Contact
13 years 2 months ago #6161
by tolivari
Contact was created by tolivari
Hello ! : )
I try to simulate a bi-material wall (earh and concrete) :
the earth is under the concrete... I try to see the stress applicated on the wall (first only gravity)...
I don't understand realy how to use DEFI_CONTACT in code_aster...
I try to use a tutorials of CLAWS on LIASON MAIL... but I don't succeed too !!
Anyone has an idea?
thx a lot!
I try to simulate a bi-material wall (earh and concrete) :
the earth is under the concrete... I try to see the stress applicated on the wall (first only gravity)...
I don't understand realy how to use DEFI_CONTACT in code_aster...
I try to use a tutorials of CLAWS on LIASON MAIL... but I don't succeed too !!
Anyone has an idea?
thx a lot!
13 years 2 months ago #6162
by Claus
Code_Aster release : STA11.4 on OpenSUSE 12.3 64 bits - EDF/Intel version
Replied by Claus on topic Re: Contact
the .mess file and a sketch / mesh of the problem would be more relevant 
/C
/C
Code_Aster release : STA11.4 on OpenSUSE 12.3 64 bits - EDF/Intel version
13 years 2 months ago #6164
by tolivari
Replied by tolivari on topic Re: Contact
you know it's an example here... 
I try to "LIAISON MAIL" the meshes of the concrete and the earth... but I haven't great results! (like in your tuto)
So, today, I'll try again, and if it doesn't sound good, I'll post all the files!
thanks!
I try to "LIAISON MAIL" the meshes of the concrete and the earth... but I haven't great results! (like in your tuto)
So, today, I'll try again, and if it doesn't sound good, I'll post all the files!
thanks!
13 years 2 months ago #6168
by tolivari
Replied by tolivari on topic Re: Contact
I try "LIAISON_MAIL" as in the tutorial made by claws (thanks for the tuto dude!! 
)
but it doesn't work!!
I put both wall in earth... for a try ! and I haven't got great results...
I try today tu use DEFI_CONTACT but it's not relevant for now...
any help?
)but it doesn't work!!
I put both wall in earth... for a try ! and I haven't got great results...
I try today tu use DEFI_CONTACT but it's not relevant for now...
any help?
13 years 2 months ago #6169
by Claus
Code_Aster release : STA11.4 on OpenSUSE 12.3 64 bits - EDF/Intel version
Replied by Claus on topic Re: Contact
Hate to disappoint, but you get a EXECUTION_CODE_ASTER_EXIT_3699-dge-desktop=0 which means the simulation actually completed without errors
There are alarms however. According to the alarms, DEGE_ELNO, EFGE_ELNO fields are not available for this type of finite element (3D). DEGE I don't know, but EFGE is for 1D objects I believe?
Furthermore, you're trying to calculate node-fields (NOEU) which do not have a corresponding element (ELNO) field. If you want to calculate the EFCA_NOEU field, you must calculate EFCA_ELNO beforehand.
There are a few exceptions (FORC_NODA/REAC_NODA etc.) which do not require the same field to be calculated in CALC_ELEM.
I know there are several examples of civil engineering (concrete, dams, tunnel excavation etc) both in the validation cases and on the forum, so dig 'em up
Hopes this gets you a little further.
/C
There are alarms however. According to the alarms, DEGE_ELNO, EFGE_ELNO fields are not available for this type of finite element (3D). DEGE I don't know, but EFGE is for 1D objects I believe?
Furthermore, you're trying to calculate node-fields (NOEU) which do not have a corresponding element (ELNO) field. If you want to calculate the EFCA_NOEU field, you must calculate EFCA_ELNO beforehand.
There are a few exceptions (FORC_NODA/REAC_NODA etc.) which do not require the same field to be calculated in CALC_ELEM.
I know there are several examples of civil engineering (concrete, dams, tunnel excavation etc) both in the validation cases and on the forum, so dig 'em up
Hopes this gets you a little further.
/C
Code_Aster release : STA11.4 on OpenSUSE 12.3 64 bits - EDF/Intel version
13 years 2 months ago #6170
by tolivari
Replied by tolivari on topic Re: Contact
it wasn't the good .comm... and .mess too! 
but, ALARM doesn't bother me!
I've found a thing : Salome put a high coefficient for showing the results... so the displacement is overevaluate in the images!!! What I think was an error... wasn't!!!
SO, I'll try to see your other examples... I try to simulate contact between two (or more) materials... what do you think about?
Thanks for the response!
but, ALARM doesn't bother me!
I've found a thing : Salome put a high coefficient for showing the results... so the displacement is overevaluate in the images!!! What I think was an error... wasn't!!!
SO, I'll try to see your other examples... I try to simulate contact between two (or more) materials... what do you think about?
Thanks for the response!
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