Results 21 to 30 of about 188 (55)

A generalization of the Becker model in linear viscoelasticity: Creep, relaxation and internal friction

open access: yes, 2018
We present a new rheological model depending on a real parameter $\nu \in [0,1]$ that reduces to the Maxwell body for $\nu=0$ and to the Becker body for $\nu=1$.
Mainardi, Francesco   +2 more
core   +1 more source

Development of three dimensional constitutive theories based on lower dimensional experimental data [PDF]

open access: yes, 2009
Most three dimensional constitutive relations that have been developed to describe the behavior of bodies are correlated against one dimensional and two dimensional experiments.
A. E. Green   +18 more
core   +3 more sources

A generalization of the Lomnitz logarithmic creep law via Hadamard fractional calculus

open access: yes, 2017
We present a new approach based on linear integro-differential operators with logarithmic kernel related to the Hadamard fractional calculus in order to generalize, by a parameter $\nu \in (0,1]$, the logarithmic creep law known in rheology as Lomnitz ...
Garra, Roberto   +2 more
core   +1 more source

Invariant Measures for Dissipative Dynamical Systems: Abstract Results and Applications [PDF]

open access: yes, 2012
In this work we study certain invariant measures that can be associated to the time averaged observation of a broad class of dissipative semigroups via the notion of a generalized Banach limit.
Chekroun, Micka ël D.   +1 more
core   +1 more source

On Maxwell fluid with relaxation time and viscosity depending on the pressure

open access: yes, 2010
We study a variant of the well known Maxwell model for viscoelastic fluids, namely we consider the Maxwell fluid with viscosity and relaxation time depending on the pressure.
Amos   +27 more
core   +1 more source

Mathematical existence results for the Doi-Edwards polymer model [PDF]

open access: yes, 2015
In this paper, we present some mathematical results on the Doi-Edwards model describing the dynamics of flexible polymers in melts and concentrated solutions.
Chupin, Laurent
core   +3 more sources

The fully-implicit log-conformation formulation and its application to three-dimensional flows

open access: yes, 2015
The stable and efficient numerical simulation of viscoelastic flows has been a constant struggle due to the High Weissenberg Number Problem. While the stability for macroscopic descriptions could be greatly enhanced by the log-conformation method as ...
Knechtges, Philipp
core   +1 more source

Numerical analysis of a stabilized finite element approximation for the three-field linearized viscoelastic fluid problem using arbitrary interpolations [PDF]

open access: yes, 2016
The original publication is available at www.esaimm2an.org.In this paper we present the numerical analysis of a three-field stabilized finite element formulation recently proposed to approximate viscoelastic flows. The three-field viscoelastic fluid flow
Castillo del Barrio, Ernesto   +1 more
core   +3 more sources

Incompressible limit for the compressible viscoelastic fluids in critical space

open access: yesAdvances in Nonlinear Analysis
In this article, we consider the incompressible limit of global-in-time strong solutions with arbitrary large initial velocity for the compressible viscoelastic fluids in the sense of critical Besov framework. We decouple our compressible system into two
Han Bin, Wu Dan
doaj   +1 more source

Two shallow-water type models for viscoelastic flows from kinetic theory for polymers solutions [PDF]

open access: yes, 2013
In this work, depending on the relation between the Deborah, the Reynolds and the aspect ratio numbers, we formally derived shallow-water type systems starting from a micro-macro description for non-Newtonian fluids in a thin domain governed by an ...
Bresch, Didier, Narbona Reina, Gladys
core   +1 more source

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