NonlinearGurson1D
Uniaxial Nonlinear General Gurson Porous Model
Theory
The yield function, hardening rule, flow rule are identical to that of the 3D version. Please check the ** NonlinearGurson** model for details.
The uniaxial version assumes the stress tensor possesses the following voigt form.
\[
\sigma=\begin{bmatrix}\sigma_1&0&0&0&0&0\end{bmatrix},
\]
meaning that the elastic strain \(\varepsilon^e\) is always
\[
\varepsilon^e=\varepsilon_1^e\begin{bmatrix}1&-\nu&-\nu&0&0&0\end{bmatrix},
\]
where \(\nu\) is Poisson's ratio.
Recording
This model supports the following additional history variables to be recorded.
| variable label | physical meaning |
|---|---|
| VF | volume fraction |