Search results for query: *

Imagine a situation where a pipeline is installed on top of a rock (never happens, right?). A sharp rock will make a sharp dent, meaning that the dent profile has a small radius of curvature. ASME B31.8R allows us to estimate the strain using the measured radius of curvature. Feature fails, case...

rconner, thanks for the detailed and interesting reply. I couldn't get the link to work, but the quote was very informative

Interesting, stanier, thank you. Can you point me towards further information on that?

Thanks to all the helpful replies. It is indeed a very big undertaking to determine the size of acceptable flaws. I did find a bit of Canadian code that applies. CSA Z662-11 'Oil and gas pipeline systems' requires the pipe to be "inspected for cuts, scratches, gouges, and other imperfections."...

Many websites give the rule that HDPE pipe can handle a scratch as deep as 10% of the wall thickness without reducing the pressure rating of the pipe. One source for this is AWWA M-55 ['Manual for the Design and Installation of Polyethylene Pipe' from the American Water Works Association], which...