Forum Post: RE: How is the "Bourdon effect" evaluated by the software when this option is enabled?

WALKTHRU is a model included with your version of the program. It can be found in the "Example" folder of your installation directory (default location is C:\Bentley). Open the WALKTHRU model and compare results with the Bourdon Effect unchecked, then checked (ensure pressure extension is enabled as well). In the PDF of your first post, there is a slight difference between your stresses before (11456.69 N/mm2) and after (11455.87 N/mm2), which means that the Bourdon is affecting your model in some way. The same can be seen for the Moment-In column.