Electrical Conductivity

Directional Dependence of Electrical Conductivity

Isotropic, orthotropic, or fully anisotropic electrical conductivity can be defined. For non-isotropic conductivity a local orientation for the material directions must be specified (Orientations).

Isotropic Electrical Conductivity

For isotropic electrical conductivity only one value of electrical conductivity is needed at each temperature and field variable value. Isotropic electrical conductivity is the default.

Orthotropic Electrical Conductivity

For orthotropic electrical conductivity three values of electrical conductivity ( $σ_{11}^{E}$ , $σ_{22}^{E}$ , $σ_{33}^{E}$ ) are needed at each temperature and field variable value.

Anisotropic Electrical Conductivity

For fully anisotropic electrical conductivity six values ( $σ_{11}^{E}$ , $σ_{12}^{E}$ , $σ_{22}^{E}$ , $σ_{13}^{E}$ , $σ_{23}^{E}$ , $σ_{33}^{E}$ ) are needed at each temperature and field variable value.

Frequency-Dependent Electrical Conductivity

Electrical conductivity can be defined as a function of frequency in an eddy current analysis.

Elements

Electrical conductivity is active only in coupled thermal-electrical elements, coupled thermal-electrical-structural elements, and electromagnetic elements (see Choosing the Appropriate Element for an Analysis Type).