*COUPLING

Define a surface-based coupling constraint.

This option is used to impose a kinematic, distributing, or uniform coupling constraint between a reference node and a group of nodes located on a surface. It must be used in conjunction with the DISTRIBUTING, the KINEMATIC, or the UNIFORM option.

This page discusses:

See Also
In Other Guides
Coupling Constraints
Element-Based Surface Definition
Node-Based Surface Definition

Products Abaqus/Standard Abaqus/Explicit Abaqus/CAE

Type Model data

LevelPartPart instanceAssembly

Abaqus/CAE Interaction module

Required parameters

CONSTRAINT NAME

Set this parameter equal to a label that will be used to refer to this constraint.

REF NODE

Set this parameter equal to either the node number of the reference node or the name of a node set containing the reference nodes.

When the reference node set contains multiple nodes, you should specify an influence radius to avoid overconstraint issues.

SURFACE

Set this parameter equal to the surface name on which the coupling nodes are located.

Optional parameters

INFLUENCE RADIUS

Set this parameter equal to the radius of influence centered about the reference node. If this parameter is omitted, the entire surface is used to define the coupling constraint.

ORIENTATION

This parameter applies only to distributing and kinematic coupling constraints.

Set this parameter equal to the name given to the ORIENTATION definition (Orientations) that specifies the initial orientation of the local system in which the constrained degrees of freedom are defined.

There are no data lines associated with this option.