Including volumetric heat generation in heat transfer analyses

User subroutine HETVAL allows you to define a heat flux due to internal heat generation for heat transfer, coupled thermal-electric, or coupled temperature-displacement analyses.

Context:

Abaqus/Standard calls user subroutine HETVAL at each point for which the material definition includes a reference to the user subroutine. For more information, see HETVAL.

  1. From the menu bar in the Edit Material dialog box, select ThermalHeat Generation.

    (For information on displaying the Edit Material dialog box, see Creating or editing a material.)

  2. 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, for more information).

  3. Enter the Job module and display the job editor for the analysis job of interest. (For more information, see Creating, editing, and manipulating jobs.)

  4. In the job editor, click the General tab, and specify the file containing the user subroutine HETVAL. For more information, see Specifying general job settings.

    Note:

    You can specify only one user subroutine file in the job editor; if your analysis involves more than one user subroutine, you must combine the user subroutines into one file and then specify that file.