Hello,
I have a question regarding a shell calculation. Why is code using different formulas if it is outside or inside diameter?
If long. stress formula is Sl=P*Rm/2t, why is code using P*(Ri-0.4*t)/2*E*t.
Or if Circ Stress is Sc=P*Rm/t why it is used P*(Ri+0.6t)/E*t
Why is, for the...
I have a question regarding a shell calculation. Why is code using different formulas if it is outside or inside diameter?
If long. stress formula is Sl=P*Rm/2t, why is code using P*(Ri-0.4*t)/2*E*t.
Or if Circ Stress is Sc=P*Rm/t why it is used P*(Ri+0.6t)/E*t
Why is, for the longitudinal...
We have a 3/4" thk plate that we are rolling to 16" OD. material is SS 304. Per UHA 44 and strain is about 5%, and UHA 44 table is listing 304 material to be good up to 20% of strain.
Everything looks OK, however, my problem is design temperature of 250°C. UHA-44 table is referring to...
I have a configuration similar to vertical vessel with skirt. My problem is floor load distribution. I need to provide a base that will have sufficient area for load distribution. My problem is to determine how far beyond vessel OD base ring can project? Is there a method to calculate area that...
There is something that I would like to ask: Is there a Hydrostatic pressure present in closed system (filled with liquid) if pressure pumped into system is higher than static head? My answer would be that as long as we are within gravity field there must be static head present. Some of my...
Material SA-484-303 is not lited in B31.3
What are the bases for the design stresses calculation?
Only thing that I have is MTR with Tensile and Yield at room temp. My design condition is 150°F.
Any help is welcome.
Thanks
I am doing a calcs for a Threaded pipe cap on the Section III cl 2 vessel. Pipe cap is machined from a bar material and have a NPTF thread.
If I am calculating head thickness per ND3325.2, is it required to do a thread shear stress calcs, or it is enough to address ND-3361.3 requirements for...
