Strain as a function of time due to constant stress over an extended period for a viscoelastic material. The three stages of material creep behavior - primary, secondary, tertiary.
<a href="//commons.wikimedia.org/wiki/User:Strafpeloton2" class="mw-redirect" title="User:Strafpeloton2">Strafpeloton2</a>
2009-10-19
<span class="int-own-work" lang="en">Own work</span>