SnTMan, thanksfor your reply.
Are you saying that even if I have a calculation to size the fillet welds, and it produces a smaller fillet than UW-16 suggests, I still need to use the UW-16 size as a minimum?
Using ASME VIII Div1 - the weld sizes can be determined by using the rules on sketch (i) of Section UW-16. But is there an actual calculation method used to 'design' the weld size anywhere, as an alternative?
Shell 93 is an 8noded element and we use it as a progression from the 4noded shell63 of old.
Using shell 181 which is back to a 4noded element seemed to be a bit of a backward step, which would require a refined mesh at local features.
I am modelling thin shell cylinders in ANSYS v12.
Several years ago we used to use 4noded shell63, but changed to the 8noded version Shell93.
Now ANSYS seems to have removed shell93 from the help manual(you can still use the element type), and seems to be suggesting that shell181 are the way to...
We are currently designing a vessel using the French PV Code CODAP.
Does anybody know if the code covers Local loads on the shell from discrete attachments, because we cannot find a section that seems relevant?
I have a vertical vessel which is 8500mm in diameter, and general wall thickness of 25mm. Pressure is approx 5barg, but there is wind and siesmic acting as external loads. The calcs show the thickness to be more than adequate but client wishes to reduce the plate thickness. I can reduce some of...
Well it's a chimney, and the company has been building these for decades, as such theit company procedures are for now, set in stone. There are some other calcs I have come across where the chimney was put through a dynamic analysis in CAESAR II. But still, I would like to get to the bottom of...
I am trying to use Pressure Vessel Design manual by Denis R Moss Procedure 3-8.
The period of vibration is s formula for imperial units, and i am struggling a little with my SI units.
Does anybody have a worked example (the one in Moss is no good, there's not enough info.), either in...
Not sure dimjim, but yes the vessel is vertical, and is subjected to a combination of vertical load, horizontal shear load, as well as a BM and possibly torsion.
We use two methods, an "equivalent area" method and an eccentric load method.
Hi,
I am involved in the design of a pressure vessel which has an unpressurised skirt at its base, and is subjected to overturning moments such that the vessel/skirt has a set of holding down bolts. (PCD circa 6000mm).
We currently use methods by Dennis R Moss in " Pressure Vessel Design Manual"...
We are designing a PV to PD5500. The Vessel is for Korea where the adjoining pipework will be fitted with JIS B2210 20K flanges. Therefore we require a compatible flange to be connected to our vessel branches.
However, PD5500 section 3.8.1 allows the use of BS1560, BS4504, EN1092 and ANSI B16.5...
