ASME formula t=PR/(SE-0.6P) - consideration of end load
ASME formula t=PR/(SE-0.6P) - consideration of end load
(OP)
Hi engineers,
A quick one, t=PR/SE-0.6P to calculate thk under internal pressure (circumferential stress).
Why ASME doesn't combine this circumferential stress with the longitudinal stress generated by the end load which is around 1/2 the circumferential stress ?
A quick one, t=PR/SE-0.6P to calculate thk under internal pressure (circumferential stress).
Why ASME doesn't combine this circumferential stress with the longitudinal stress generated by the end load which is around 1/2 the circumferential stress ?





RE: ASME formula t=PR/(SE-0.6P) - consideration of end load
And that formula is based on a failure theory of maximum principal stress. of which the hoop stress is.
Make sense?
RE: ASME formula t=PR/(SE-0.6P) - consideration of end load
Yes and no, if we consider a small piece of shell the two forces are working in the same plane and should be combined by the square root of the sum of the square for example ?
RE: ASME formula t=PR/(SE-0.6P) - consideration of end load
In VIII-1, the maximum principal stress theory is used. In VIII-2, for pressure only, the same is used, but for combined loadings (or design-by-analysis) the von Mises theory is used. (Old VIII-2 and current Section III used/uses Tresca).
RE: ASME formula t=PR/(SE-0.6P) - consideration of end load
It does make sense.
Thanks for your expalantions.