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How does a pressure vessel fail when the interal pressure exceeds the yield stress of the material?

Maybe; Like most things it depends on specifics. Even at pressure below that which would cause general yield , there is local yield at stress concentrations and imperfections. This is shown when using ...
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How does a pressure vessel fail when the interal pressure exceeds the yield stress of the material?

Short answer No. Although material may yield locally, it does not have to lead to failure. There is also a design with multiple pre-stressed walls, which may contain fluid at a higher pressure than ...
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