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#1 2022-03-21 19:37:47

jacob
Member
From: Dolní Benešov
Registered: 2022-03-07
Posts: 64

Semi-coherent meshed part

Hello,
how would one mesh a multi-body part with shared nodes, but exclude some adjacent faces from the meshing algorithm?

For example I wanna have common nodes between weld but not between sheets.

Thank you

Attachments:
weld_part.png, Size: 7.45 KiB, Downloads: 81

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#2 2022-03-21 22:03:45

miib
Member
From: 500 km by Rome
Registered: 2021-03-23
Posts: 206

Re: Semi-coherent meshed part

yes via code_aster using liasion_mail is possible :-)

Attachments:
yes is possible.zip, Size: 479.04 KiB, Downloads: 98

I ever used code_aster for study.
Code_Aster ??? is the Novacula Occami of the FEM world.
“Non è bene cercare di fermare il progresso della conoscenza. L'ignoranza non è mai meglio della conoscenza.” Enrico Fermi.

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#3 2022-03-22 07:33:19

jacob
Member
From: Dolní Benešov
Registered: 2022-03-07
Posts: 64

Re: Semi-coherent meshed part

liasion_mail creates just "bonded contact" between parts. I want to have common nodes.

Attachments:
shared topolgy on weld.jpg, Size: 150.69 KiB, Downloads: 72

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#4 2022-03-22 15:42:29

dezsit
Member
Registered: 2012-06-27
Posts: 69
Website

Re: Semi-coherent meshed part

Hi,

Assuming you are using Salome, just partitioning your geom,
mesh it as one whole (this makes fully conformal mesh on all internal faces of the partitioned geometry),
then use the Duplicate Nodes or/and Elements from the menu Modification->Transformation.
Either the 1st or the 4th option could work, but require different preparation (grouping) and post treatment (re-merging of some nodes).

This process will result fully identical element shapes and node location on the both sides of your interface, but with duplicated nodes! The rest of your mesh is fully merged.

BR.
dezsit

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#5 2022-03-22 19:19:46

miib
Member
From: 500 km by Rome
Registered: 2021-03-23
Posts: 206

Re: Semi-coherent meshed part

like this ??? :-)

Attachments:
saldatura.png, Size: 479.7 KiB, Downloads: 66

I ever used code_aster for study.
Code_Aster ??? is the Novacula Occami of the FEM world.
“Non è bene cercare di fermare il progresso della conoscenza. L'ignoranza non è mai meglio della conoscenza.” Enrico Fermi.

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#6 2022-03-22 23:18:12

jacob
Member
From: Dolní Benešov
Registered: 2022-03-07
Posts: 64

Re: Semi-coherent meshed part

Yes. Could you upload hdf?

However I guess I solved it by using groups and node merge.
Groups are working quite well in salome so far.

Last edited by jacob (2022-03-22 23:21:37)

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#7 2022-03-23 10:08:14

jacob
Member
From: Dolní Benešov
Registered: 2022-03-07
Posts: 64

Re: Semi-coherent meshed part

figure

Attachments:
weld hex.jpg, Size: 72.34 KiB, Downloads: 79

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#8 2022-03-23 10:31:37

jacob
Member
From: Dolní Benešov
Registered: 2022-03-07
Posts: 64

Re: Semi-coherent meshed part

rar

Attachments:
weld_hex_2.rar, Size: 79.35 KiB, Downloads: 79

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#9 2022-03-23 20:07:53

miib
Member
From: 500 km by Rome
Registered: 2021-03-23
Posts: 206

Re: Semi-coherent meshed part

rar

Attachments:
Esercizio_semi_serio_sulla_vrifica_a fatica_di _una_saldatura_quello_serio_l_ho_fatto_al_lavoro.rar, Size: 237.82 KiB, Downloads: 74

I ever used code_aster for study.
Code_Aster ??? is the Novacula Occami of the FEM world.
“Non è bene cercare di fermare il progresso della conoscenza. L'ignoranza non è mai meglio della conoscenza.” Enrico Fermi.

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