Results 71 to 80 of about 49,297 (191)

STRUCTURE AND DYNAMICS OF IRREGULAR MULTIARM STAR POLYMERS

Condensed Matter Physics, 2002
Melt properties of highly branched star polymers consisting of a 1,2-polybutadiene core and nearly 270 arms of 1,4-polybutadiene with varying sizes have been investigated using small angle X-ray scattering (SAXS) and dynamic rheological measurements in ...
D.Vlassopoulos, T.Pakula, J.Roovers
doaj   +1 more source

Linear viscoelasticity of human sclera and posterior ocular tissues during tensile creep. [PDF]

J Biomech, 2023
Song D, Lim S, Park J, Demer JL.
europepmc   +1 more source

Hadamard well-posedness for a hyperbolic equation of viscoelasticity with supercritical sources and damping

, 2013
Presented here is a study of a viscoelastic wave equation with supercritical source and damping terms. We employ the theory of monotone operators and nonlinear semigroups, combined with energy methods to establish the existence of a unique local weak ...
Guo, Yanqiu, Rammaha, Mohammad A., Sakuntasathien, Sawanya, Titi, Edriss S., Toundykov, Daniel   +4 more
core   +1 more source

Milligram Size Rheology of Molten Polymers

Fluids, 2019
During laboratory practice, it is often necessary to perform rheological measurements with small specimens, mainly due to the limited availability of the investigated systems.
Salvatore Costanzo, Rossana Pasquino, Jörg Läuger, Nino Grizzuti   +3 more
doaj   +1 more source

Interplay between viscosity and elasticity in freely expanding liquid sheets

, 2016
We investigate the dynamics of freely expanding liquid sheets prepared with fluids with different rheological properties, (i) viscous fluids with a zero-shear viscosity $\eta_0$ in the range $(1-1000) \, \mathrm{mPa.s}$ and (ii) viscoelastic Maxwell ...
Arora, Srishti, Ligoure, Christian, Ramos, Laurence   +2 more
core   +3 more sources

Modeling Viscoelastic Behavior of HDPE Pipes Subjected to a Diametral Load Using the Standard Linear Solid Model

Modelling
This paper presents the study of the viscoelastic behavior of high-density polyethylene (HDPE) ASTM 4710 pipes under diametral loads. The experimental procedure consists of applying a displacement ramp followed by a stress relaxation stage on six ring ...
David Paniagua-Lovera, Rafael B. Carmona-Paredes, Eduardo A. Rodal-Canales   +2 more
doaj   +1 more source

Characterization of Asphalt Mixes Behaviour from Dynamic Tests and Comparison with Conventional Cyclic Tension–Compression Tests

Applied Sciences, 2018
In the presented research, conventional cyclic tension⁻compression tests and dynamic tests were performed on two types of asphalt mixes (AM). For the tension⁻compression tests, the complex modulus was obtained from the measurements of the ...
Jean-Claude Carret, Hervé Di Benedetto, Cédric Sauzéat   +2 more
doaj   +1 more source

Effect of Dynamically Arrested Domains on the Phase Behavior, Linear Viscoelasticity and Microstructure of Hyaluronic Acid - Chitosan Complex Coacervates. [PDF]

Macromolecules, 2023
Es Sayed J, Caïto C, Arunachalam A, Amirsadeghi A, van Westerveld L, Maret D, Mohamed Yunus RA, Calicchia E, Dittberner O, Portale G, Parisi D, Kamperman M.   +11 more
europepmc   +1 more source

Constituent-based quasi-linear viscoelasticity: a revised quasi-linear modelling framework to capture nonlinear viscoelasticity in arteries. [PDF]

Biomech Model Mechanobiol, 2023
Giudici A, van der Laan KWF, van der Bruggen MM, Parikh S, Berends E, Foulquier S, Delhaas T, Reesink KD, Spronck B.   +8 more
europepmc   +1 more source

A variant of the energy method: an application to the Benard problem for a viscoelastic rotating fluid

Atti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, 2019
In a previous paper of the second author the nonlinear Lyapunov stability of the thermodiffusive equilibrium of a viscoelastic rotating Walters fluid, in a horizontal rotating layer heated and salted from below was studied.
Arcangelo Labianca, Lidia Palese
doaj   +1 more source