EN 13445 - chapter 17 - fatigue

[kurtz]

Please advice.
I have a question regarding to the EN 13445-3 chapter 17 - simplified assessment of fatigue life.
In the table 17-1 we have Maximum permisable pressure Pmax. and we should count this value for each element acc. to the formulas from EN 13445-3.
We need this value to calculate Pseudo-elastic stress range (p.17.6.1.1)

I would like to use this simplified method from chapter 17 and apply it to the calculation of pressure vessel acc. to ASME VIII Div.1.

Do you think that I can use MAWP (maksimum allowable working pressure) calculated acc. ASME VIII Div.1 instead of P max. ?
I don't want to mix codes, but it seems to me that it should be allowed.

 

[Secho]

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 will be higher than the MAWP I think.

 

[XL83NL]

How is this topic different from your other one?