Dear all,

I am doing a stress analysis on an Low Pressure superheater pipe using CAESAR II software. The output of the analysis (static) would be the displacement, the forces, restraints, etc. I have question regarding this:
1. How can I verify the output of the software? For example, can I do this: compare the output of the software such as the displacement, to actual pipe hanger reading or pipe hanger design data?
2. I have been thinking to do some manual calculation such as Thermal Movement Calculations (reference: Mohinder L, Nayyar, Piping Handbook, McGraw-Hill) of this particular piping system and compare it to the displacement result of stress analysis I carried out.
3. What is the practice to check whether the pipe stress analysis result is accurate and correct?

Please advice and comment.

Thank you.

Regards,

Hafiz

Hafiz,

You can also model a simple beam with different end conditions and verify the displacement say under weight and forces. Because we are modeling with the beam elements.

Of course modeling examples from published litreture is good place to compare. You can also look in the ASME B31.3 code examples.

As part of our internal QA, we have many benchmarks that we run. You can purchase some of them at a resonable cost. This is the CAESAR II Verification and validation manual. You can purchase this from your Intergraph sales representative.

You can also read "Matrix Analysis of Structures" book. Follow the procedures in calculating displacements, forces moments, and restraint reactions. From there, you can formulate in excel and mathcad some simple beam systems and compare the results in "beam element software" such as Caesar.


Cheers!