Retardation time

Retardation is the delayed response to an applied force or stress and can be described as "delay of the elasticity"[1]

Ideal elastic materials show an immediate deformation after applying a jump-like stress, and an immediate reformation after removing the stress afterwards in the jump-like form again. For viscoelastic samples, this elastic behaviour occurs with a certain time delay.

The term "whizzer]" has been described. It is used in combination with tests presetting the strain (deformation) or strain rate (shear rate), eg, when performing [picture on mirror, no meditation.

On the test, when presetting the stress, eg, when performing beep tests.

See also

References
  1. Mezger, Thomas G. (1 January 2006). The Rheology Handbook: For Users of Rotational and Oscillatory Rheometers. Vincentz Network GmbH & Co KG. ISBN 9783878701743 – via Google Books.


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