Folks,
I'm trying to find a source that would describe how to axisymmetrically model a flanged joint. Specifically, I have always made an equivalent plane strain "bolt" by matching both the cross sectional areas and the moments of inertia for a single stud (bolt) and the equivalent axisymmetric...
Okay, a while back I asked about how to create a thread (or spring) helical pattern in CAE. Duh, of course the answer was to specify a pitch when rotating a sketch to create a solid.
Now to the next level, I want to create a small section of tapered thread. This means that I have to model a...
Just wondering if anyone out there knows where the equation for the triaxial strain limit in the new S8D2 5.3.3 comes from? It is also in the new API 579. Specifically I am looking for a derivation of the equation so as to determine how the m_2 and alpha_sl coefficients come from.
el=elu x...
I am trying to find a range of values for film coefficients on the internal of an 8" pipe. Problem is, I don't (as yet) have much info on the fluid other than it is mixed hydrocarbons, ~950°F, with a flow rate in the range of 147000 lbs/hr.
I just don't have a good feel for what the range of...
Okay, before I get in trouble, I know that there are a couple of threads out there on this topic...but as yet I am not satisfied. I am trying to analyze a nozzle (specifically the nozzle wall) using the 2007 ASME section 8 div 2 (S8D2) analysis.
First of all, my nozzle configuration is made up...
A co-worker and I were discussing a specification for hydrotests of piping and pressure vessels. While there is a lot of information on temperature limitations during a hydro (to avoid brittle fracture, etc), I can't find anything that provides guidance on pressurization rates. For example, if...
I am stretching my memory on heat transfer from university...but I am trying to figure out how long it would take to heat up a pressure vessel (the steel) to steady state.
The vessel is refractory lined and I have all the conductivities, surface films, etc. I know that I have to use the...
I am looking at a repair on a high pressure high temperature separator vessel (2 1/4Cr base material ~ 6.75" thick, with 309/347ss overlay ~ 0.3" thick). The repair that we are considering would leave a small "void" in the behind the overlay as we plan to weld a small patch to the surrounding...
When dealing with liquid sizing for a control valve, what is really meant by choked flow? Sorry if this sounds like a dumb question...but here is where I am coming from:
I have a case where I am trying to size a new control arrangement (control valve and orifice plates, etc) for the problem...
I am working on a failure investigation of a control valve in my plant. The valve type is a Fisher 461 Sweep Flow Valve. The valve has been cavitating badly and has caused damage to the valve and downstream piping.
What I want to do is to determine at what feed conditions (rate, upstream...
Does anyone have or know of good software (free for trial) or even excel sheets for completing an analysis of Tank foundation settlement. I have tried myself and I am not happy with how my curve fitting is going (optimum cosine curve, Appendix B).
Thanks in advance
