Where does "12" come from in bending stress fomula
Where does "12" come from in bending stress fomula
(OP)
I am wondering what is the meaning of "12" in the equation of bending stress for pressure vessels. S=12M/(I/c)
In the usual stress fomula, only M/(I/c). Is it safety factor?
Thanks to make me clear!
In the usual stress fomula, only M/(I/c). Is it safety factor?
Thanks to make me clear!





RE: Where does "12" come from in bending stress fomula
You didn't include units in the formula. I think what you have is a moment calculated in foot-lb and converted to in-lb (12 inches per foot) in the stress calc.
jt
RE: Where does "12" come from in bending stress fomula
As stated by jte you must either state Code used or the units of the equation.
RE: Where does "12" come from in bending stress fomula