mgsh import problem with order 2

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LJacq
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mgsh import problem with order 2

Post by LJacq »

Hi,

I'm a new user of Elmer and gmsh and try, as exercice, to reproduce the beam3D.grd on gmsh and import it on Elmer.
It's finally (almost) working. I can import my beam correctly meshed into Elmer. The problem arrives when i click on "set order 2". Gmsh does it correctly (as i can see in console) but when i try to import my new beam into Elmer, I have a crash message (ElmerGUI has encounterd a problem and ...).
Can someone help me solve this problem?
Thx in advance
raback
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Re: mgsh import problem with order 2

Post by raback »

Hi

Does it translate correctly on the command line?

Code: Select all

>ElmerGrid 14 2 mymesh.msh 
Then open directory mymesh in ElmerGUI.

-Peter
LJacq
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Post by LJacq »

Actually, it still not working but I now have a explication:

Elmergrid loading data:
--------------------------
Format chosen using the first line: $MeshFormat
Loading mesh in Gmsh format 2.0 from test.msh
Allocating for 77531 knots and 11968 elements.
MAking elements to boundary conditions
Leading bulk elementtype is 827
Trailing bulk elmenttype is 101
There are 2968 <out fo 11968> lower dimensional elements
Node 10803 belongs to maximum of 8 elements


Does it mean smthg to you?
raback
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Re: mgsh import problem with order 2

Post by raback »

Ok, try with

Code: Select all

>ElmerGrid 14 2 mymesh.msh -autoclean
LJacq
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Re: mgsh import problem with order 2

Post by LJacq »

If i Applied this command on my meshed structure with elements of order 2, i have a crash message during the process ...
And if i use the command
ElmerGrid 14 2 test.msh -increase -out alwaystest
on the first order beam, it changes absolutely nothing on my calculations or i can't load my mesh by the command open mesh and seecting the folder alwaystest.

I can precise too that it's well working if don't use the hexaedric mesh (and so if I'm not writing Recombine in file defining the structure). But in the samples, the beam is made with second order hewaedric elements. Why can't i do the same?
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