I would like to Know the Method of analysis for Pipies D/t Ratio Grater than 100.
Actually I am analysisng a pipe of 1700mmID X 14mm Thk.
Please guide me how to calculate the SIF values for bends and Branches.

The Branch to be analyzed is 1700mm X 800mm

Have a look at FE-Pipe .... Paulin Research Group.

Hi Sam,

You can get the values using Ansys software too..If u r n urgent then outsource the analysis of the particular object to CAD dept. in Annauniversity or CAD centre.

Is there a guide to calculate SIF with Finite Element softwares?? I had a look on Fe-SIF from Paulin Research Group but it has definite geometries, I need to calculate Sif for a sulphur line which uses crosses and I know how to use Ansys... I only need a guide...

Samvedan,
Please refer to AWWA (American water works association) Manual M11 Steel Pipe - (A Guide for Design and Installation). This manual is specifically used for very large diameter pipe. And it is applicable for pipes with D/t ratio > 100.
I hope this will be helpful to you.