Results 11 to 20 of about 8,550,318 (390)
Local yield stress statistics in model amorphous solids [PDF]
Physical Review E, 2018 We develop and extend a method presented in [S. Patinet, D. Vandembroucq, and M. L. Falk, Phys. Rev. Lett., 117, 045501 (2016)] to compute the local yield stresses at the atomic scale in model two-dimensional Lennard-Jones glasses produced via differing ...
Barbot, Armand +6 more
core +3 more sources
On the nature of flow curve and categorization of thixotropic yield stress materials [PDF]
Journal of rheology, 2022 Thixotropy is a phenomenon related to time dependent change in viscosity in the presence or absence of flow. The yield stress, on the other hand, represents the minimum value of stress above which steady flow can be sustained.
Tulika Bhattacharyya +3 more
semanticscholar +1 more source
Embedded droplet printing in yield-stress fluids. [PDF]
Proc Natl Acad Sci U S A, 2020 Significance Conventional microfluidic methods primarily rely on fluids that behave in simple ways, like water. Yield-stress fluids are materials that behave in a complex way, dramatically transitioning between solid-like and liquid-like behavior ...
Nelson AZ +4 more
europepmc +2 more sources
Aspiration-assisted freeform bioprinting of prefabricated tissue spheroids in a yield-stress gel. [PDF]
Commun Phys, 2020 Bioprinting of cellular aggregates, such as tissue spheroids, to form three-dimensional (3D) complex-shaped arrangements, has posed a major challenge due to lack of robust, reproducible and practical bioprinting techniques.
Ayan B +8 more
europepmc +2 more sources
Carbomer microgels as model yield-stress fluids
Reviews in chemical engineering, 2021 The review presents current research results for Carbopol-based microgels as yield-stress materials, covering three aspects: chemical, physical and rheological. Such a joint three-aspect study has no analog in the literature.
Z. Jaworski +3 more
semanticscholar +1 more source
Quantitative earthquake-like statistical properties of the flow of soft materials below yield stress. [PDF]
Nat Commun, 2020 The flow behavior of soft materials below the yield stress can be rich and is not fully understood. Here, we report shear-stress-induced reorganization of three-dimensional solid-like soft materials formed by closely packed nematic domains of surfactant ...
Bera PK +4 more
europepmc +2 more sources
Transition between solid and liquid state of yield-stress fluids under purely extensional deformations. [PDF]
Proc Natl Acad Sci U S A, 2020 Significance The stress-induced transition from solid to liquid state is commonly referred to as “yielding.” Yield-stress materials, including pastes, muds, blood, crude oil, and condiments like mayonnaise, have solid-like properties at rest but can be ...
Varchanis S +6 more
europepmc +2 more sources
Sliding flows of yield-stress fluids
Journal of Fluid Mechanics, 2021 A theoretical and numerical study of complex sliding flows of yield-stress fluids is presented. Yield-stress fluids are known to slide over solid surfaces if the tangential stress exceeds the sliding yield stress .
E. Chaparian, O. Tammisola
semanticscholar +1 more source
Yield-stress fluids in porous media: a comparison of viscoplastic and elastoviscoplastic flows. [PDF]
Meccanica, 2020 A numerical and theoretical study of yield-stress fluid flows in two types of model porous media is presented. We focus on viscoplastic and elastoviscoplastic flows to reveal some differences and similarities between these two classes of flows.
Chaparian E +4 more
europepmc +2 more sources
Journal of Rheology, 2019 Normal stresses in complex fluids lead to new flow phenomena because they can be comparable to, or even larger than, the shear stress. In addition, they are of paramount importance for formulating and testing constitutive equations for predicting nonviscometric flow behavior.
De Cagny, Henri +4 more
openaire +3 more sources