +1 more source

Soil Particle Movement and Shear Band Development during Plane Strain Compression [PDF]

open access: yesE3S Web of Conferences, 2019
Most geotechnical structures failed by formation and development of shear bands in soils. Thus, shear deformation and shear bands development evaluation are necessary to understand shear failure mechanism.
Hwang Junggeun, Ling Hoe I.
doaj   +1 more source

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