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Calculation internal pressure for thick-walled pipes
31-12-2012, 03:35 PM,
RE: Calculation internal pressure for thick walled pipes
It should be noticed that the formulae for the hoop stress are given for the so-called 'simplified' strength calculation. In general NEN 3651:2012 paragraph 8.3.1 refers to NEN 3650 parts 1 to 5 for the (hoop) stress calculation, where only the formula for the thin-walled pipe is given.

The formula for the thick-walled pipe changes to the formula for the thin-walled pipe if D/d approaches infinity.
Originally PLE has been developed for the strength and stability calculation of 'thin-walled' pipelines.
The hoop stress calculation in the NEN 3650 module is based on NEN 3650-2:2012. Nevertheless it is always good to apply a more accurate formula.

Thank you for your remark.

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RE: Calculation internal pressure for thick walled pipes - by ir KW Radder - 31-12-2012, 03:35 PM

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