*CONDUCTIVITY

Keyword type: model definition, material

This option is used to define the conductivity coefficients of a material. There is one optional parameter TYPE. Default is TYPE=ISO, other values are TYPE=ORTHO for orthotropic materials and TYPE=ANISO for anisotropic materials. All constants may be temperature dependent. The unit of the conductivity coefficients is energy per unit of time per unit of length per unit of temperature.

First line:

• *CONDUCTIVITY
• Enter the TYPE parameter and its values, if needed

Following line for TYPE=ISO:

• $\kappa$.
• Temperature.

Repeat this line if needed to define complete temperature dependence.

Following line for TYPE=ORTHO:

• $\kappa_{11}$.
• $\kappa_{22}$.
• $\kappa_{33}$.
• Temperature.

Repeat this line if needed to define complete temperature dependence.

Following line for TYPE=ANISO:

• $\kappa_{11}$.
• $\kappa_{22}$.
• $\kappa_{33}$.
• $\kappa_{12}$.
• $\kappa_{13}$.
• $\kappa_{23}$.
• Temperature.

Repeat this line if needed to define complete temperature dependence.

Example:

*CONDUCTIVITY
50.,373.
100.,573.

tells you that the conductivity coefficient in a body made of this material is $50$ at $T=373$ and $100$ at $T=573$. Below $T=373$ its value is set to $50$, above $T=573$ it is set to $100$ and in between linear interpolation is applied.

Example files: beamhtbo, oneel20fi.