This option is used to create a surface interaction property definition. The surface interaction properties will govern any contact interactions that reference this surface interaction.
Products: Abaqus/Standard Abaqus/Explicit
Type: Model data in Abaqus/Standard; Model or history data in Abaqus/Explicit
Level: Model in Abaqus/Standard; Model or Step in Abaqus/Explicit
“Mechanical contact properties: overview,” Section 33.1.1 of the Abaqus Analysis User's Manual
“Contact pressure-overclosure relationships,” Section 33.1.2 of the Abaqus Analysis User's Manual
“Contact damping,” Section 33.1.3 of the Abaqus Analysis User's Manual
“Frictional behavior,” Section 33.1.5 of the Abaqus Analysis User's Manual
“Breakable bonds,” Section 33.1.9 of the Abaqus Analysis User's Manual
“Thermal contact properties,” Section 33.2.1 of the Abaqus Analysis User's Manual
“Electrical contact properties,” Section 33.3.1 of the Abaqus Analysis User's Manual
“Pore fluid contact properties,” Section 33.4.1 of the Abaqus Analysis User's Manual
“UINTER,” Section 1.1.34 of the Abaqus User Subroutines Reference Manual
“VUINTER,” Section 1.2.13 of the Abaqus User Subroutines Reference Manual
“VUINTERACTION,” Section 1.2.14 of the Abaqus User Subroutines Reference Manual
Set this parameter equal to a label that will be used to refer to this surface interaction property.
Use this label on the INTERACTION parameter of the *CONTACT PAIR option (for an Abaqus/Standard contact analysis or an Abaqus/Explicit analysis using the contact pair algorithm) or on the data line of the *CONTACT PROPERTY ASSIGNMENT option (for an Abaqus/Explicit analysis using the general contact algorithm) to assign this surface interaction property to a contact interaction.
This parameter applies only to Abaqus/Explicit analyses using the contact pair algorithm.
Set this parameter equal to the thickness of an interfacial layer between the contacting surfaces. The value can be positive or negative.
In an Abaqus/Standard analysis, include this parameter if the surface interaction model is to be defined in user subroutine UINTER.
In an Abaqus/Explicit analysis, include this parameter without any assignment if the surface interaction model is to be defined in user subroutine VUINTER. Set USER=INTERACTION if the surface interaction model is to be defined in user subroutine VUINTERACTION. VUINTER is applicable to contact pairs, whereas VUINTERACTION is applicable to general contact.
When this parameter is included, the *SURFACE BEHAVIOR option and its various suboptions cannot be used under the same interaction definition.
Set DEPVAR equal to the number of state-dependent variables required for user subroutine UINTER in an Abaqus/Standard analysis or for user subroutine VUINTER or VUINTERACTION in an Abaqus/Explicit analysis. The default is DEPVAR=0.
Set this parameter equal to the number of property values needed as data to define the surface interaction model in user subroutine UINTER in an Abaqus/Standard analysis or in user subroutine VUINTER or VUINTERACTION in an Abaqus/Explicit analysis. The default is PROPERTIES=0.
This parameter is ignored when the option is used in association with a connector element.
This parameter applies only to Abaqus/Standard analyses.
Include this parameter when the interface stiffness matrix is not symmetric. This parameter causes Abaqus/Standard to use its unsymmetric equation solution procedures.
This parameter applies only to Abaqus/Explicit analyses in which USER=INTERACTION.
Set this parameter equal to the thickness that determines the contacting surfaces to be tracked. Only contacting surfaces whose proximity is within this thickness are available for user-defined interactions. This parameter affects only node-to-face contact, and the input value for this parameter cannot be negative. An internal default value is used if a zero value is input or if the parameter is omitted.
First (and only) line:
Out-of-plane thickness of the surface or cross-sectional area for every node in the node-based surface. The default value is 1.0.
First line:
Out-of-plane thickness of the surface for two-dimensional models or cross-sectional area for every node in the node-based surface. The default value for both is 1.0. In other situations, enter a blank line.
Second line (needed only if the PROPERTIES parameter is used):
Enter the values of the surface interaction properties, eight per line.
Repeat this data line as often as necessary to define all material constants.
First line:
Enter a blank line.
Second line:
Enter the values of the surface interaction properties, eight per line.
Repeat this data line as often as necessary to define all material constants.