EN 13445: additional calculation?

[ElCidCampeador]

Hi,
There's a carbon steel pressure vessel, design pressure 500 bar, that I have to design in accordance with EN 13445+PED. Is EN 13445 enough as design calculation? Or in this code is required to check in other way the result too? (I ask this because for ASME VIII Div.1 U-1 for pressure>200 bar it's necessary additional calculation)
N.B: My client requires also a fatigue analysis

Thank you

 

[XL83NL]

No. Eurocode EN 13445 doesn’t have further differentiation in divisions like ASME has and as such, there’s only EN 13445-3 to cover this. However given the high design pressure the DBA part may be more appropriate than the standard DBF sections of EN 13445-3. Also check if cyclic loading is or isn’t part of the design. EN 13445-3 is more specific on this than ASME VIII-1. Fatigue analysis is required when you have more than 500 cycles.

What’s your design temperature, what are the dimensions, etc.?

 

[ElCidCampeador]

What’s your design temperature, what are the dimensions, etc.?

T=100°C, O.D.760mm, Design pressure=400 bar (not 500, my mistake)
Fatigue: 400000 loads/year, delta=70 bar

It's not in creep range, do you think it's still applicable DBA?

 

[XL83NL]

I suppose yes. Upon review of the applicable parts in EN 13445-3, I dont see any direct reason why not. Check Ch 17 and Ch 18, first by verifying para 5.4.2. And see annex B and annex C.
However bear in mind I have no experience with such high pressures under EN 13445.

Will this be something youll be designing yourself? Is it possible to work under ASME VIII Div 2 + PED?