What are the main conditions that lead to fatigue failure of pressure vessels?
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What are the main conditions that lead to fatigue failure of pressure vessels? a. Total stress, including peak stress b. Sufficient stress or strain cycles c. Sufficiently high initial stress d. Sufficiently high cyclic stress
Is this about choosing an answer? I choose A, B, D: lol
Answer: a. The total stress, including the peak stress.:victory::victory::victory:
Could you explain the reason? Many people have different understandings.
I choose B. . . Fatigue failure is primarily caused by cyclic stress. . . To be more specific, vibrations, as well as repeated loading and unloading cycles, can all lead to fatigue failure. For example, a metal skewer used for kebabs – it probably won’t break after being bent once, but it will break after being bent several times. . For large equipment, it may take tens of thousands or even hundreds of thousands of cycles of stress before fatigue failure occurs; a small number of stress cycles will not cause fatigue. . . . . My knowledge is limited; the above is meant only for discussion. Please feel free to point out any inaccuracies
I searched online, and the correct answer is option A; I really don’t know which one is right. I think we should choose a and b.
Since I saw online that the correct answer is A, I think it should be B, so I’m bringing it up for everyone to discuss.
https://wenku.baidu.com/view/cc3f0c8ecc22bcd126ff0cd3.html This article is good; after reading it, I think it’s A