ASME B31.3 and EN 13480

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Ioana Tuglui
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Registriert: Di 23. Jan 2018, 12:03

ASME B31.3 and EN 13480

Beitrag von Ioana Tuglui » Di 23. Jan 2018, 12:07

Hey

Can anybody share major differences between ASME B31.3 and EN 13480 in terms of piping stress analysis?

Thank you in advance!

Best regards,
Ioana

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rohr2admin
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Registriert: Di 13. Sep 2011, 14:03

Re: ASME B31.3 and EN 13480

Beitrag von rohr2admin » Mi 24. Jan 2018, 08:33

Hi

This is a vast subject.
If you focalize only on the longitudinal stresses some of the differences are:
  • EN 13480-3 has stress intensification factors SIFs ii and io as in ASME B31.3 but also simple SIFs as in ASME B31.1
  • tratement of axial stresses due to pressure and loads is different
  • In the creep range EN13480-3 has a specific equation for creep
  • EN13480-3 has a special equation for settlement
  • the occasional loads k-factors (increase of allowable stress compared to sustained loads) is basically 1.3 in ASME B31.3 but depends on the type of occasional load in EN 13480-3
  • The calculation of allowable stresses is completely different (due to the different approach in ASME and EN codes regarding materials)
    ...
Of course this table is not complete.

Best regards

Ioana Tuglui
Beiträge: 2
Registriert: Di 23. Jan 2018, 12:03

Re: ASME B31.3 and EN 13480

Beitrag von Ioana Tuglui » Mo 29. Jan 2018, 18:21

Thank you!

Best regards,
Ioana

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