ASMEB31.3 - Buckling
ASMEB31.3 - Buckling
(OP)
Hi all,
Does any one knows why so little guidance is provided by ASMEB31.3 for checking against buckling?
Only §302.3.1(c) seems to provide a maximum being the maximum allowable in compressions not greater than in tension as per appendix A. It is also stated that consideration shall be given to structural stability...
§304.1.3 is only for buckling due to external pressure and refers to ASME VIII div.1 UG-28 through UG-30.
What about combination of external pressure, bending and/or longitudinal compression?
Why is there no reference to ASMEVIII div.1 UG-23?
Can any one think if a reason for this?
Does any one knows why so little guidance is provided by ASMEB31.3 for checking against buckling?
Only §302.3.1(c) seems to provide a maximum being the maximum allowable in compressions not greater than in tension as per appendix A. It is also stated that consideration shall be given to structural stability...
§304.1.3 is only for buckling due to external pressure and refers to ASME VIII div.1 UG-28 through UG-30.
What about combination of external pressure, bending and/or longitudinal compression?
Why is there no reference to ASMEVIII div.1 UG-23?
Can any one think if a reason for this?





RE: ASMEB31.3 - Buckling
RE: ASMEB31.3 - Buckling
RE: ASMEB31.3 - Buckling
How do you all check for a combination of loadings? Any reference to documents/codes which provide guidance.
RE: ASMEB31.3 - Buckling
Can any one think if a reason for this?
One is a pressure vessel code and one is a pressure piping code ?
RE: ASMEB31.3 - Buckling
RE: ASMEB31.3 - Buckling
What is the D/t of your piping system in question ?
ASME clearly states limitations on applicability .....
MJCronin
Sr. Process Engineer
RE: ASMEB31.3 - Buckling
My question was of the philosophical type...
So i don't actually have a D/t ratio.
Are you referring to ASMEB31.3 §K304.1.3?
Chapter IX is for high pressure piping and not always applicable so?
David2007,
I'm not familiar with all possibilities of Caesar, but I don't think Caesar checks buckling. Caesar normally checks against the allowable stresses in tensile and not compression...
DekDee,
Of coarse I'm aware of the fact that ASMEVIII is a vessel code and not a piping code.
The only reason of why ASMEB31.3 is not referring to ASME VIII for axial compression is that the maximum compression is probably over conservative when applying same rules to pipes with a relative small amount of imperfections...
RE: ASMEB31.3 - Buckling
The OP was discussing "Buckling" so your response is superfluous since Caesar does not consider buckling. Please only respond with valid responses. It's better to keep quiet rather than say anything!!