Stress verification for CAESAR 2
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After obtaining the data in CAESAR2, how can one determine whether the primary and secondary stresses in the piping system are within acceptable limits? Seeking guidance! ! !
It’s clearly a complete beginner; I suggest you take a look at those few books by Acefna first.
In short: The CODE STRESS CHECK for both cold and hot states has passed. Ideal cold-state CODE STRESS %: less than 50, around 10 is even better; ideal hot-state CODE STRESS %: not more than 90. This is a basic requirement; the rest needs to be analyzed specifically.
Thank you! It’s quite difficult for complete beginners to get started! ! !
Could you share some information about Esfna’s books?
I would like to ask the experts: where does the requirement that it should be less than 50% in the cold state and less than 90% in the hot state come from? I only remember that it needs to be less than 100% in both cases. I would appreciate your guidance.
There are no specific standards; these are my requirements for beginners. They stem from my many years of design experience. What I mention is the best possible level, while what you refer to is the theoretical maximum value. I’m not an expert – you are a scholar, an expert, whereas I’m just at the second grade of elementary school. I hope to be able to learn from you.
The verification of CAESAR II is carried out in accordance with relevant codes, such as B31.3. Generally, only the EXP status is checked, which is somewhat different from the analysis and design of pressure vessels
There is no such information there; it’s just based on experience. The value we use is generally no more than 90 as well
My understanding is that when the maximum stress value approaches the allowable stress, caution is needed at this point, as it is often necessary to revise the non-conservative modeling. For example, the properties of the relevant structures are refined, and the mechanism provides more detailed information on port displacement. . . Wait, the closer it is to the actual situation, the better. After all, there are certain errors in the calculation assumptions of stress analysis software as well as in the standard evaluation criteria, so it is advisable to include a margin of safety.
In the Caesar results, what does “no code stress check processed” mean under operating condition OPE? Please advise, experts