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 theNonlinearGurson model for details.

See also the corresponding section in Constitutive Modelling Cookbook.

The uniaxial version assumes the stress tensor possesses the following voigt form.

σ=[σ100000],\sigma=\begin{bmatrix}\sigma_1&0&0&0&0&0\end{bmatrix},

meaning that the elastic strain εe\varepsilon^e is always

εe=ε1e[1νν000],\varepsilon^e=\varepsilon_1^e\begin{bmatrix}1&-\nu&-\nu&0&0&0\end{bmatrix},

where uu is Poisson's ratio.

Recording

This model supports the following additional history variables to be recorded.

variable label
physical meaning

VF

volume fraction

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