SPC OPTION

This function allows the user to create and/or modify the SPC options. The SPC SET dialog window appears as inFigure 5.7.6.

Figure 5.7.6 SPC option

SHOW SPC ON

Toggle SPC ON/OFF to show the current SPC set.

SHOW FORCE ON

Toggle defined force ON/OFF to show the current load force.

1.CREATE SPC SET

  • Select an SPC type. There are seven types of degree of freedom in LS-DYNA:
    1. X-Translation
    2. Y-Translation
    3. Z-Translation
    4. X-Rotation
    5. Y-Rotation
    6. Z-Rotation
    7. All Transformation

    The following menu (Figure 5.7.7) provides the ways to define one or several constraints.

    Figure 5.7.7 SPC types

    • Select CREATE.
    • Enter the SPC Set ID Number in the next window.
    • Select nodes to constrain.

    2.DELETE SPC SET

    • Select an SPC set from the list.
    • Select DELETE.
    • Confirm the deletion in the DYNAFORM QUESTION window (Figure 5.7.8).

    Figure 5.7.8 DYNAFORM Question Window

    3.DEFINE SPC

    • Select a set from the list.
    • Select a type.
    • Select DEFINE.
    • Select nodes. More nodes with the selected degree of freedom will be added to the highlighted SPC set.

    4.RELEASE SPC

    Remove some nodes from the selected SPC set.

    5.CLEAR SPC

    Remove all nodes from a selected SPC set. A DYNAFORM QUESTION window is displayed as in Figure 5.7.9.

    Figure 5.7.9 DYNAFORM Question Window

    Select YES to delete all SPC.

    Select NO to reject the choice.

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