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?
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...
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...
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...
I have been involved in pipe stress analysis for several years in process industries and have used CAESAR as a design tool, and ASME B31.3 as the design code. However, I have come across some calculations for large diameter (1500mm to 3200mm Diam) piping in the Iron & Steel industry, Blast...
I have a client who does not use 'normal' gaskets on his flanges, but applies WEVOPAT instead to the faces. Has anybody ever heard of this or know anything about it, or could point me in the right direction to find out anything about it. I get the impression it is a paste/sealant, and WEVOPAT is...
Is there anywhere on the web where I can find Fracture Toughness data for pressure vessel steels such as BS EN10028 P355, or structural steels such as BS EN10025 S275 Etc?
We have been carrying out some fracture mechanics work based on Charpy values, and have been asked not to use the...
Branch connections to ASME B31.3
In section 304.3.3 the length of branch available for reinforcement (L4) is determined from two formulae and the lesser of the two is used.
In my problem, this value is 1000mm.
However, if there is a flanged connection only 500mm along the length of the branch...
I have a drawing which specifies the following items;-
1) BS 970 080 M40 Pin
2) BS 1574 Split pin
Our client is in the USA and wants the US equivalents to these. I have searched the internet for a while and have been pretty unsuccesful so far.
Any ideas??
I have a drawing of a German Plant from 1976 where the material of construction is ALDUR 41DG.
Does anybody have an equivalent for this material or alternatively its' yield and UTS values??
I have been asked to investigate the effects of certain types of scale deposit on the inside of Monel pipes used for cooling. Can anybody tell me if Monel pipes are available "off the shelf" and if so where I can find a detailed list of diameters and thicknesses that I can use??
