Edge to Edge Contact (Abaqus)

In Abaqus Axisymmetric Structural and Dynamic Explicit solutions, you can use the Edge to Edge Contact command to define contact conditions between selected polygon or element edges.

Defining the contacting edges with Simulation Regions

To define contact between edges, you must first create a Simulation Region to define the regions to be in contact. A region is a collection of element edges in a section of the model where you expect contact to occur. Define contact between a single surface and itself by specifying the same surface twice.

For more information, see Working with reusable regions.

Additional properties for Axisymmetric Structural analyses

When you use an Edge to Edge Contact with an Abaqus Axisymmetric Structural analysis, you can define the following additional parameters.

• Contact propertiesYou can create a Contact Pair modeling object to define additional parameters to control the contact algorithm for each solution step. A Contact Pair modeling object corresponds to the Abaqus *CONTACT PAIR keyword. You then use the Contact Pair option in the Edge to Edge Contact dialog box to apply those parameters to the contact definition.

• Friction propertiesYou can also change the friction properties of contact pair interactions, and change the friction definition for each solution step. Use the Abaqus Change Friction Definition modeling object to define friction.

For more information, see:

• Defining contact pairs (Abaqus Structural and Thermal analyses)

• *CONTACT PAIR in the Abaqus Keywords Reference Guide

• Defining contact interaction analysis: overview in the Abaqus Analysis User's Guide

Additional contact parameters for Axisymmetric Dynamic Explicit analyses

When you use an Edge to Edge Contact with an Abaqus Axisymmetric Dynamic Explicit analysis, you can create a Contact Property modeling object to manage the properties, interactions, and behaviors of the Edge to Edge Contact, including defining an initial clearance for the first step of the solution. A Contact Property modeling object corresponds to the Abaqus *CONTACT PAIR keyword.

The Contact Property modeling object can include the Surface Interaction modeling object to define a mechanical surface interaction model. A Surface Interaction modeling object corresponds to the Abaqus *SURFACE INTERACTION keyword.

The Surface Interaction modeling object, in turn, can include the Friction and Surface Behavior modeling objects.

For more information, see:

• Defining contact properties (Abaqus Dynamic Explicit analyses)

• *CONTACT PAIR in the Abaqus Keywords Reference Guide

• Contact interaction analysis: overview in the Abaqus Analysis User's Guide

Surface smoothing

You can create a Surface Smoothing modeling object to specify the smoothing technique to use to improve the contact stress and pressure accuracy for axisymmetric, or nearly axisymmetric, surfaces. Three smoothing techniques are available: circumferential, spherical, and toroidal. A Surface Smoothing modeling object corresponds to the Abaqus SURFACE SMOOTHING parameter to the *CONTACT PAIR keyword.

Where do I find it?

Application	Pre/Post
Prerequisites	A Simulation file as the work part and displayed partAbaqus as the specified solver environmentAxisymmetric Structural or Dynamic Explicit as the analysis type
Command Finder	Edge to Edge Contact
Simulation Navigator	Right-click Simulation Objects→New Simulation Object→Edge to Edge Contact

How do I

Define an edge-to-edge contact

Define an edge-to-edge contact (Abaqus Dynamic Explicit)

Learn more

Automatic face pairing

Quick links

Command reference

Pre/Post video examples

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Edge to Edge Contact (Abaqus), Simcenter 3D 2021.1 Series

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