Re: [PipingDesign] Stress Intensity Factor, K ,

From: <segun>
Date: Sat Jan 19 2008 - 13:47:00 EST

Thanks for your advice Chris,
which good book can you recommend, because of the conflicting values used neccesitate my question.

From your comment, I should know what the answer is but a good book can be used to understand it better.

Thanks once again.

Segun Odukoya
--- Christopher Wright <chrisw@skypoint.com> wrote:

>
> On Jan 19, 2008, at 5:12 AM, segun odukoya wrote:
>
> > If I want to calculate Stress Intensity Factor, K,
> in
> > Linear Fracture Mechanics, which of the stress are
> we
> > going to use, the yield stress or the axial
> stress.
> Once again, I'm going to seem like an old fart, but
> a question like
> this means that you don't know enough about LEFM to
> use it sensibly.
> (First--fracture occurs without yielding-see what I
> mean) Read some
> basic materials on the topic and find yourself a
> textbook. The math
> isn't simple, but if you don't understand where a
> formula comes from,
> don't use it. It's like something you find in a
> bottle without a
> label. It might be water or toilet bowl cleaner, so
> you do some
> research before you take a swig.
>
> I'm certain there are plenty of good web pages on
> the topic, so search
> those out and see what you're getting into. Then
> find yourself a
> textbook which shows you how to use the relationship
>
> Christopher Wright P.E. |"They couldn't hit an
> elephant at
> chrisw@skypoint.com | this distance" (last words
> of Gen.
> .......................................| John
> Sedgwick, Spotsylvania
> 1864)
> http://www.skypoint.com/~chrisw/
>
>
>
>
      

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