ABAQUS Keywords Reference Manual  

*INTERFACE
Define properties for contact elements.

This option is used to assign element section properties to ITT-, ISL-, IRS-, and ASI-type contact elements.

Product: ABAQUS/Standard  

Type: Model data

Level: Part  Part Instance  Assembly  

References:

Required parameter:

ELSET

Set this parameter equal to the name of the element set containing the ITT-, ISL-, IRS-, and ASI-type contact elements for which properties are being defined.

Optional parameter:

NAME

Set this parameter equal to a name to be associated with this interface definition. The name given can be used to identify this particular interface definition in user subroutines such as GAPCON.

Data line for ITT-type elements: 

First (and only) line:

  1. Radial clearance between the pipes.

Data lines for ISL21A and ISL22A elements: 

There are no data lines.

Data lines for IRS-type elements for use with axisymmetric elements: 

There are no data lines.

Data line for ASI1 elements: 

First (and only) line:

  1. Area associated with the elements.

    2. Enter the direction cosine, in terms of the global Cartesian coordinate system, of the interface normal that points into the acoustic fluid:

  2. -direction cosine.

  3. -direction cosine.

  4. -direction cosine.

Data line for ASI-type elements for use with 2-D elements: 

First (and only) line:

  1. Element thickness. The default is unit thickness.

Data lines for ASI-type elements for use with axisymmetric elements or 3-D elements: 

There are no data lines.