Defining Surface-Based Contact or Bonded Contact by Selecting Surfaces

You can select individual surface pairs manually and configure them for sliding contact, bonded contact, or thermal contact.

See Also
About Contact
About Surface-Based Contact and Bonded Contact
About Proximity and Orientation Requirements
  1. From the Connections section of the action bar, click Surface-based Contact .
  2. Optional: Enter a descriptive Name.
  3. Select a geometry support as the first surface, Support 1.
    Note: The distinction between the first and second surfaces in a bonded connection or thermal contact feature is mostly arbitrary.
  4. To change the support selection focus, click Support 2.
  5. Select a geometry support on a different component to act as the second surface.

    Tip: When the contacting surfaces are difficult to discern, you can render all parts translucent except for parts associated with the contacting surfaces.
    • Click green to render all parts translucent except for contacting parts associated withSupport 1.
    • Click magenta to render all parts translucent except for contacting parts associated with Support 2.

  6. For linear structural simulations, select one of the following Structural interaction options:
    OptionDescription
    Sliding Allows two surfaces to move sideways with respect to each other.
    Bonded Conjoins two surfaces permanently without the ability to move with respect to each other.

    Note: In a nonlinear structural simulation, buckling simulation, or frequency simulation, you cannot create surface-based sliding contact; the only choice is Bonded. In a nonlinear structural simulation, however, you can use general contact to configure sliding contact throughout the model.

  7. For thermal simulations, enter a value for the Conductance, which is a measure of the conductive heat transfer between the contacting surfaces.

    A higher conductance value implies an easier transfer of heat across the surfaces, while a conductance of zero prevents heat from transferring across the surfaces.

  8. For a thermal-structural simulation, define both the thermal and mechanical interaction between the surfaces.
    1. For the Structural interaction, select Bonded or None.
    2. For the Thermal conductance, enter a value for the thermal conductance between the surfaces.

      A higher conductance implies an easier transfer of heat between components, while a conductance of zero prevents heat from transferring across the surfaces.

      If you do not enter a value, the default behavior is fully conductive.

  9. Click OK.