ABSTRACT
There are a great number of techniques for the experimental determination of viscoelastic functions. The techniques most frequently found in the lit erature are devoted to measuring the relaxation modulus, the creep compli ance function, and the components of the complex modulus in either shear, elongational, or flexural mode (l-4). Although the relaxation modulus and creep compliance functions are defined in the time domain, whereas the complex viscoelastic functions are given in the frequency domain, it is pos sible, in principle, by using Fourier transform, to pass from the time domain to the frequency domain, or vice versa, as discussed earlier.
