Do you have a copy of EN 13445? Shouldn't be too hard to find a reference. Look at (I have issue 1:2021 in front of me, which is afaik current) section 5.3.2.3 of part 3 which diverts you to 6.1.2/6.1.3 (4th indent). Sections 6.1.2/6.1.3 divert to section 6.2.2 -> ftest equals min. yield or Rp0.2, divided by 1.05. This safety factor of 1.05 then results in a 'testing' factor of 1.5/1.05 = 1.43, which equals the factor from the PED.
Im not familiar with the DBA-route (neither for ASME of EN), however after scrolling EN 13445-3, a.o. sections B.7.5 & B.8 seem to cover this. The approach for DBA is different then DBR.
Huub
- You never get what you expect, you only get what you inspect.