Results 251 to 260 of about 67,617 (297)

Magnetic Relaxation in a Viscoelastic Ferrocolloid

Colloid Journal, 2020
A method has been proposed for calculating linear dynamic magnetization of a viscoelastic ferrocolloid in a constant magnetic field (displacement field). The magnetic phase of the colloid consists of Brownian ferromagnetic nanoparticles placed into a Jeffry’s fluid.
V. V. Rusakov, Yu. L. Raikher
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Viscoelastic relaxation of polydimethylsiloxane liquids

Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1964
The shear mechanical impedance of six polydimethylsiloxane liquids of viscosity grades ranging from 100 to 100000 cS has been measured over the frequency range 10 kc/s to 78 Mc/s, and at temperatures from –50 to +50 °C. It was found possible to reduce the experimental data for each liquid to give a single curve for each component of the mechanical ...
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Slow relaxation of viscoelastic oil modules

Bulletin of the Russian Academy of Sciences: Physics, 2015
The viscoelastic modules of complex organic media evolve slowly. Studying the dependence of a complex shear modulus on strain amplitude reveals logarithmic growth over time of the nonlinearity parameter of a raw oil sample. The linear reduction in the complex shear modulus upon an increase in the amplitude of shear perturbations is confirmed ...
V. V. Grishaev, I. B. Esipov, M. A. Mironov   +2 more
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Further inequalities for viscoelastic relaxation functions

Mechanics Research Communications, 1995
The constitutive equation of a linear viscoelastic solid \(T(t)= G_0 E(t)+ \int^\infty_0 G' (\tau) E(t- \tau) d\tau\) and of a viscoelastic fluid \(T(t)= -p(\rho (t)) 1+\int^\infty_0 {\mathcal G} (\tau) D(t- \tau) d\tau\) are considered. Here \(T\in \text{Sym}\) is the Cauchy stress tensor, \(G_0\in \text{Lin(Sym)}\) is the instantaneous elastic ...
Mauro Fabrizio, MORRO, ANGELO
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Prevention of Stress Relaxation in Viscoelastic Structures

Journal of Structural Engineering, 1992
This paper presents a new problem in linear viscoelastic structural analysis. Homogeneous structures with rigid restraints, where stress relaxation is prevented at a time after loading, are studied. This restriction produces time-dependent increments in the initial displacements.
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Viscoelastic relaxation in liquid mixtures

Proceedings of the Royal Society of London. A. Mathematical and Physical Sciences, 1969
The authors have previously described a model from which the viscoelastic relaxation of supercooled liquids in alternating shear can be predicted. According to this model, the complex compliance of the liquid is represented by the equation J * = 1/ G ∞ [1+1/j ωr
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The Relaxed Work Functional in Linear Viscoelasticity

Mathematics and Mechanics of Solids, 2004
The relaxed work from a history H' to a history H is defined as the minimum work required to approach H via a sequence of continuations of H'. I prove three basic properties of the relaxed work: subadditivity, lower semicontinuity with respect to H for fixed H', and two dissipation inequalities.
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Viscoelastic relaxation in oriented semicrystalline polymers

Polymer, 1991
Abstract This paper presents a theoretical and experimental investigation of the basic mechanism controlling viscoelastic relaxation in oriented semicrystalline poly(ethylene terephthalate) (PET). We have analysed the anisotropic elastic moduli, creep behaviour and structural relaxation. The master creep curves and shift factors are constructed.
T.S. Chow, A.C. Van Laeken
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Viscoelastic relaxation functions compatible with thermodynamics

Journal of Elasticity, 1988
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Mauro Fabrizio, MORRO, ANGELO
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Fractional-order relaxation laws in non-linear viscoelasticity

Continuum Mechanics and Thermodynamics, 2007
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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