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I’m trying to learn creep analysis in Ansys, and am currently working on deriving creep constants, specifically C1, C2, and C3 for the Norton Power Law.

I understand that the equation is usually shown in 2 ways:

$$\dot\epsilon = A \sigma^n t^m$$

or

$$\dot\epsilon = A \sigma^n \exp\left(-\dfrac{Q}{RT}\right)$$

Which form does Ansys use? I can’t seem to find an answer in any of the manuals or anywhere online.

For example, I know solid works uses the first form, where $C_1 = A$, $C_2 = n$, and $C_3 = m$.

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According to http://www2.me.rochester.edu/courses/ME204/nx_help/index.html#uid:id1212733 it uses creep strain = $A \sigma^n t^m$ where $A$ = C1, $n$ = C2, $m$ = C3.

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