Results 21 to 30 of about 8,782 (261)

Nonlinearly Viscoelastic Response of Glassy Polymers [PDF]

, 2002
This thesis consists of three chapters. After a brief introduction on the general aspects of polymer characterization and viscoelasticity in the first chapter, all major features of this research project are described in the following two chapters ...
Zhu, Weidong
core   +1 more source

Fractional viscoelastic models for the estimation of the frequency response of rubber bushings based on relaxation tests

Results in Engineering, 2023
Estimation of the viscoelastic properties of rubber bushings at very high frequencies (up to 2 kHz) is a challenge for many damping component manufacturers in the design stage of a quality monitoring procedure.
Jose Calaf-Chica, Víctor Cea-González, María-José García-Tárrago, Francisco-Javier Gómez-Gil   +3 more
doaj   +1 more source

Investigation of Relaxation Time on Viscoelastic Two-Dimensional Flow Characteristics Using FreeFem++

Journal of Mathematics, 2022
Viscoelastic fluid flow models have shown promising scope in modeling the behavior of many industrial materials such as polymeric materials, microfluidics, biological liquids, gels, plastic melts, and geomaterials.
Muhammad Sabeel Khan, M. Asif Memon, Ebenezer Bonyah   +2 more
doaj   +1 more source

New bonded assembly configuration for dynamic mechanical analysis of adhesives [PDF]

, 2013
A new sample configuration has been developed in order to study molecular mobility of an adhesive in a bonded assembly configuration by dynamic mechanical analysis.
Tonon, Claire, Chevalier, Mathieu, Combes, Hélène, Dantras, Eric, Lacabanne, Colette, Quiroga Cortes, Luis, Guigue, Pascale, Caussé, Nicolas   +7 more
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Mathematical Models Describing the Creep and Stress Relaxation Behavior of False Banana’s Fiber (Ensete Ventricosum)

Journal of Natural Fibers, 2021
Viscoelastic behavior is an important parameter for the use of natural fibers in technical applications. Mathematical models to describe the relaxation and creep behavior of Ensete fibers were investigated.
Č. Mizera, D. Herák, P. Hrabě, A. Kabutey   +3 more
doaj   +1 more source

Bubble growth in a two-dimensional viscoelastic foam [PDF]

, 2006
The effects of viscoelasticity on the expansion of gas bubbles arranged in a hexagonal array in a polymeric fluid are investigated. The expansion is driven by the diffusion of a soluble gas from the liquid phase, and the rate of expansion is controlled ...
Harlen, OG, Wilson, HJ, Everitt, SL
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Complex interplay between stress perturbations and viscoelastic relaxation in a two-asperity fault model [PDF]

Nonlinear Processes in Geophysics, 2018
We consider a plane fault with two asperities embedded in a shear zone, subject to a uniform strain rate owing to tectonic loading. After an earthquake, the static stress field is relaxed by viscoelastic deformation in the asthenosphere.
E. Lorenzano, M. Dragoni
doaj   +1 more source

Research on Material Viscoelasticity and Its Influence on Indentation Rolling Resistance

Applied Sciences
Viscoelastic materials are applied in several fields, and their relaxation characteristics are intricately related to the failure mechanism of sealing components and the generation of indentation rolling resistance in belt conveyors.
Lunlun Wan, Fuyan Lin
doaj   +1 more source

Investigating the stability of viscoelastic stagnation flows in T-shaped microchannels [PDF]

, 2009
We investigate the stability of steady planar stagnation flows of a dilute polyethylene oxide (PEO) solution using T-shaped microchannels. The precise flow rate control and well-defined geometries achievable with microfluidic fabrication technologies ...
Sousa, P.C., Oliveira, Monica S. N., P. C. Sousa B, M.S.N. Oliveira, M.A. Alves, Oliveira, Monica, Alves, M.A., J. Soulages A, McKinley, G.H., G. H. Mckinley A, Soulage, Johannes, Alves, Manuel A., M. S. N. Oliveira B, McKinley, Gareth H., J. Soulages, M. A. Alves B, G.H. McKinley, Soulages, J., P.C. Sousa, Sousa, P. C.   +19 more
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The role of relaxation and retardation phenomenon of Oldroyd-B fluid flow through Stehfest’s and Tzou’s algorithms

Nonlinear Engineering, 2022
Delayed response (delay of the elasticity) and time needed for initial stress can lead to relaxation and retardation phenomenon; this is because of the consistent behavior of viscoelastic fluid on thermodynamic principles.
Awan Aziz Ullah, Riaz Samia, Abro Kashif Ali, Siddiqa Ayesha, Ali Qasim   +4 more
doaj   +1 more source