[GiDlist] Contact creation

Moderator: GiD Team

Arturo di Gioia

[GiDlist] Contact creation

Postby Arturo di Gioia » Mon Dec 09, 2002 10:53 am

Hi,
I'm trying to create a FEM mesh with GiD. I've got two volumes and I'd
like to duplicate the nodes at the interface (thus generating two meshes
with coincident surface mesh at the contact surface). In order to do it
I:
1) Duplicated the surfaces shared by the two bodies, using in 'copy'
command the options 'duplicate' and 'create contact'.
2) I defined the volumes of the two bodies using for each one different
surfaces.
3) I would like to mesh the bodies with quadratic tethraedra elements.

My questions are:
What is a 'contact volume'? I'm sorry, but reading the documentation
i've not be able to figure out what could it be. I read that this volume
can be meshed only with linear elements. Do normal volumes defined using
at least one surface with contact flag automatically become a contact
volume? I read also that it is possible not to mesh contact volumes. How
do I achieve this? I found no commands about contact meshes.

Thanks.


--
Arturo di Gioia

Address:
Dipartimento di Ingegneria Meccanica e Strutturale
Universita' degli Studi di Trento
v. Mesiano 77
38100 Trento
ITALY

tel (office) : +39 0461882525
tel (personal): +39 3489118982
web:
http://www.ing.unitn.it/~digioia/
PGP public key:
http://www.ing.unitn.it/~digioia/files/adg_gpg_pub.asc
Ramon Ribó

[GiDlist] Contact creation

Postby Ramon Ribó » Mon Dec 09, 2002 11:29 am

Hello,

The contact entity that joins the two volumes, the one created
when used 'copy' with 'duplicate' and 'create contact', is considered
by GiD as a Volume. In this way, it is possible to use the normal
GiD commands to operate on it. You can use:

Meshing-Elemtype-...
Meshing-Mesh criteria-...

and select this volume.

So, your model should have 3 volumes instead of just 2.

The only problem here for you is that the contact volumes do
not support quadratic elements.

Best regards,

--
Compass Ing. y Sistemas Dr. Ramon Ribó
http://www.compassis.com ramsan at compassis.com
c/ Manuel Girona, 61 bajos tel. +34 93 204 10 82
08034 Barcelona, Spain fax. +34 93 204 19 09

-----Mensaje original-----
De: gidlist-admin at gatxan.cimne.upc.es
[mailto:gidlist-admin at gatxan.cimne.upc.es]En nombre de Arturo di Gioia
Enviado el: lunes, 09 de diciembre de 2002 10:54
Para: GiD_list
Asunto: [GiDlist] Contact creation


Hi,
I'm trying to create a FEM mesh with GiD. I've got two volumes and I'd
like to duplicate the nodes at the interface (thus generating two meshes
with coincident surface mesh at the contact surface). In order to do it
I:
1) Duplicated the surfaces shared by the two bodies, using in 'copy'
command the options 'duplicate' and 'create contact'.
2) I defined the volumes of the two bodies using for each one different
surfaces.
3) I would like to mesh the bodies with quadratic tethraedra elements.

My questions are:
What is a 'contact volume'? I'm sorry, but reading the documentation
i've not be able to figure out what could it be. I read that this volume
can be meshed only with linear elements. Do normal volumes defined using
at least one surface with contact flag automatically become a contact
volume? I read also that it is possible not to mesh contact volumes. How
do I achieve this? I found no commands about contact meshes.

Thanks.


--
Arturo di Gioia

Address:
Dipartimento di Ingegneria Meccanica e Strutturale
Universita' degli Studi di Trento
v. Mesiano 77
38100 Trento
ITALY

tel (office) : +39 0461882525
tel (personal): +39 3489118982
web:
http://www.ing.unitn.it/~digioia/
PGP public key:
http://www.ing.unitn.it/~digioia/files/adg_gpg_pub.asc

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GiDlist mailing list
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Enrique Escolano

[GiDlist] Contact creation

Postby Enrique Escolano » Mon Dec 09, 2002 11:58 am

See some brief explanation about the "GiD-contact" concept at:

http://gid.cimne.com/pipermail/gidlist/2001/000294.html

Enrique
----- Original Message -----
From: "Arturo di Gioia" arturo.digioia at ing.unitn.it
To: "GiD_list" gidlist at gatxan.cimne.upc.es
Sent: Monday, December 09, 2002 10:54 AM
Subject: [GiDlist] Contact creation


Hi,
I'm trying to create a FEM mesh with GiD. I've got two volumes and I'd
like to duplicate the nodes at the interface (thus generating two meshes
with coincident surface mesh at the contact surface). In order to do it
I:
1) Duplicated the surfaces shared by the two bodies, using in 'copy'
command the options 'duplicate' and 'create contact'.
2) I defined the volumes of the two bodies using for each one different
surfaces.
3) I would like to mesh the bodies with quadratic tethraedra elements.

My questions are:
What is a 'contact volume'? I'm sorry, but reading the documentation
i've not be able to figure out what could it be. I read that this volume
can be meshed only with linear elements. Do normal volumes defined using
at least one surface with contact flag automatically become a contact
volume? I read also that it is possible not to mesh contact volumes. How
do I achieve this? I found no commands about contact meshes.

Thanks.


--
Arturo di Gioia

Address:
Dipartimento di Ingegneria Meccanica e Strutturale
Universita' degli Studi di Trento
v. Mesiano 77
38100 Trento
ITALY

tel (office) : +39 0461882525
tel (personal): +39 3489118982
web:
http://www.ing.unitn.it/~digioia/
PGP public key:
http://www.ing.unitn.it/~digioia/files/adg_gpg_pub.asc

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GiDlist mailing list
GiDlist at gid.cimne.upc.es
http://gid.cimne.upc.es/mailman/listinfo/gidlist


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