What are the regulations regarding fatigue analysis in A.S.M.E.?
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This post was last edited by dodoren on 2019-6-25 17:06. What are the regulations regarding fatigue analysis in A.S.M.E.? Are there specific standards in DIV2 regarding when fatigue analysis is required? Are its requirements the same as those in JB4732? Urgently waiting for experts' advice! ! If the equipment is started and stopped multiple times within a year, with pressures ranging from 200 bar to 40 bar or at atmospheric pressure, does this constitute a fatigue-prone vessel?
This includes filtering, the number of times the machine stops, the number of cycles within a 20% pressure variation range, and the number of cycles resulting from thermal stress changes due to temperature variations.
According to ASME Section VIII-II, Clause 5.5.2.1(a), fatigue analysis can be waived if either of the conditions is met. If the total number of cycles exceeds 10 to the power of 6, fatigue analysis cannot be waived.
Why does it belong? What is the basis?