because I remember that Tresca is abs(P1-P2) or abs(P1-P2) or abs(P1-P2) that must be below yield stress.
Intensity is only P1-P3, is it the same thing?
When designing a pressure vessel, what stress has to be used : Tresca or Intensity.?
I made a mistake, I meant |P1- P3| or |P1-P2| or |P2-P3|
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