Hello,

I am currently working on several system including large diameter ducts. In general there is a 140" (~3500mm) duct submitted to 750° F temperature. The relation D/t exceed by far the code limit of 100.

So I am thinking about my options to properly analyze those ducts. I know that CAESAR will have trouble predicting the stress intensification factors of bends and connections. I also expect some trouble to predict 2D and 3D stresses, for example evaluate the concentrated stress in a support saddle. Will I have some issue evaluation expansion joints too?

I am searching for PRG solutions, like FEATools and FEPipe, but I don't know if those software will fully attend to my needs.

I hope someone can help me to better understand CAESAR limitations on this kind of analysis.

Thank you already for the attention.

Att.,
Henrique Brisson

Hello,

Buckling is one of the criteria to check for large D/t pipes.

Regards,

Does anyone have already used the software FEPipe?

Is it good to model and analyze itens that are not according to ASME codes?

Thank you.


Att.,
Henrique Brisson