[Phase 1 of Time-Limited Quick Response Contest] 026 [Completed]
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Rules: 1. If you want to answer immediately, give a score of +1 wealth to Floor 1 and write your answer in the “Reason for action” field (only the content within parentheses); see the image below for details. 2. One “*” represents 1 Chinese character (or 1 digit), and the answer must match exactly to be considered correct. 3. The first person to answer correctly will receive +10 wealth points; please reply in the comments on floor 2 or below to claim the reward ； 4. The scope of questions covers the commonly used standards and experience manuals in the fields of process engineering and piping ； 5. The difficulty level of the questions increases from easy to difficult. 6. Lower-grade students are welcome to participate actively. Question of this issue: 026. In pipeline design, fatigue resulting from (****), (***), and (****) should be taken into account. Standard answer: Stress cycling; Thermal cycling; Other cycles. Winner: None. Last edited by hutom123 on 2009-3-28 17:07.]
Pressure changes, thermal changes, displacement stress.
026. Fatigue resulting from (cyclic loads), (thermal displacements), and (accidental loads) should be considered in pipeline design.
Cyclic loading, thermal displacement, and accidental loading – these seem to be the three points
026. Fatigue resulting from (thermal expansion and contraction), (additional displacement at the ends), and (displacement loads) should be considered in pipeline design.
Cyclic loading, thermal displacement, accidental loading
Cyclic loading, thermal displacement, accidental loading
Fatigue resulting from (cyclic loading), (thermal displacement), and (plastic deformation) should be considered in pipeline design
Thermal expansion and contraction, point displacement, secondary stress
Sealed pipe threads, tapered pipe threads
Cyclic loading, thermal displacement, impact loading
Operating load, thermal displacement, accidental load
Cyclic load, thermal displacement, maximum total load
Cyclic loading, thermal displacement, pipeline vibration
Cyclic load, thermal load, accidental load.
Cyclic load, temperature variation load, accidental load
Cyclic stress, thermal displacement, alternating load
Cyclic loading, thermal displacement, end displacement
Cyclic loading, thermal displacement, accidental loading
Cyclic loading, thermal expansion, vibration loading