Example of a FEM calculation

This example is to show the deformation due to pressure of a pipesegment welded onto a vessel. This calculation was made to compare the results with the results from Roark. The effort was done to show that blindly relying on Roark`s formulas or any FEM programme can result in unacceptlable mistakes.
The equivalent stresses calculated with the FEM programme were more in line with the expectation than the ones calculated with Roark's formulas. However the direction of some components of the equivalent stress were proven to be incorrect