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Status Needs review
Categories Modelling
Created by Guest
Created on Oct 5, 2026

Show bend or tee SIFs when modelling them

When comparing different fittings, bend radii, tee types, tee dimensions, etc it would be good to be able to see the different SIFs that result from the inputs.

If you have an overstress at a joint or bend and you want to consider changes to reduce the stress then it MAY pass by changing from a LR elbow to a 3D bend or by reinforcing a tee. Instead of guessing that something may be better, going through all of the steps involved in re-running the model and checking the outputs it would be simpler to be able to see the SIFs on the bend or tee input box.

Although this does not take account of the changes to the flexibility of the joint it would still be helpful.

Another option for an already defined bend of tee could also be to display the new SIFs as well as the fraction or multiple of the current SIF.

Caesar II has a bend and intersection scratchpad that is useful and may provide some inspiration. That being said, I think the ideas presented above are better than Caesar II's implementation.