The Inner Panel page is illustrated in Figure 8.6.6. The user needs to select the type of inner panel first, and then define Part, Material, Thickness, Property, Contact, etc.

Figure 8.6.6  Inner panel

Option

There are three types of inner panel: As rigid, As deformable, Non-active. If there is no inner panel in the model, the user may select Non-active. If there is inner panel, the user may select As rigid or As deformable. The former one could save more computing time.

Note: Different options have different content to be defined.

GEOMETRY

Part

The user may select Part to define inner panel. By clicking the Define geometry button, the program will pop up the tool preparation page.

Material

The program will automatically define a default #36 material for the inner panel. The user may click the BLANKMAT button to enter into the Material definition interface to modify or create a material.

Thickness

The user may define thickness for the inner panel. The default thickness is 1mm.

Property

Property contains the selection of element formulation, number of integration points in thickness direction and shear correction factor. Generally, the user does not need to modify it.

Contact

The user may define the type and parameters of contact between inner panel and outer panel. The default contact type is AUTOMATIC_SURFACE_TO_SURFACE, and the default friction coefficient is 0.125.

Constraint

If the type of inner panel is As deformable, the user may define SPCs. The method is the same with the one for outer panel.

Nodal forces

If the type of inner panel is As deformable, the user may apply force on the nodes of inner panel. Click the Edit button to display the Nodal forces dialog box illustrated in Figure 8.6.7. In the nodal forces list, FC indicates constant force, and FV indicates variable force.

Figure 8.6.7  Nodal forces

Force: Applies FC or FV on the selected nodes.

Direction: The user may define the direction of force. The default direction is +W.

New: Selects nodes to apply nodal force.

Modify: Modifies the force and direction of the selected node.

Delete: Deletes the nodal force of the selected node.

Delete All: Deletes all the defined nodal forces.

OK: Accepts the defined nodal forces and exit.

Cancel: Cancels the operations and exit.

Control

If the type of inner panel is As rigid, the user may define the control parameters of the inner panel, as illustrated in Figure 8.6.8. There are two control methods. The default control parameter is Stationary, which means the inner panel remains stationary. The other method is Force, which is to apply force along a direction and the default direction is -W.

Figure 8.6.8  Control parameter