SPC OPTION
This function allows the user to create and/or modify the SPC options. The SPC SET dialog window appears as in Figure 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.
CREATE SPC SET
Select an SPC type. There are seven types of degree of freedom in LS-DYNA:
X-Translation
Y-Translation
Z-Translation
X-Rotation
Y-Rotation
Z-Rotation
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.
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
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.
RELEASE SPC
Remove some nodes from the selected SPC set.
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.