To Export a Surface Mesh in NASTRAN format
This procedure assumes you are in the File tab.
1. If you have multiple result windows, select a result window. You can export the surface mesh for only one fringe plot at a time.
2. Select NASTRAN input option from the Type drop-down list on the Save As dialog box.
3. In the File name box, type a name and click Save. The Save Nastran Mesh dialog box opens.
4. Select a mesh type either Deformed or Undeformed.
5. Click OK. The file is saved with a .nas extension.