Electrical: Electric Conductivity

The electric conductivity material definition:

  • can be isotropic, orthotropic, or fully anisotropic;
  • can be linear or nonlinear (by defining it as a function of temperature); and
  • can be specified as a function of frequency.

This page discusses:

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Electrical Conductivity

Isotropic

Input Data Description
Electrical conductivity Isotropic electrical conductivity, σ . When specified, the material exhibits no directional dependency for electrical conductivity.
Use frequency-dependent data Specify material parameters that depend on frequency (cycles/time). A Frequency field appears in the data table.
Use temperature-dependent data Specify material parameters that depend on temperature. A Temperature field appears in the data table.
Number of field variables Specifies material parameters that depend on one or more independent field variables. A Field column appears in the data table. For more information, see Specifying Material Data as a Function of Temperature and Independent Field Variables.

Orthotropic

Input Data Description
K1, K2, and K3 When orthotropic electrical conductivity is specified, the material exhibits directional dependency only in the principal directions. The three values of electric conductivity are σ 11 , σ 22 , and σ 33 .
Use frequency-dependent data Specify material parameters that depend on frequency (cycles/time). A Frequency field appears in the data table.
Use temperature-dependent data Specify material parameters that depend on temperature. A Temperature field appears in the data table.
Number of field variables Specifies material parameters that depend on one or more independent field variables. A Field column appears in the data table. For more information, see Specifying Material Data as a Function of Temperature and Independent Field Variables.

Anisotropic

Input Data Description

K11, K12, K13

K22, K23, K33

When anisotropic electric conductivity is specified, the material exhibits full directional dependency. Specify the symmetric part of the tensor in the order: σ 11 , σ 12 , σ 22 , σ 13 , σ 23 , and σ 33 .
Use frequency-dependent data Specify material parameters that depend on frequency (cycles/time). A Frequency field appears in the data table.
Use temperature-dependent data Specify material parameters that depend on temperature. A Temperature field appears in the data table.
Number of field variables Specifies material parameters that depend on one or more independent field variables. A Field column appears in the data table. For more information, see Specifying Material Data as a Function of Temperature and Independent Field Variables.