Dear Reza!
Actually this specific code follows
very much the general structure of deal.II tutorials.
If you want (or need) to learn this first, I always recommend
to work through the first six tutorials.
Then for vector-valued problems, step-22 is important.
For the specific solver, we made use of step-41/42.
Now for your specific questions, I would go as Wolfgang
said: if you know your crack location, then you set-up
refinement indicators there and refine the mesh there.
Local mesh refinement is explained in step-6 of the deal.II tutorials.
For the input of the geometry of different files formats
are supported:
https://www.dealii.org/8.4.0/doxygen/deal.II/classGridIn.html
Examples can be found in many deal.II tutorials steps how
they are used.
Best Thomas
++--------------------------------------------++
Dr. Thomas Wick
Research Scientist at RICAM Linz, Austria
Email: [email protected]
www: http://people.ricam.oeaw.ac.at/t.wick/
++--------------------------------------------++
--
On 06/22/2016 09:33 PM, Reza Zargar wrote:
Thanks alot for your answer. I wrote a post for you but I think it was
not posted successfully, so if you see my answer probably twice I
appoligize to you for it. I have allready read the paper that is done
in dealii and I saw the homepage that you gave me and downloaded the
code. But actually my problem is that I have to input my geometry in
dealii and refine it in my certain direction of the crack, which is
for me not clear in the paper how it has been done in the software. I
know the theory of it but how to implement it with the software is my
problem. It would be nice if you could tell me how can I do it or if I
can fine somewhere accordingly its tutorial or the way of it.Thank you.
Kind regards
Reza
Am Mittwoch, 22. Juni 2016 07:54:59 UTC+2 schrieb Thomas Wick:
Dear Reza,
there is also a deal.II gitHub "tutorial" on phase-field fracture,
which exactly addresses your questions:
https://github.com/tjhei/cracks <https://github.com/tjhei/cracks>
Best Thomas
++--------------------------------------------++
Dr. Thomas Wick
Research Scientist at RICAM Linz, Austria
Email:[email protected] <javascript:>
www:http://people.ricam.oeaw.ac.at/t.wick/
<http://people.ricam.oeaw.ac.at/t.wick/>
++--------------------------------------------++
--
On 06/22/2016 07:07 AM, [email protected] <javascript:> wrote:
Hi
1) You can use UCD or Abaqus mesh format as input.
2) The best choice in mesh refinement is phase field variable. I
have used phase field as control variable. Loop over cells and
check the phase field variable in the cells. If phase field
variable was greater than a limit then refine the cell. In
addition you can use energy.
Best,
H.
On Tuesday, June 21, 2016 at 11:23:07 PM UTC+4:30, Reza Zargar
wrote:
Dear all,
currently I do my master thesis and firstly I have to do
adaptive mesh refinement for a brittle fracture in 2D using a
phase-field approach but with my own geometry. I would like
to ask you how can I input my geometry in dealii-8.4.1, which
version I use and how can I command that only the area has to
be refined, which is cracked. I have seen the second one in
step-12 but I could not find out how can I change the
geometry and the crack direction on it. I took a look at the
FAQ, the tutorials and the videos too but unfortunately could
not find the answer which I need. Thank you in advance for
your answer.
Best regards
Reza
--
The deal.II project is located at http://www.dealii.org/
For mailing list/forum options, see
https://groups.google.com/d/forum/dealii?hl=en
<https://groups.google.com/d/forum/dealii?hl=en>
---
You received this message because you are subscribed to the
Google Groups "deal.II User Group" group.
To unsubscribe from this group and stop receiving emails from it,
send an email to [email protected] <javascript:>.
For more options, visit https://groups.google.com/d/optout
<https://groups.google.com/d/optout>.
--
The deal.II project is located at http://www.dealii.org/
For mailing list/forum options, see
https://groups.google.com/d/forum/dealii?hl=en
---
You received this message because you are subscribed to the Google Groups "deal.II User Group" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
For more options, visit https://groups.google.com/d/optout.
