How to model a branch (elbolet, weldolet, sockolet, etc...) fitting on an elbow?
Answer: Please see the following AutoPIPE help section: Help > Contents> Contents Tab> Modeling Approaches> Modeling Approaches> Bends> Base Supported Elbow> Model 5: Modeling a "dummy leg" as a pipe.
Referring to the example and related node numbers, model exactly as shown in this example with the added steps.
Step #10, at node B01 (weld location of fitting to the pipe) Insert> Xtra Data> Joint Type and user SIF, specify the correct SIF.
Step #11, select Node B01, Insert Run B03, length = length of fitting (location where branch piping is welded to the fitting).
Step #12, select Node B03, Insert> Xtra Data> Joint Type and user SIF, specify the correct SIF.
Step #13, optional if you believe the fitting is rigid, click on the pipe between B01 and B03 to select this pipe (highlighted Red) then select Insert> Rigid Options Over Range with Include Weight = yes, Include Thermal Expansion = Yes (shown as purple).
Tee, Cross, or Branch Piping Components - Modeling Approaches