Search Results - subject:"Viscoelastic"

On unilaterally supported viscoelastic von Kármán plates with a long memory

Bock, Igor; Lovíšek, Ján - In: Mathematics and Computers in Simulation (MATCOM) 61 (2003) 3, pp. 399-407

with an inner obstacle of a thin viscoelastic plate made of a long memory material. The corresponding Volterra type …

Persistent link: https://www.econbiz.de/10011050145

Dynamic macroscopic heterogeneities in a flexible linear polymer melt

Collin, D.; Martinoty, P. - In: Physica A: Statistical Mechanics and its Applications 320 (2003) C, pp. 235-248

This article describes shear-experiments on flexible linear polymer melts (polystyrene) with molecular weights (4,000 and 17,500g/mol) lower than that of critical entanglement. The technique used is a shear piezoelectric rheometer, enabling the complex shear-modulus to be measured in a broad...

Persistent link: https://www.econbiz.de/10011059113

Amplitude equation for stationary convection in a binary viscoelastic fluid

Martinez-Mardones, J; Tiemann, R; Walgraef, D - In: Physica A: Statistical Mechanics and its Applications 327 (2003) 1, pp. 29-33

Thermal convection in binary fluids with Oldroyd viscoelastic properties is studied close to threshold. The role of … retardation time, characteristic of viscoelastic fluids, and Soret effect, characteristic of binary fluids, is emphasized. A …

Persistent link: https://www.econbiz.de/10010591538

Vibrations of a beam between stops: numerical simulations and comparison of several numerical schemes

Dumont, Yves - In: Mathematics and Computers in Simulation (MATCOM) 60 (2002) 1, pp. 45-83

We present and compare different schemes used to simulate the vibrations of an elastic beam between two stops. The beam is clamped at one end to a device which may vibrates periodically. The other end is restricted to move between two stops. The contact is modeled by the normal compliance...

Persistent link: https://www.econbiz.de/10010749530

Rayleigh–Bénard convection in binary viscoelastic fluid

Martinez-Mardones, J; Tiemann, R; Walgraef, D - In: Physica A: Statistical Mechanics and its Applications 283 (2000) 1, pp. 233-236

The onset of convection in a binary-viscoelastic Oldroyd-B fluid is investigated. The threshold for oscillatory …

Persistent link: https://www.econbiz.de/10010872384

On large deflections of viscoelastic plates1This work was supported by Grant 1/5094/1998 of the Grant Agency of the Slovak Republic.1

Bock, Igor - In: Mathematics and Computers in Simulation (MATCOM) 50 (1999) 1, pp. 135-143

viscoelastic plates modelled by a nonstationary pseudo-parabolic system in the case of short memory and by a system with a memory …

Persistent link: https://www.econbiz.de/10011050448

Constitutive equations for viscoelastic surface diffusion: Effects of deformation and thermal history

Sagis, Leonard M.C. - In: Physica A: Statistical Mechanics and its Applications 262 (1999) 3, pp. 335-348

, consisting of a mixture of linear viscoelastic components with fading memory. The constitutive equation contains three main …

Persistent link: https://www.econbiz.de/10010599534

Convective and absolute instabilities in viscoelastic fluid convection

Martinez-Mardones, J.; Tiemann, R.; Walgraef, D. - In: Physica A: Statistical Mechanics and its Applications 268 (1999) 1, pp. 14-23

Convection in viscoelastic fluids may be induced by oscillatory or stationary instabilities. When the oscillatory …

Persistent link: https://www.econbiz.de/10010664856

Constitutive equations for surface diffusion in mixtures of viscoelastic surfactants

Sagis, Leonard M.C. - In: Physica A: Statistical Mechanics and its Applications 254 (1998) 3, pp. 377-388

viscoelastic behavior with fading memory. The equation is based on the Maxwell–Stefan theory for diffusion. The constitutive …

Persistent link: https://www.econbiz.de/10010599580