Sunday, 30 September 2012

Constitutive equation

Constitutive equation is an equation that describes the mechanical behavior of particular material

Linear viscoelastic model can be represented by Volterra equation connecting stress & strain
\epsilon(t)= \frac { \sigma(t) }{ E_\text{inst,creep} }+ \int_0^t K(t-t^\prime) \dot{\sigma}(t^\prime) d t^\prime [Wikipedia]
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