In Ansa, the following commands are commonly used to set contact for Abaqus:

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2. Contact pair

The most commonly used contact pairs are generally created by calling up the creation dialog box through AUXILIARIES → CONTACT → CONTACT .

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Common settings are generally as follows:

  1. Define the contact name for easy retrieval
  2. Define the contact type as contact pair (CONTACT PAIR) or general contact (CONTACT INCLUSIONS or CONTACT EXCLUSIONS)
  3. For the contact slave surface, the unit set needs to be set in SET in advance
  4. For the contact master surface, the unit set needs to be set in SET in advance
  5. Contact behavior, define friction coefficient, etc.
  6. Contact surface adjustment behavior, select YES to define the tolerance value in the subsequent POS_TOLER
  7. Whether the contact surface produces small slip, the default is NO
  8. Contact type, the default is surface-to-surface, or node-to-surface
  9. Contact gap, define the interference or gap value of the contact

3. General Contact

It shares the same command and dialog box as creating contact pairs. You only need to change the contact type to CONTACT INCLUSIONS or CONTACT EXCLUSIONS.

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  1. Define contact type
  2. Contact slave surface, select the unit set set in SET
  3. Contact master surface, select the unit set set in SET (usually not required, can be left blank)
  4. Contact behavior

4. Tie Contact

Call up the dialog via AUXILIARIES → CONTACT → TIE.

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  1. Contact the slave surface, select the unit set set in SET
  2. Contact the master surface, select the unit set set in SET
  3. When the two contact surfaces do not overlap, you can set the contact tolerance here

5.Contact Assistant

Ansa built-in function that can guide the establishment of contact. Called through the command AUXILIARIES → CONTACT → Assistant.

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6. Automatically create contact pairs

Called up via AUXILIARIES → CONTACT → Flanges.

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  1. Select the object to search
  2. Define the search distance tolerance

Check and define contact parameters in the pop-up dialog box.

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It is usually defined in the OUTPUT tab of STEP. If there are no special requirements, just select PRESELECT as the output parameter.

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