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Rheologica Acta, 1985
New experimental data obtained from constant stress rheometers are used to show that the yield stress concept is an idealization, and that, given accurate measurements, no yield stress exists. The simple Cross model is shown to be a useful empiricism for many non-Newtonian fluids, including those which have hitherto been thought to possess a yield ...
H A Barnes
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New experimental data obtained from constant stress rheometers are used to show that the yield stress concept is an idealization, and that, given accurate measurements, no yield stress exists. The simple Cross model is shown to be a useful empiricism for many non-Newtonian fluids, including those which have hitherto been thought to possess a yield ...
H A Barnes
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Journal of Non-Newtonian Fluid Mechanics, 2018
Abstract Yield stress materials are known to possess a certain threshold property, a strength , that must be overcome in order for flow to occur. This strength is commonly conceived as a scalar representation of the stress tensor at the yielding point, here called the yield stress tensor .
Roney Thompson +2 more
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Abstract Yield stress materials are known to possess a certain threshold property, a strength , that must be overcome in order for flow to occur. This strength is commonly conceived as a scalar representation of the stress tensor at the yielding point, here called the yield stress tensor .
Roney Thompson +2 more
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Yield stress and thixotropy: on the difficulty of measuring yield stresses in practice
Soft Matter, 2006The yield stress of many yield stress fluids has turned out to be difficult to determine experimentally. This has led to various discussions in the literature about those experimental difficulties, and the usefulness and pertinence of the concept of yield stress fluids. We argue here that most of the difficulties disappear when taking the thixotropy of
Moller, P.C.F., Mewis, J., Bonn, D.
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Yield Stress Fluids Slowly Yield to Analysis
Science, 2009The behavior of a type of complex fluid (exemplified by mayonnaise and concrete) can depend on the sample's flow history.
Bonn, D., Denn, M.M.
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Coiling of yield stress fluids
Physical Review E, 2011We present an experimental investigation of the coiling of a filament of a yield stress fluid falling on a solid surface. We use two kinds of yield stress fluids, shaving foam and hair gel, and show that the coiling of the foam is similar to the coiling of an elastic rope.
Rahmani, Y. +3 more
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Stress stability at the yield surface
International Journal of Non-Linear Mechanics, 1995zbMATH Open Web Interface contents unavailable due to conflicting licenses.
A. PAGLIETTI, PORCU, MARIA CRISTINA
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Magnetohydrodynamics, 2007
Recent experimental as well as theoretical investigations have shown that the formation of structures of magnetic nanoparticles has significant influence on the behaviour of ferrofluids. The dependence of this structure formation on the magnetic field strength and shear stress applied to the fluid leads to strong changes of the viscosity and to the ...
HAMID SHAHNAZIAN, STEFAN ODENBACH
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Recent experimental as well as theoretical investigations have shown that the formation of structures of magnetic nanoparticles has significant influence on the behaviour of ferrofluids. The dependence of this structure formation on the magnetic field strength and shear stress applied to the fluid leads to strong changes of the viscosity and to the ...
HAMID SHAHNAZIAN, STEFAN ODENBACH
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The role of plasma in the yield stress of blood
Clinical Hemorheology and Microcirculation, 2023BACKGROUND: Yielding and shear elasticity of blood are merely discussed within the context of hematocrit and erythrocyte aggregation. However, plasma might play a substantial role due its own viscoelasticity.
Windberger, U., Sparer, A., Elsayad, K.
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Advances in yield stress measurements for chocolate
2017Chocolate (a cocoa dispersion), can be defined as a concentrated suspension made up of solid particles, such as sugar, cocoa powder, milk powder, etc., dispersed in a Newtonian liquid, generally cocoa butter. The rheological properties of this matrix are largely influenced by type and quantity of ingredients and processing techniques.
V. Glicerina, S. Romani
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Wicking with a yield stress fluid
Journal of Physics: Condensed Matter, 2008This work presents an experimental investigation of the flow of a model yield stress fluid (yield stresses between 5 and 21 Pa) driven by capillarity in horizontal glass tubes with diameters ranging from 0.46 to 1.5 mm. It is shown that the liquid penetration stops after typically a few centimeters. The results disagree with a simple model based on the
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