The source I have for thin-walled tubes is an article from Machine Design magazine called "Stress and Deflection in Short Tubes." The author presents an algorithm for finding a correction factor for the existing thin-wall equations:
S = P * r / t
and
d = s * r / E
The article does...
According to vonMises criterion, allowable stress in pure shear (Ss) relates to yield in pure tension (Sy) by:
Ss = Sy / sqrt(3)
or
Ss = 0.577*Sy
Hope this helps. This is from "Mechanical Metallurgy" by George Dieter, 3rd edition, eqn. 3-14.
Desertfox,
Thanks for your reply, but that is the point of my post. That formula (I have Roark's sitting in front of me) is for relatively long, uniform sections of tube. As I said in my first post, I have a very short section. The wall thickness is almost as long as the length. I have...
I am trying to find and equation or algorithm for calculating hoop stress for a short section of thick walled cylinder.
The standard formulas for calculating stresses assume a relatively long cylinder, which is not the case in my application. The r/t ratio is about 2.7 and the l/r ratio is...
