Error when Creating FE Mesh: Open Definition Lines

The boundary lines of a surface must form a closed continuous line. Otherwise, the error message shown in Image 01 appears.

1 Error Message "The definition lines of a surface are not closed"

The error message indicates the surface for which the definition lines are not closed. In our example, this is Surface 2 (marked in red in Image 01). In Project Navigator – Data, this surface is highlighted in red (Image 02).

2 Project Navigator - Data: Identifying Incorrectly Defined Surface

The surface must be adjusted accordingly. In this case, it is necessary to add Line 8. This is also shown in the video.