Thank you for your responses.
Measuring or weighing the component is not an option, sditionally, my question is more general in nature.
For EN standards, the dimensions are clearly defined. In contrast, ASME B16.9 specifies, broadly speaking, that the reducer must be as strong as the...
Hello,
I am seeking advice on the best approach to model pipelines that incorporate ASME B16.11 fittings. These fittings appear to be quite stiff, and my concern is that I might model them as too flexible.
My current approach would be to simplify the model by using the minimum wall thickness...
Hello,
I am performing a pipe stress analysis for a system and have encountered some confusion regarding the wall thickness of reducers.
After reviewing the ASME B16.9 standard, I found that no specific wall thickness is defined for reducers. I also searched through the forum and learned that...
1503-44 Once again thank you for answering, but we are missing the goal of this thread. I already did analysis of the system regarding the locations I have to restrain. I understand what my goals are as a pipe stress engineer. My questions are more related to the execution and feasibility of the...
Hello, thank you all for the advices.
Sorry for not answering, I got sick and had to take some rest. :)
What was the diameter of the pipelines?
KevinNZ - Thank you for the guide tabs advice, I will use them where necessary.
As for the rotating anchor my question was more related to the design...
Hello everyone,
I'm currently working on a piping system of a live steam pipeline (around 500 m long) which serves as a main feed for turbine: DN200, s = 12.5 mm; T = 450°C; p = 68 bar(g).
I am doing a static analysis with ROHR2 software.
I have done numerous analysis for chemical facilities...
Hello,
I have encountered a problem when calculating the allowable stresses for bolts made of A2-70 material.
In a formula 5.2.2-1 of EN 13480-3 it is stated to use the second formula if Rm,t is available...
I wouldn't say it is the wrong tool. The software is designed for this type of problems and it is common to use shell theory for this verifications.
I think it is more the question of an interpretation, knowledge and experience of a 13445-3 standard and of shell theory for this type of...
Thanks for the answer.
Unfortunately, the software is very limited. This is an add-on to the base software which is intended for the pipe stress analysis.
It is mostly used for piping elements - circular, elliptic and oval shapes using shell elements - only shell elements.
Hello all,
I have a trouble assessing the FEA results of a set-in nozzle on a dished end.
Design pressure of a vessel p = 40 atu = 40,53 bar; temperature T = 100°C.
Due to changed pipe routing the existing vessel's nozzle should be checked against the loads from piping, but high stresses due...
Thank you all for your answers, they were helpful.
-I agree, so can we say that:
1) anchor is a full restriction support
and
2)fixed point is partially restrained support (moments free)?
-This is basically the answer I was looking for. Thank you!
-I agree, my mistake.
I don't know, maybe my question was not clear enough.
I never said all the pipe shoes are anchored. I don't see how that would be possible (T>300°C).
It is not the question of do I need to allow some movement of the anchor point, it is not about movements at all - it's about rotations and...
Hello,
Since the start of my career as a pipe stress engineer I can't crystalize the matter of whenever does the pipe shoe restricts rotations or not (and which directions).
1) Two major industry companies for which I have worked have guidelines that clearly points out for standard fix points...
