Dear Stress Analyst,

I am modelling universal expansion joint using the expansion joint modeller. We had bad results, we had failure in code compliance and very big nozzle loads. What I did is I made many trials, I put 15mm gap in the tie rod, I use very small stiffness,making my expansion joint almost free and flexible. I had the vendor's data for expansion joint but I did not follow the data like stiffnesses . My point is I will inform the vendor for the results what I had obtained and they can design again an expansion joint that can be suitable for my piping system. My question is. Is it possible for them to design an expansion joint by giving only the displacement in end to end (flange face) in expansion joint? What must I do?I need your help guys.


Regards,
Machoguy