•
|
Add Contact Pair nodes under Definitions. A contact pair consists of two sets of boundaries, which are called the source and destination boundaries. Contact pairs can also be added automatically, based on boundary adjacency. The gap distance is a property of the contact pair.
|
•
|
In the finalization step of the geometry sequence, you should normally have Action set to Form an assembly. If Form a union is used, then the contacting boundaries must be geometrically separated in the initial configuration.
|
•
|
Add Contact nodes in the physics interface. In the Contact node, you select the contact pairs to be used, and provide the settings for the physical and numerical properties of the contact model.
|
•
|
|
Because of the multiphysics capabilities, the setup of a contact problem is split into two parts. The definition of the contact pair (essentially its geometry) is made under Definitions, and can be shared between several physics interfaces. The physics related definitions of the contact properties are then made in the respective physics interfaces.
|
•
|
When using the Shell, Layered Shell or Membrane interfaces, contact can potentially occur on both sides of the boundary. In a single Contact node, you can only model contact on one side. In the Contact Surface section of the settings for the Contact node, you can select whether the contact should occur on the top side (positive normal direction) or bottom side. In these interfaces, the orientation of the physics normal is controlled by the Boundary System that is attached to each boundary through the material models. The normal direction can be reversed using the settings in the Boundary System node. The ‘top’ and ‘bottom’ sides are defined by the orientation of the physics interface normal, which may thus differ from the geometry normal. If a Shell, Layered Shell or Membrane interfaces is an external source to a Contact node, the geometry normal of the boundary should point at the destination boundary
|
-
|
Run Get Initial Values for an arbitrary study in order to create data for result presentation.
|
-
|
-
|
Add an Arrow Surface plot to the new plot group.
|
-
|
In the Replace Expression () dialog, select the geometry normal.
|
•
|
When working with the Shell or Membrane interfaces, select Enable physics symbols in the settings for the interface. You will then see the physics normals plotted if you select a material model like Liner Elastic Material in the Model Builder.
|