Results 31 to 40 of about 82,038 (316)
Holographic viscoelastic hydrodynamics [PDF]
Journal of High Energy Physics, 2019 Abstract Relativistic fluid hydrodynamics, organized as an effective field theory in the velocity gradients, has zero radius of convergence due to the presence of non-hydrodynamic excitations. Likewise, the theory of elasticity of brittle solids, organized as an effective field theory in the strain gradients, has zero radius of ...
Alex Buchel +2 more
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Microswimming in viscoelastic fluids
Journal of Non-Newtonian Fluid Mechanics, 2021 The locomotion of microorganisms and spermatozoa in complex viscoelastic fluids is of critical importance in many biological processes such as fertilization, infection, and biofilm formation. Depending on their propulsion mechanisms, microswimmers display various responses to a complex fluid environment: increasing or decreasing their swimming speed ...
Li, Gaojin +2 more
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Dynamics of viscoelastic membranes [PDF]
Physical Review E, 2002 We determine both the in-plane and out-of-plane dynamics of viscoelastic membranes separating two viscous fluids in order to understand microrheological studies of such membranes. We demonstrate the general viscoelastic signatures in the dynamics of shear, bending, and compression modes.
Fred C. MacKintosh +3 more
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Linear waves at viscoelastic interfaces between viscoelastic media
Physical Review Fluids, 2022 We derive the general dispersion relation for interfacial waves along a planar viscoelastic boundary that separates two viscoelastic bulk media, including the effect of gravity. Our unified theory contains Rayleigh waves, capillary-gravity-flexural waves, Lucassen waves, bending waves in elastic plates, and the standard dispersion-free sound waves, as ...
Zendehroud, Sina +2 more
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Active matter in a viscoelastic environment [PDF]
Physical Review Fluids 5, 023102 (2020), 2020 Active matter systems such as eukaryotic cells and bacteria continuously transform chemical energy to motion. Hence living systems exert active stresses on the complex environments in which they reside. One recurring aspect of this complexity is the viscoelasticity of the medium surrounding living systems: bacteria secrete their own viscoelastic ...
arxiv +1 more source
On opening crack propagation in viscoelastic solids [PDF]
arXiv, 2021 We show that the Persson-Brener theory of crack propagation in viscoelastic solids gives a viscoelastic fracture energy factor $G/G_0 = 1+f$ which is nearly the same as the viscoelastic factor obtained using the cohesive-zone model. We also discuss finite-size effects and comment on the use of crack propagation theories for "solids" with a viscoelastic
arxiv
Micromachines, 2020 Blood flows in microcirculation are determined by the mechanical properties of blood samples, which have been used to screen the status or progress of diseases.
Yang Jun Kang
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Photo-induced viscoelasticity in cytocompatible hydrogel substrates
New Journal of Physics, 2019 Human mesenchymal stem cells (hMSCs) sense and respond to the bulk elastic and viscoelastic properties of their microenvironment, as well as the spatial distribution of these mechanical signals.
Ian A Marozas +2 more
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Acoustic interaction force between two particles immersed in a viscoelastic fluid [PDF]
, 2022 The interaction acoustic radiation force in a standing plane wave applied to each small solid sphere in a two-particle system immersed in a viscoelastic fluid is studied in a framework based on perturbation theory. In this work, the first- and second-order perturbation theories are used in the governing equations with considering the upper-convected ...
arxiv +1 more source
Viscoelastic properties of crystals [PDF]
The Journal of Chemical Physics, 2009 We examine the question of whether fluids and crystals are differentiated on the basis of their zero frequency shear moduli or their limiting zero frequency shear viscosity. We show that while fluids, in contrast with crystals, do have a zero value for their shear modulus, in contradiction to a widespread presumption, a crystal does not have an ...
Williams, Stephen R., Evans, Denis J.
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