Viscoelasticity: Difference between revisions

Revision as of 16:18, 8 June 2023

Revision as of 20:54, 22 November 2023

Line 57:

Viscoelasticity is studied using [[dynamic mechanical analysis]], applying a small oscillatory stress and measuring the resulting strain.

* Purely elastic materials have stress and strain in phase, so that the response of one caused by the other is immediate.

* In purely viscous materials, strain lags stress by a 90 degree phase.

* Viscoelastic materials exhibit behavior somewhere in the middle of these two types of material, exhibiting some lag in strain.