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#1 2016-02-01 23:52:15
[Solved] Very strange Error in Mechanical Analysis
I am modelling a panel with 3D and 2D (DKT) parts under flexion, but on my AFFE_CHR_MECA I get this error, originally I thought it was some missing constraints of my model in my DDL_IMPO but now I am sure I have restricted everything.
this is the message:
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
! <S> Exception utilisateur levee mais pas interceptee. !
! Les bases sont fermees. !
! Type de l'exception : error !
! !
! Objet JEVEUX inexistant dans les bases ouvertes : >7????.MODELE .LGRF< !
! l'objet n'a pas été créé ou il a été détruit !
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
The Salome Study:
https://drive.google.com/file/d/0B3df_K … sp=sharing
The Command File:
https://drive.google.com/file/d/0B3df_K … sp=sharing
The Mess File:
https://drive.google.com/file/d/0B3df_K … sp=sharing
Last edited by Humberto (2016-02-19 18:41:25)
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#2 2016-02-02 07:39:01
- jeanpierreaubry
- Guru
- From: nantes (france)
- Registered: 2009-03-12
- Posts: 4,047
Re: [Solved] Very strange Error in Mechanical Analysis
hello
what about adding MODELE=mode, in Ldg?
and
adding the group Load in the 3D AFFE_MODELE?
jean pierre aubry
consider reading my book
freely available here https://framabook.org/beginning-with-code_aster/
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#4 2016-02-06 07:23:58
- jeanpierreaubry
- Guru
- From: nantes (france)
- Registered: 2009-03-12
- Posts: 4,047
Re: [Solved] Very strange Error in Mechanical Analysis
Thanks Jean, that made it!never mind
did you look at the results?
they look very strange to me
I do not know how to mark the thread as [SOLVED]go in the originla post click on edit and add [SOLVED] in the title
consider reading my book
freely available here https://framabook.org/beginning-with-code_aster/
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#5 2016-02-19 18:45:29
Re: [Solved] Very strange Error in Mechanical Analysis
jeanpierreaubry wrote:
never mind
did you look at the results?
they look very strange to me
Apparently the DKT elements are not contributing to the section resistance, they show no stress and on the deformed shape they stay on their place, I don't understand why, as they are sharing the same nodes as the 3D mesh.
I thought that writing a LIAISON constraint is only needed if there are master and slave nodes, here the nodes defining the 3D volumes and the 2D faces are the same, any ideas?
Humberto
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#6 2016-02-22 09:13:55
- jeanpierreaubry
- Guru
- From: nantes (france)
- Registered: 2009-03-12
- Posts: 4,047
Re: [Solved] Very strange Error in Mechanical Analysis
I don't understand why, as they are sharing the same nodes as the 3D mesh.
no!
in between the steel and the foam
there is a layer a volume elements that belong to the mesh but not to the model
look at the attached pic
Last edited by jeanpierreaubry (2016-02-22 09:14:36)
consider reading my book
freely available here https://framabook.org/beginning-with-code_aster/
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#7 2016-02-23 17:39:43
Re: [Solved] Very strange Error in Mechanical Analysis
You are right! The problem was that the hexahedron i,j,k meshing algorithm was having a problem and did not make that part, I changed the mesh and now everything works Ok, with expected results.
Thank you so much for your help.
If anyone is interested in the final mesh and comm file, let me know and will gladly post them.
Humberto.
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