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TIE
19.5
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TIE: Define surface-based tie and cyclic symmetry constraints or coupled acoustic-
structural interactions.
This option is used to impose tie constraints, cyclic symmetry constraints, or coupled acoustic-structura l
interactions between pairs of surfaces.
Products: ABAQUS/Standard ABAQUS/Explicit
Type: Model data
Level: Part, Part instance, Assembly
References:
•
“Mesh tie constraints,” Section 28.3.1 of the ABAQUS Analysis User’s Manual
•
“Defining element-based surfaces,” Section 2.3.2 of the ABAQUS Analysis User’s Manual
•
“Defining node-based surfaces,” Section 2.3.3 of the ABAQUS Analysis User’s Manual
•
“Analysis of m odels that exhibit cyclic symmetry,” Section 10.3.3 of the ABAQUS Analysis User’s
Manual
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“Acoustic, shock, and coupled acoustic-structural analysis,” Section 6.9.1 of the ABAQUS A nalysis
User’s Manual
Required parameter:
NAME
Set this param eter equal to a label that will be used to refer to the constraint.
Optional, mutually exclusive parameters:
POSITION TOLERANCE
Set this param eter equal to a cutoff distance that is used to determine which nodes on the slave
surface are tied to the m aster surface. The calculation of the distance between the slave and master
surface for a particular slave node depends on factors such as shell element thickness, the setting of
the TYPE parameter, and the types of surfaces involved. Slave nodes that do not satisfy the position
tolerance are not tied to the master surface. The default value for this tolerance distance is 5% of
the typical element size in the master surface. If a node-based master surface is used, the default
tolerance distance is based on the average distance between nodes in the master surface.
TIED NSET
Set this parameter equal to the node set label of the node set that includes the nodes on the slave
surface that will be tied to the master surface. Nodes not included in this node set will not be tied.
19.5–1
ABAQUS Version 6.1 Module:
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