Contact surface entities are used to define and store contact definitions typically used in contact analysis. Contact surfaces are defined using elements (1D/2D/3D) and their respective facecodes. A contact surface is displayed as an arrow on the selected element faces. The direction of the arrow is along the element normal that defines the contact surface. Contact surfaces are shown under the ContactSurface folder within the Model browser.
Contact surfaces have a display state, on or off, which controls the display of a contact surface in the graphics area. The display state of a contact surface can be controlled using the icon next to the contract surface entity in the Model browser.
Contact surfaces also have an active and export state. The active state of a contact surface controls the display state of the contact surface and the listing of the contact surface in the Model browser and any of its views. If a contact surface entity is active, then its display state is available to be turned on or off and it is listed in the Model browser and any of its views. If a contact surface entity is inactive, then its display state is turned off permanently and it is not listed in the Model browser or any of its views. If a find operation "finds" an inactive contact surface entity, that contact surface entity will automatically be set to active.
The export state of a contact surface entity controls whether or not that contact surface is exported when the custom export option is utilized. The all export option is not affected by the export state of a contact surface. The active and export states of contact surface entities can be controlled using the Entity State browser.
The following panels can be used to create and edit contact surfaces:
Contactsurfs
Solver Card Support for Contact Surfaces
Supported Card
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Solver Description
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Supported Parameters
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Notes
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/LINE/SEG/
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Definition of the line - segments
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/SURF/SEG/
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Describes the surface definition - segments
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Master Slave contact is represented using contact surfaces.
Supported Card
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Solver Description
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Supported Parameters
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Notes
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ELIST
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Damp Shell Elements for a Fluid Volume
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SURF
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Defines a surface used in a contact definition.
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Defined using the Contact Surfs panel
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The following Actran specific surfaces are supported:
Supported Card
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Solver Description
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Supported Parameters
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Notes
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BC_MESH
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INCIDENT_SURFACES
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INFINITE_ELEMENTS
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INTERFACE
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MODAL_BASIS
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RADIATING_SURFACES
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RAYLEIGH_SURFACES
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Supported Card
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Solver Description
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Supported Parameters
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Notes
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SideSets
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Provides a second means of applying loads and boundary conditions to the model.
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Supported Card
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Solver Description
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Supported Parameters
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Notes
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*SET_SEGMENT
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Definition segements on element faces.
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Supported Card
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Solver Description
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Supported Parameters
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Notes
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ELIST
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Defines a list of CQUAD4 and CTRIA3 structural elements for virtual fluid mass
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Supported Card
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Solver Description
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Supported Parameters
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Notes
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$SURFACE
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Surface definition
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ELEMENTS, SURFID, SYSTEM, MAXSMOOTH, SFSET
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The name of the contact surface is getting exported to the SFSET parameter. On import, the contact surface will be named after the SFSET parameter.
Known limitation:
| • | The reader does not combine two individual $SURFACE cards into a surface set if the carry the same name. |
| • | Several surfaces can be combined by an $SFSET card instead. |
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Supported Card
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Solver Description
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Supported Parameters
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Notes
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.SEL FACE
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Defines a set of faces of 3D elements
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GROUP, NOM, MAILLE, FACE
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See Also:
Browsers
HyperMesh Entities & Solver Interfaces
Include Files
Model Setup
