You can create a connector derived component to specify the friction-generating normal force in connectors as a complex combination of connector forces and moments or to use as an intermediate result in a connector potential function. For more information on connector derived components, see “Connector functions for coupled behavior,” Section 25.2.4 of the ABAQUS Analysis User's Manual.
To display context-sensitive help for options in the derived component editor or the Edit Derived Component Term dialog box, you must select the option of interest and then press [F1]. (The Help menu in the main menu bar is unavailable while the editor and dialog box are displayed.)
To create or edit a connector derived component:
To display the connector derived component editor, click Edit from the connector section editor when you are defining a user-defined friction model or from potential contribution editors. For more information, see “Specifying predefined friction parameters or contact forces,” Section 15.15.5, and “Specifying potential terms,” Section 15.15.15.
In the Edit Derived Component dialog box you can add, edit, and delete derived component terms as follows:
Adding terms
Click Add to display the Edit Derived Component Term dialog box.
Modifying terms
In the Derived Component Terms list, select the term whose data you want to change, and click Edit to display the Edit Derived Component Term dialog box.
Deleting terms
In the Derived Component Terms list, select the terms that you want to delete, and click Delete.
In the Edit Derived Component Term dialog box, do the following:
Select a Term operator to specify the method used to compute the derived component term.
Square root of sum of squares
ABAQUS computes the derived component term as the square root of the sum of the squares of each intrinsic component contribution.
Sum
ABAQUS computes the derived component term as the direct sum of the intrinsic component contributions.
Choose the Overall term sign.
Positive
Select a positive sign for the derived component term.
Negative
Select a negative sign for the derived component term.
Choose the intrinsic components to be used in the definition of the derived component, and enter the scaling factor (
) for each component in the data table.
If desired, toggle on Use local directions, choose Independent position components or Independent constitutive motion components, and select the available components of relative position or constitutive motion to be used as independent variables in the definition of the connector derived component. Enter the connector relative position or constitutive motion in the direction specified by the independent component in the corresponding field of the table. For more information, see “Defining nonlinear connector behavior properties to depend on relative positions or constitutive displacements/rotations” in “Connector behavior,” Section 25.2.1 of the ABAQUS Analysis User's Manual.
If desired, toggle on Use temperature-dependent data to define data that vary with temperature. A column labeled Temp appears in the data table.
If desired, click the arrows to the right of the Number of field variables field to increase or decrease the number of field variables to define data that depend on field variables. Field variable columns appear in the data table.
Click OK to save the data and to exit the editor.
