Instancing Parts with ABAQUS

The ABAQUS file format allows users to instance a mesh multiple times. An example of this would be to create a mesh of a single bolt, but instance the bolt mesh several times in the ABAQUS model file to generate multiple bolts.

To export an ABAQUS file with instanced parts

  1. Click File and then Export.
  2. Select the desired location to save the file.
  3. Enter the File Name.
  4. Select Abaqus from the Save as type drop-down menu.
  5. Click Save. A new window will appear.
  6. Enter the appropriate settings.
  7. Click Finish.

Export Abaqus <’filename’> [Block <id_list>] [Sideset <id_list>] [Nodeset <id_list>] [BCSet <id_list>] [Instance Block <id_list> [Source_csys <id>] [Target_csys <id_list>] [Overwrite]  [Everything]

Any block defined in Trelis can be instanced n number of times in the ABAQUS file. To instance a block, a source coordinate system and a target coordinate system (where the mesh will be translated and rotated to) need to be defined. If no source coordinate system is given in the command, the default (global) coordinate system is used. The instance keyword can be used as many times as needed.

Note: By default, the Abaqus exporter writes 6 decimal places. The command "set Abaqus precision <n>" can be used to change the number of decimal places written.