Deepika,
GridGenerator has a number of functions that do similar things to what you
want to do, such as plate_with_a_hole(), channel_with_hole(), specifically
merging different triangulations for different parts of the domain. You will
want to study how they are implemented:
https://github.com/dealii/dealii/blob/master/source/grid/grid_generator.cc
In the end, it all comes down to constructing the different pieces of a mesh
separately but in a way so that the resulting vertices match, and then merging
them. Search for merge_triangulation() in the file linked to above and try to
understand the context in which it is used, say in the plate_with_a_hole()
function. If you understand what is done there, you will understand how you
can create the meshes you want to generate.
Best
W.
On 2/9/23 21:03, Deepika Kushwah wrote:
*** Caution: EXTERNAL Sender ***
Thank you for your explanation.
Is there any other way by which I can create the same geometry (Circular
inclusion in the square) ?
My project is related to "Multiscale Modeling of Failure of Composite
Materials" for that purpose I need to create a different RVE (Representative
Volume Element) for the heterogeneous material. These RVE may include one or
more circular fiber or inclusions.
How can I solve this problem with dealii?
Please see the attached example of RVE below, which I want to create in dealii.
image.png
Thanks and regards,
Deepika
On Fri, Feb 10, 2023 at 1:37 AM Wolfgang Bangerth <bange...@colostate.edu
<mailto:bange...@colostate.edu>> wrote:
On 2/9/23 11:28, Deepika Kushwah wrote:
> **
>
> I have changed the default tolerance as you suggested but the problem is
> still persisting.
> In the coarse meshing, there are only 4 points connected between the two
> triangulations and after refinement there is still the same connection.
> How can we increase the connecting points?
I see the problem now. If you count how many points there are on the
circle from the inner mesh and the outer mesh, the number is different.
These meshes *can't* be merged as you want. Merging meshes can only work
if you have the same number of vertices coming together at the interface
where you want to merge the meshes.
Best
W.
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