Pressure Vessel Code Book 2

[Crusader911]

I'm a pipe stress engineer, but I often have to deal with stresses on nozzles, clips, et cetera. I am not up-to-date on the latest ASME BPVC Section VIII. I have access to the code itself, but I don't know if reading hundreds of pages is the best use of my time when I am not in the business of designing pressure vessels. What I mainly want to know is how the latest edition of the code calculates stress and determines allowables and what are the various code cases. Can anyone recommend a good reference book?

 

[metengr]

Yes, you should either obtain a copy of Section II of the ASME B&PV Code (an older copy would work) to review the introduction and nonmandatory appendices OR there are companion guide books available that provide a summary of various parts of ASME B&PV Code. You want Section II.

https://www.google.com/search?hl=en...rfai=C4yuznV38S7SbOpj2MvaGlb4MAAAAqgQFT9BdxEM

Code Cases are a different matter and are associated with specific code book sections.

 

[Crompto29]

If you are most interested in stresses caused by loads on nozzles or support pads etc, ASME VIII div 1 doesn't address them. However it does refer you to WRC 107.

I have never been able to get my head around WRC 107, but PD 5500 Appendix G is similar and has some good expanations of the theory and examples showing what the calculations do.

ASME VIII Div 2 Part 5 gives you the procedure to for FEA but you learn little in the way of back ground theory or explanations. You have to already be competant at FEA to fully understand it.

 

[MJCronin]

Consider the purchae and use of NozzlePro....

http://www.paulin.com/NozzlePRO.aspx

Good for casual nozzle evaluation... covers WRC 107/297

-MJC

 

[TGS4]

MJCronin, I respectfully disagree with your recommendation. If you don't know and understand the basis for such a stress analysis (as in Nozzlepro or any other FEA-based solution), you're in for a world of trouble. Better to understand the fundamentals in the WRC bulletins (107/297/etc) first. After that, proceed to the "Criteria Document" of the old Div 2. Then follow on to WRC 479. Then proceed to the new Div 2. Read a whole bunch of papers by the likes of Hechmer, Hollinger, Porter, Seipp, etc. That would be considered a good start.

Stay away from a do-it-yourself FEA (or worse, a black-box FEA) until you understand all of the above. Otherwise, you're more dangerous than not, because you think you know what you're doing, and you really don't.

 

[Crusader911]

I have been using Paulin Research Group's products for over three years, and I have attended their training classes. I am beginning to train my department on using the software. I agree wholeheartedly that FEA should not be done lightly or without thorough understanding.

What I'm trying to do now is to learn all about how the BPV calculates stresses and what exactly all the code cases mean. When I use Caesar II, I know exactly what's going on under the hood and could reproduce the stress calculations by hand. I don't have that level of understanding with BPV code calculations.

 

[TGS4]

Crusader911 - if it is a better understanding of the stress analysis/calculations that you are looking for, then your first stop should be the "Criteria Document" of the old Div. 2. It's not necessarily current for the new Div. 2, but it shows what the different failure modes are and how they are managed. Let us know if you cannot find a copy of it - I'm sure that we can figure something out. It's out of print, and I only have a copy of a copy... Ask around your office, or come back here.

 

[Crusader911]

TGS4,

Can you be more specific? I have access to every edition of the code back to 1989. Is there something that is called, "Criteria Document" or is it contained in a part or appendix?

 

[TGS4]

It's not in the Code. The title is "Criteria of the ASME Boiler and Pressure Vessel Code For Design By Analysis In Section III and VIII, Division 2". It came out around the time that Division 2 was first published - maybe late '60's. It replaces a document that was published in 1964.

 

[Crusader911]

Excellent. I have one person here to ask, and I can also search the office of a dear departed friend.

 

[jte]

The old "Criteria" document is not out of print! But it has morphed. If you buy PTB-1 (the new Criteria), you'll find that the old 1968 era Criteria document is included as an appendix.

http://catalog.asme.org/Codes/PrintBook/PTB1_2009_Section_VIII.cfm

jt

 

[MJCronin]

TGS4.....

Your point is well taken...don't use the tool unless you understand it's development. Must understand the development...Can't argue with that.

But I did use the word "consider"...

If you are evaluating a few nozzles per year....stick with the source documents.

If your MBA boss has contracted for the analysis of hundreds of systems, with even more nozzles than systems.....and he wants to use a rectal thermometer to recruit people off the street to "help" you

...and its all due in les than a month.

Automated tools start to look pretty good.

-MJC

 

[Crusader911]

This is starting to look like my search for Kellog's "Design of Piping Systems". It only took me four years to get a copy. The PTB-1 document looks good, if I can get the company to buy it.

 

[LSThill]

Crusader911 (Mechanical)

what edution are looking for:

MWK-1941 Kellog's "Design of Piping Systems".??

MKW-1956 Kellog's "Design of Piping Systems".??

 

[Crusader911]

Thanks LSThill, but I obtained a copy of Kellogg's a couple of months ago.

 

[LSThill]

Crusader911 (Mechanical)

Which edution of Kellog's "Design of Piping Systems" did you have??

 

[DSB123]

LSThill,
Can you clarify what an edution is??

 

[curtis2004]

Hi there,
I heard couple of times about Kellogg's Piping Design Handbook. I asked other people but nobody knows about it. Can anyone explain me what is this magic book and where can I get a copy of it?
Thank you,

 

[Crusader911]

Not magic, but it was spoken of with such reverance on this and other forums that I had to see for myself. I would now recommend Peng's "Pipe Stress Engineering" over the Kellogg book. Both can be found on Amazon or the like, as Kellogg's book is recently back in print for around $25.

 

[curtis2004]

Hi All,
I would like to know your opinion about the following book:
Introduction to Pipe Stress Analysis by Sam Kannappan. If I'm buying Peng's book with Kelloggs book does it worth to spent $70 to buy Pipe Stress Analysis by Sam Kannappan.
Thank you,

Curtis