Viscosity of the Elastic Aftereffect

The analysis of the elastic aftereffect also requires that a particular model be introduced. Let us first examine the first stage of the elastic aftereffect the fast elastic strain related to the appearance of the viscosity, tif (10 -10 )q , where q is the viseosity of water. 

FIGURE 3.34 Shear deformations in idealized (a and b) and real (c and d) spatial coagulation structures. (From Shchukin, E.D. and Rehbinder, P.A., Kolloidnyi Zh., 33, 450, 1971.) 

If the shear e occurs over a time t with the average rate of de/dt = e/t, the estimate for the work of the viscous forces per unit volume is q de/dt e= qe /t, and for a cell with a volume on the order of about P, it is 

Physical-Chemical Mechanics of Disperse Systems and Materials 

Since we have shown that Wf tifC F/f, the effective viscosity of the fast elastic deformation is 

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