Select ToolsRepair from the main menu to display the Geometry Repair Tools dialog box. When you choose Edge from the dialog box, the Tool list displays the following methods for repairing edges:
Repair small edges
You can repair selected small edges. ABAQUS/CAE removes the small edges and repairs the adjoining edges to create a closed geometry.
Merge edges
You can select a series of connected edges, and ABAQUS/CAE merges them into a single edge and deletes redundant vertices along the edges. Figure 472 illustrates the effect of merging edges.
Repair invalid edges
In rare cases after you import a part, ABAQUS will report that some 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 the Query toolset indicates that the part contains only invalid edges.
Remove redundant entities
An imported part can contain redundant vertices that are positioned along a continuous edge. Similarly, an imported part can include redundant edges that are internal edges. Redundant vertices and edges do not change the shape or the area of a part and are not required for a complete definition, as shown in Figure 473.