Section VIII Failure Theory Basis
Section VIII Failure Theory Basis
(OP)
In preevious versions of the Code the allowable stress intensity values were based on Tresca (Max Shear Stress) Failure theory. I see the latest version of Div 2 has been converted to Von Mises (max strain energy) failure theory.
Is Div 1 still based on Tresca, or have the allowable values for Div 1 also been "converted" to Von Mises?
Thanks!
Is Div 1 still based on Tresca, or have the allowable values for Div 1 also been "converted" to Von Mises?
Thanks!





RE: Section VIII Failure Theory Basis
"Section I and Division 1 of Section VIII use the maximum stress theory, by implication, but Section III and Division 2 use the maximum shear theory."
Obviously, Div. 2 has changed to Mises (Section III has not). As far as I know only Sec. VIII, Div. 2 got a major overhaul.
RE: Section VIII Failure Theory Basis
At any rate, thanks for the correction, I am now back on track.