Assigning contact properties for contact pairs in Abaqus/Explicit | ||
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ProductsAbaqus/ExplicitAbaqus/CAE
Assigning a contact property definition to a contact pair
If nondefault contact properties are desired, you can refer to a contact property definition that governs the interaction of the two surfaces.
Multiple contact pairs can refer to the same contact property definition.
Input File Usage
Use both of the following options:
CONTACT PAIR, INTERACTION=interaction_property_name surface_1, surface_2 SURFACE INTERACTION, NAME=interaction_property_name
Abaqus/CAE Usage
Interaction module:
Create Interaction Property: Name: interaction_property_name, Contact
Interaction editor: Contact interaction property: interaction_property_name
Example
Figure 1 shows the mesh used in this example. For purposes of this example, a balanced master-slave contact pair is used. The property definition for the contact pair (GRATING) uses a friction model where =0.4.
HEADING … SURFACE, NAME=ASURF ESETA, SURFACE, NAME=BSURF ESETB, … STEP Step1 DYNAMIC, EXPLICIT … CONTACT PAIR, INTERACTION=GRATING ASURF, BSURF SURFACE INTERACTION, NAME=GRATING FRICTION 0.4
Changing contact properties
Contact property models are defined as model or history data for a contact pair analysis. You can modify the contact properties from step to step; however, the old contact pair should be deleted and redefined using the new interaction.
Example
For example, the following input could be used to change the friction coefficient used for contact between ASURF and BSURF in the second step of the analysis started in the previous example:
STEP Step2 DYNAMIC, EXPLICIT … CONTACT PAIR, INTERACTION=GRATING,OP=DELETE ASURF, BSURF SURFACE INTERACTION, NAME=GRATING_NEW FRICTION 0.5 CONTACT PAIR, INTERACTION=GRATING_NEW ASURF, BSURF