*TIE
Optional parameters:
ADJUST
Set ADJUST=YES (default) to move all tied nodes onthe slave surface onto the master surface in
the initial configuration, without any strain.
Set ADJUST=NO if the slave nodes will not be moved. Thisis the default if the slave surface
belongs to a substructure or ifone or m ore ofthe surfaces is beam elem ent-based.
CONSTRAINT RATIO
This parameter applies only when twosurfaces with rotational degrees of freedom are tied with an
offset but the NO ROTATIONparamet er is used.
Set this parameter equal to the fractional distance between the master reference surface and
the slave node at which the translational constraint should act. By default, ABAQUS will attempt
to choose this distance such that thetranslational constraint acts precisely at the interface.
CYCLIC SYMMETRY
This parameter applies only to ABAQUS/Standard analys es.
Include thisparam eterto invoke a constraint between the faces bounding a repetitive sector of
a cyclic symmetric structure. This parameter can be used only in conjunction with the *CYCLIC
SYMMETRY MODEL option.
NO ROTATION
Includethis parameter if rotation degrees of freedom should not be tied. If this parameter is omitted,
any existing rotation degrees of freedom will be tied if applicable, in addition to the translation
degrees of freedom.
NO THICKNESS
Include this parameter to ignore shell thickness effects in calcu lations involving position tolerances
and adjustments for initial gaps.
TYPE
SetTYPE=SURFACE TO SURFACE (default for most cases in ABAQUS/Standard) to have the tie
coefficients generatedsuch that stress accuracy is optimized for the specified surface type pairings.
Set TYPE=NODE TO SURFACE(default for all cases in ABAQUS/Explicit) to have the tie
coefficients generated according to the interpolation functionsat the point where the slave node
projects onto the master surface.
Data lines to define the surfaces forming the constraint pairs:
First line:
1. Theslave surface name.
2. Them aster surfacenam e.
Repeat this data line as often as necessary to define all the surfacesforming the constraint pairs. Each
data line defines a pair of surfaces that willbe tied together.
19.5–2
ABAQUS Version 6.1 Module: ID:
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