Results 11 to 20 of about 186 (62)

A universal constitutive model for the interfacial layer between a polymer melt and a solid wall [PDF]

open access: yes, 2003
In a preceeding report we derived the evolution equation for the bond vector probability distribution function (BVPDF) of tethered molecules. It describes the behavior of polymer molecules attached to a solid wall interacting with an adjacent flowing ...
Molenaar, J.   +2 more
core   +10 more sources

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

Global Solution to the Three-Dimensional Incompressible Flow of Liquid Crystals [PDF]

open access: yes, 2009
The equations for the three-dimensional incompressible flow of liquid crystals are considered in a smooth bounded domain. The existence and uniqueness of the global strong solution with small initial data are established.
B. Desjardins   +18 more
core   +1 more source

Calculation of β-decay rates in a relativistic model with momentum-dependent self-energies [PDF]

open access: yes, 2007
The relativistic proton-neutron quasiparticle random phase approximation (PN-RQRPA) is applied in the calculation of β-decay half-lives of neutron-rich nuclei in the Z≈28 and Z≈50 regions.
Marketin, Tomislav   +2 more
core   +4 more sources

Existence, a priori and a posteriori error estimates for a nonlinear three-field problem arising from Oldroyd-B viscoelastic flows [PDF]

open access: yes, 2001
In this paper, a nonlinear problem corresponding to a simplified Oldroyd-B model without convective terms is considered. Assuming the domain to be a convex polygon, existence of a solution is proved for small relaxation times.
Picasso, Marco, Rappaz, Jacques
core   +1 more source

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

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

Strong stability of 2D viscoelastic Poiseuille-type flows [PDF]

open access: yes, 2014
We investigate Lp stability issues of small viscoelastic Poiseuilletype ows in two dimensions stemming from a model considered in Fang- Hua Lin, Chun Liu, and Ping Zhang (2005).
Giga, Y., Sauer, J., Schade, K.
core   +1 more source

Elastic director vibrations in nematic liquid crystals [PDF]

open access: yes, 2014
Recently Biscari, DiCarlo and Turzi [Anisotropic wave propagation in nematic liquid crystals, Soft Matter 10, 8296-8307.] proposed a theory for nematoacustics which models nematic liquid crystals as nematic elastomers with molecular relaxation.
Turzi, STEFANO SIMONE
core   +3 more sources

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

Home - About - Disclaimer - Privacy