Surface Interaction dialog box (Abaqus)

You can use a Surface Interaction modeling object in both contact pair and general contacts. You can also share the same modeling object.

The Surface Interaction dialog box corresponds to the *SURFACE INTERACTION keyword. For more information, see *SURFACE INTERACTION in the Abaqus Keywords Reference Guide.

Modeling Object
Name	Sets the name of the modeling object.
Label	Sets a unique integer for the modeling object.This label also appears in the Modeling Objects Manager dialog box, and you can filter the objects listed in that dialog box by their label.
Friction Parameter
Frictionless	Select the Frictionless check box to specify that no friction occurs between the contacting bodies.Clear the Frictionless check box to introduce friction properties into the analysis by specifying a Friction modeling object.
Frictional Behavior	Appears when you clear the Frictionless check box. Specifies a friction modeling object.Select a modeling object from the list or click Create Modeling Object to create one. The Friction modeling object specifies friction for the surface interaction model.For more information, see Friction dialog box (Abaqus) and *FRICTION in the Abaqus Keyword Reference Guide.
Surface Behavior
Default Surface Behavior	Select the Default Surface Behavior check box to accept the default hard contact pressure-overclosure relationship. Clear the Default Surface Behavior check box to define a Surface Behavior modeling object.
Pressure-Overclosure Relationship	Appears when you clear the Default Surface Behavior check box. Specifies a surface behavior modeling object.Select a modeling object from the list or click Create Modeling Object to create one. The Surface Behavior modeling object defines a non-default contact pressure-overclosure relationship.For more information, see Surface Behavior dialog box (Abaqus) and *SURFACE BEHAVIOR in the Abaqus Keyword Reference Guide.
Tracking Thickness Control
Adjust Default Tracking Thickness	Specifies the thicknesses for the contact pair interaction. Clear the check box to accept the default.
Tracking Thickness Value	Sets the thickness that determines the contacting surfaces to be tracked to ensure contract conditions are enforced.
Interfacial Layer Thickness
Add Pad Thickness (Contact Pair Algorithm Only)	Appears for Abaqus Dynamic Explicit analyses.Specifies contact thicknesses for the contact pair interaction.
Pad Thickness Value	Appears when you select the Add Pad Thickness check box.Sets the value to be applied as an additional thickness of a layer separating two surfaces. For example, type a value to model the thickness of a thin layer between two contacting surfaces.
Surface-Based Cohesive Behavior Properties
Include Cohesive Behavior	Includes surface-based cohesive behavior in the analysis.
Specify Cohesive Behavior	Lets you select the Cohesive Behavior modeling object to define surface-based cohesive behavior in a contact analysis.For more information, see Surface Based Coupling (Abaqus).
Include Damage Initiation	Includes material properties that define the initiation of damage for cohesive surfaces.
Specify Damage Initiation	Lets you select the Damage Initiation modeling object to specify material properties that define the initiation of damage for cohesive surfaces.For more information, see Defining damage modeling for Abaqus cohesive behavior.
Include Damage Evolution	Includes material properties that define the evolution of damage leading to eventual failure.
Specify Damage Evolution	Lets you select the Damage Evolution modeling object to specify material properties that define the evolution of damage leading to eventual failure.For more information, see Defining damage modeling for Abaqus cohesive behavior.
Specify Damage Stabilization	Includes viscosity coefficients used in the viscous regularization scheme for the damage model.
Specify Viscous Regulation	Lets you select the Damage Stabilization modeling object to specify viscosity coefficients used in the viscous regularization scheme for the damage model.For more information, see Defining damage modeling for Abaqus cohesive behavior.

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Defining contact properties (Abaqus Dynamic Explicit analyses)

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Surface Interaction dialog box (Abaqus), Simcenter 3D 2021.1 Series

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