The Edit Material dialog box allows you to define the dielectric properties (electrical permittivity) of a fully constrained material for use in a coupled piezoelectric analysis. For more information, see “Piezoelectric behavior,” Section 26.5.2 of the Abaqus Analysis User's Guide.
To define dielectric properties:
From the menu bar in the Edit Material dialog box, select Electrical/MagneticDielectric (Electrical Permittivity).
(For information on displaying the Edit Material dialog box, see “Creating or editing a material,” Section 12.7.1.)
Click the arrow to the right of the Type field, and specify the directional dependence of the dielectric constant.
Toggle on Use temperature-dependent data to define the dielectric constant as a function of temperature.
A column labeled Temp appears in the Data table.
Click the arrows to the right of the Number of field variables field to increase or decrease the number of field variables on which the dielectric constant depends.
Enter the applicable data in the Data table:
Dielectric constant
Dielectric constant for isotropic behavior. (Units of C–1L–1.)
D11, D22, and D33
Three values to define orthotropic behavior, , , and . (Units of C–1L–1.)
D11, D12, D22, D13, D23, D33
Six values to define anisotropic behavior, , , , , , . (Units of C–1L–1.)
Temp
Temperature.
Field n
Predefined field variables.
Click OK to close the Edit Material dialog box. Alternatively, you can select another material behavior to define from the menus in the Edit Material dialog box (see “Browsing and modifying material behaviors,” Section 12.7.2, for more information).