Abaqus Keywords Reference Guide  
How to find keyword examples

*GAP
Specify clearance and local geometry for GAP-type elements.

This option is used to define the behavior of GAP-type elements.

Products: Abaqus/Standard  Abaqus/CAE  

Type: Model data

Level: Part,  Part instance  

Abaqus/CAE: Unsupported; similar functionality is available by modeling connectors.

Reference:

Required parameter:

ELSET

Set this parameter equal to the name of the element set containing the GAP-type contact elements for which properties are being defined.

Data line for GAPUNI and GAPUNIT elements: 

First (and only) line:

  1. Initial clearance, d.

    2. If the remaining fields are omitted or specified as zero, the contact direction will be computed from the nodal coordinates.

  2. Global X-direction cosine of the contact direction.

  3. Global Y-direction cosine of the contact direction.

  4. Global Z-direction cosine of the contact direction.

  5. Element cross-sectional area.

Data line for GAPCYL elements: 

First (and only) line:

  1. Minimum/maximum separation distance, d.

  2. Global X-direction cosine of the cylinder axis.

  3. Global Y-direction cosine of the cylinder axis.

  4. Global Z-direction cosine of the cylinder axis.

  5. Element cross-sectional area.

Data line for GAPSPHER elements: 

First (and only) line:

  1. Minimum/maximum separation distance, d.

  2. Enter a blank field.

  3. Enter a blank field.

  4. Enter a blank field.

  5. Element cross-sectional area.

Data line for DGAP elements: 

First (and only) line:

  1. Clearance, d.

  2. Enter a blank field.

  3. Enter a blank field.

  4. Enter a blank field.

  5. Element cross-sectional area.