Dynamic mechanical analysis: Difference between revisions

Revision as of 16:17, 18 October 2019

Revision as of 13:14, 7 November 2019

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:<math> \frac{\sigma(t)}{\gamma(t)}=\underbrace{\frac{\sigma_0}{\gamma_0} \cdot \cos(\Delta \varphi)}_{G'}\cdot \sin (\omega \cdot t)+ \underbrace{\frac{\sigma_0}{\gamma_0} \cdot \sin(\Delta \varphi)}_{G''} \cdot \cos (\omega \cdot t)

\,</math>.

Comparison of the two <math>\frac{\sigma(t)}{\gamma(t)}</math> equations lead to the definition of <math>G'</math> and <math>G''</math>.<ref name="Ferry">{{cite journalbook|last=Ferry|first=J.D.|author2 = Myers, Henry S |year=1961|title=Viscoelastic properties of polymers|journalpublisher=The Electrochemical Society |volume=108 }}</ref>

==Applications==