viscoelasticity


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viscoelasticity

[¦vis·kȯ‚i‚las′tis·əd·ē]
(mechanics)
Property of a material which is viscous but which also exhibits certain elastic properties such as the ability to store energy of deformation, and in which the application of a stress gives rise to a strain that approaches its equilibrium value slowly.
References in periodicals archive ?
The prepared adhesive has high and stable tack value (20-30), stable viscosity (80 Pa-s), emulsification rate of 30% to 40%, and appropriate levels of viscoelasticity, thixotropy and ink flow.
* Evaluations: Fine lines and wrinkles by profilometry and expert clinical grading; Firmness by viscoelasticity; Hydration by TEWL or conductance capacitance measurement; clinical photography
In the constitute model of viscoelasticity which is shown in Figure 1(b), E1 and E2 are spring part parameters of elasticity with unit Pa, and [C.sub.1] is dash-port part of the viscous parameter with unit Pa * s.
Although the above studies have attempted to model the nonlinear dynamical behavior of the DE to probe its time-dependent performance, they have neglected the viscoelasticity of DE.
Generally, the efficient thickening and strong viscoelasticity for HAP-CDE polymeric system facilitate injection fluids to improve volumetric sweep efficiency as well as microscopic displacement efficiency.
Viscosity and Viscoelasticity. Dynamic viscosity was measured using a type-E rotational viscometer (Toki Sangyo: TVE-20H).
Note that if the inequality in (A2) is strict (which is the case in many existing papers in viscoelasticity), then there will be no restriction on the size of [R.sub.h].
A new method for solving dynamic problems of fractional derivative viscoelasticity, Internat.
The viscoelasticity of slick-water is the main cause of drag reduction, but the mechanism of viscoelasticity of a polymer remains unclear.
By knowing viscoelasticity materials characteristics, good agreement of estimated results and real behavior of wood products has been reached.
The polymeric interlayer provides the fundamental protection during the impact mainly due to its viscoelasticity [9, 10].
As one piece of equipment is able to handle multiple dynamic and static measurements to characterize viscoelasticity, glass transition, softening.