ABSTRACT

Frequency affects can be studied in various ways of changing the frequency: scanning or sweeping across a frequency range, applying a selection of frequencies to a sample, applying a complex wave form to the sample and solving its resultant strain wave, or by free resonance techniques (Figure 8.1). Special techniques are also used to obtain collections of frequency data as a function of temperature for developing master curves and for studying the effect of frequency on temperature-driven changes in the material.