[Wien] About material breaking

[Muhammad Sajjad]

Dear Oleg and Marks
Thank you for your quick reply. Sorry for late, I was away for two days.
@Oleg:
Yes I mean ultimate material strength. The sent paper is quite helping. In
FIG. 2., stress-strain curve is drawn. We know applied strain but how can
we measure stress (F/A). Ok A is known but What is F? Simply how to get
stress value?

On Thu, Nov 26, 2015 at 6:39 PM, Oleg Rubel <orubel at lakeheadu.ca> wrote:

> Do you mean the ultimate material strength when you refer to "breaking
> point”?
>
> Straightforward calculations (like this one
> http://arxiv.org/pdf/1303.7259v1.pdf) are possible, but the obtained
> result will be orders (!) of magnitude higher than any practical values.
> The reason is that it is hard to capture mechanisms of materials plasticity
> at such a small scale.
>
> Oleg
>
> > On Nov 26, 2015, at 02:35, Muhammad Sajjad <sajjadpu at gmail.com> wrote:
> >
> > Dear All
> > Can we use WIEN2K fto know about breaking point of material?  I know to
> calculate phonon spectrum  (using phonopy) for the stability of material
> but not breaking. Also some information from elastic constant (like C11 =
> Young Mod.).
> >
> > --
> > Kind Regards
> > Muhammad Sajjad
> > Post Doctoral Fellow
> > KAUST, KSA.
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-- 
Kind Regards
Muhammad Sajjad
Post Doctoral Fellow
KAUST, KSA.
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