In rare cases after you import a part, ABAQUS will report that all of its edges are invalid. The Repair invalid edges tool will try to repair the invalid edges by recomputing the data that define them. You should also use this tool if only invalid edges remain after automatically repairing a part.
The Query toolset provides a set of geometry diagnostic tools that determine if a part contains invalid edges. For more information, see “Using the Query toolset in the Part module,” Section 11.16.4. The operation to repair invalid edges is stored as a feature of the part; as a result, you can use the Model Tree to delete or suppress the operation.
To repair invalid edges:
From the main menu bar, select Tools
Repair.
ABAQUS/CAE displays the Geometry Repair Tools dialog box.
Tip:
You can also repair invalid edges using the 
tool, located with the repair tools in the Part module toolbox. For a diagram of the repair tools in the toolbox, see “An overview of repair techniques,” Section 47.2.
From the dialog box, select Repair invalid edges and click OK.
ABAQUS/CAE repairs invalid edges.
If you have finished repairing the part, you should check its validity by clicking mouse button 3 on the part in the Model Tree and selecting Update validity from the menu that appears.
