When performing stress calculations using CAESAR 2, how do people determine that the flexibility of the pipes meets the requirements?
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When performing stress calculations using CAESAR 2, how do people determine that the flexibility of the pipes meets the requirements? For example, to check whether the allowable stress exceeds that of the pipe selected – are there any other methods for verification? ?
As long as the primary and secondary stresses in the results don’t turn red, that’s fine; then check the OPE and SUS values for Stress Sum in the results, as well as the percentage of the actual stress relative to the allowable stress
1. Are the primary stress and secondary stress exceeding the limits?； 2. Flange leakage calculation ； 3. Node displacement: to check whether the supports are properly in place and whether the piping system is stable ； 4. Occasionally, dynamic analysis is conducted to examine the vibration of the piping system ； That’s about it.
The stress is within acceptable limits, the loading requirements are met, and there is no leakage at the flanges
Must it be checked whether the flange is leaking? It was simplified during modeling – neither valves nor flanges were included in the model; only pipes are present
Flange leakage verification is generally applied to pipelines under severe operating conditions or with highly toxic media. Severe operating conditions refer to stress levels of 80% or higher. Additionally, flanged valves can be considered as rigid elements; modeling them is recommended, as it can have an impact in certain situations.