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Have a look here: http://www.wuerzinger.net/Druckbehaelter.html I think you have to translate, hope it will be helpfull!!

I think you can use the "MAWP" for each element but just going to the limit, this is, which value of pressure I have when I arrive to the maximum stress that each element can support. Then you can use that value for the calculation of the fatigue for every element. For sure the Pmax obtained...

Thanks for clarification david339933.

Hi all, I'm just trying to make the PQR and WPQ performance qualifications required for a pressure vessel. We have to make fillet welds in small Ø pipe (NPS 3/8) connected to shell, we want to do it with GMAW process. So my questions are: For performance: - Do I have to make test coupon of...