relaxation-Malkin-distortion¶
Module: solid
Category: materialprop
Type string: "relaxation-Malkin-distortion"
Parameters¶
| Name | Description | Default | Range | Units |
|---|---|---|---|---|
t1c0 |
constant for tau1 | 0 | \(\gt 0\) | t |
t1c1 |
coefficient for tau1 | 0 | \(\in \mathbb{R}\) | t |
t1s0 |
strain for tau1 | 1 | \(\gt 0\) | |
t2c0 |
constant for tau2 | 0 | \(\gt 0\) | t |
t2c1 |
coefficient for tau2 | 0 | \(\in \mathbb{R}\) | t |
t2s0 |
strain for tau2 | 1 | \(\gt 0\) | |
beta |
power exponent beta | 1 | \(\gt 0\) |
Description¶
See Section relaxation-malkin for the description of this relaxation function. When the material parameters vary with the distortional strain \(K_{2}\) according to
\[
\begin{aligned}\tau_{1}\left(K_{2}\right) & =\tau_{10}+\tau_{11}\exp\left(-\frac{K_{2}}{s_{1}}\right)\\
\tau_{2}\left(K_{2}\right) & =\tau_{20}+\tau_{21}\exp\left(-\frac{K_{2}}{s_{2}}\right)
\end{aligned}
\]
The material type is relaxation-Malkin-distortion.
The definition of \(K_{2}\) is given in relaxation-exp-dist-user and examples of how to specify these functions can be found there as well.