Re: Plastic Material Calculation of stresses at

> CH12 in R & Y at 12.7 gives some insight but continually cautions you on how
large
>errors can occur.

My Roark is the older version, so I don't know which approach they suggest. The 'large errors' note tells me it's the WRC 107 approach. If you're talking about a small diameter, relatively thick pipe, you can use the appropriate ring formula. There won't be much in the way of errors because the pipe won't become elliptical. If it's a large diamter thin wall pipe (say D/t>30) you'll probably have to stiffen it. The nozzle calculation probably won't do you much good, since you don't have a nozzle or a branch connection.

Christopher Wright P.E.    |"They couldn't hit an elephant at
chrisw@skypoint.com        | this distance"   (last words of Gen.
___________________________| John Sedgwick, Spotsylvania 1864)