Just a quick question if anyone can please answer,
Hydrostatci Pressure testing is already being performed on a NPS8 pipeline. After completion of the pressure test, we are replacing a 2" weldolet (A105) with a 3" weldolet (A350) at the top of a riser. NDE testing will be done to the new...
Is there a minimum ratio of t/D to determine whether or not you can assume it is thin walled (i.e. 2t = t)? Is it critical to use the thin wall equation?
Finally, Regarding HDD, can I use either equation? The differences of inertia between the two is within a ~0.1 depending on the thickness. I...
It took me a bit to find the forum page again,
http://www.eng-tips.com/viewthread.cfm?qid=167106
this is where I saw the equation appear once more. They are referring to the inertia of a ring... any explanation would be great. Thanks again for everything.
Thanks for the quick reply, I apologize, I can't see why shear is induced in the model either, if you have a few minutes, would you please take a quick scan through the paper...
Hello,
I have a question regarding two different equations used to calculate bending moment of inertia for pipes. Any help would be much appreciated.
The first equation I came across shows my moment of inertia as:
I = pi/64(D^4-d^4) where;
D= outer diameter of pipe
d= inner diameter of pipe...
