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金属波纹管疲劳测试的计算剖析

发表时间:2020-03-09 【

  管道运行中的温度变化都可能引起管道及设备的热胀冷缩,从而也使波纹管产生伸缩变形。有些场合,也会因机械位移而产生金属波纹管伸缩变形。这些位移变化所引起的应力往往是交变应力。金属波纹管在交变应力作用下就可能引起疲劳失效。对金属波纹管而言因位移变化较大,所以引起的交变应力范围也较大,容易引起疲劳破坏,因此波纹管的疲劳已成为设计计算时认真考虑的问题。

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