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+--- Thread: Ww and Iw should be multiplied by a factor of 1/(1-ν²) (/thread-783.html)
Ww and Iw should be multiplied by a factor of 1/(1-ν²) - shaswin - 07-03-2026
I have requested the NEN commission to add in NEN 3650-1 D.3.1 a NOTE 2 under NOTE 1 wih this text:
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For accurate results of Ww and Iw (of the pipe wall), the transverse Poisson's ratio may also be taken into account. Ww and Iw should therefore still be multiplied by a factor of 1/(1-ν²).
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This would reduce the stress and ovalisation calculations a little bit.
So when this is implemented in the new NEN 3650-1 code end Q2/begin Q3, PLE then needs to change its sources.
RE: Ww and Iw should be multiplied by a factor of 1/(1-ν²) - B Bharatadjaya MSc - 15-03-2026
Hey Shaswin,
Thanks. This information has been added to our issue tracker system.
RE: Ww and Iw should be multiplied by a factor of 1/(1-ν²) - shaswin - 21-04-2026
Good job for adding this in the issue tracker system. Keep up the good work...