20.2.5 Defining heat capacitance

You can define concentrated heat capacitance at a point on a part or on an assembly. For more information, see Point capacitance, Section 16.4.1 of the ABAQUS Analysis User's Manual.

To define heat capacitance:

  1. From the main menu bar in the Property module or the Interaction module, select SpecialInertiaCreate.

  2. In the Create Inertia dialog box that appears, name the inertia, select Heat capacitance, and click Continue.

  3. Select the points for which you want to define heat capacitance using one of the following methods:

    • Select the points in the viewport. When you have finished selecting, click mouse button 2.

      If the model contains a combination of orphan mesh instances and native part instances, select one of the following from the prompt area:

      • Select Geometry to define heat capacitance for a native part instance or for a reference point.

      • Select Mesh to define heat capacitance for an orphan mesh instance.

        You can use the angle method to select a group of nodes from an orphan mesh part instance. For more information, see Using the angle method to select multiple objects, Section 6.2.3.

    • To select from a list of existing sets, do the following:

      1. Click Sets on the right side of the prompt area to display the Region Selection dialog box containing a list of available sets.

      2. Select the set of interest, and click Continue.

        Note:  The default selection method is based on the selection method you most recently employed. To revert to the other method, click Select in Viewport or Sets on the right side of the prompt area.

    The Edit Inertia dialog box appears. The region to which you are applying the heat capacitance is highlighted in the viewport.

  4. If desired, toggle on Use temperature-dependent data and enter the temperature.

  5. If desired, specify the Number of field variables and enter the value for the first field variable, the value of the second field variable, etc.

  6. In the Data table, enter the following:

    Capacitance

    Enter the capacitance magnitude, (density × specific heat × volume).

  7. Click OK to save your data and to close the dialog box.

    Symbols appear in the viewport that represent the heat capacitance that you just created.


For information on related topics, click any of the following items: