[ GiDlist ] Contact Surface

GiDList Archive 2002 - 2000
1

Hello,

The easiest way to create a contact between two nodes is the
following:

  • Create a condition ‘master’, to be assigned to nodes, with a
    field that identifies it.
  • Create a condition ‘slaves’, to be assigned to nodes, with a
    field that identifies it.

Assign both conditions, selecting in both the same identifier.

The identifier can be either one entry field, where the user writes a
name or can be
a menu with several predefined identifiers.

In the GiD version 7, there will be new possibilities to change the
appearance of the input
widgets so as to make it easier for the user. For example, it will be
easy, with the help of
TCL-TK, to input the identifier as a combobox where it is both
possible to enter a new name
or to select an existing one.

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: owner-gid at gatxan.cimne.upc.es [mailto:owner-gid at gatxan.cimne.upc.es]En
nombre de Enrique Escolano
Enviado el: martes, 25 de septiembre de 2001 11:04
Para: gidlist at gatxan.cimne.upc.es
Asunto: Re: [ GiDlist ] Contact Surface


The “line-contact” (to create a union degenerated between two points) is
not implemented in GiD, it is only implemented the "surface-contact ", and
the “volume-contact”.

At this moment it is necessary to use another alternative, like for
example:

  • Create a line (of null length) between points, and assign some condition
    to him to distinguish it
    (Note: if “collapse” is used it destroys this line).
  • Or create a condition with thwo fields: the number of the two nodes (The
    user must write the numbers manually, and if renumber or remesh this
    information remain obsolete).

In the future will be added the option "Line-Contact " directly inside
GiD.

----- Original Message -----
From: Changho
To: gidlist at gatxan.cimne.upc.es
Sent: Saturday, September 22, 2001 1:49 AM
Subject: [ GiDlist ] Contact Surface


Hello, all

I want to create the zero-length element for spring between two beam
element.
For example, I have two beams, first one has coordinate as (0,0) and
(10,0), and second one has those as (10,0) and (20,0). Now I want to have a
zero-length element at coordinate (10,0) for spring. Do I have any way to
create this model in GID?

thank you

~
Changho Choi
Department of Civil Engineering
Box 352700    More 132A
University of Washington               phone:    206-729-3542 (H)
Seattle    WA      98195                         206-543-6778 (O)
206-543-1543 (fax)




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2

thanks for the possible solution of my problem.

Basically I got two possible answers to create a kind of contact line.
But, I’m not sure yet about all three recommendations. Followings are
each answers from you and my additional question.

  1. Create the null line using the two nodes which have the same geometric
    location and allocate the condition to identify the null line. In this
    case, how do I create the null line? And can I allocate the material on
    the null line?

  2. Create the master and slave nodes using condition. In this case, how do
    I select the master and slave node from gid window since there are in same
    geometric location? Do I need to use layer concept for this? Or can I
    define those in *.cnd file? And Can I allocate the material to this even
    though I don’t have the physical element inside Gid. Could you please give
    me more detailed information for this case?

I appreciate your help


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Changho Choi
Department of Civil Engineering
Box 352700    More 132A
University of Washington               phone:    206-729-3542 (H)
Seattle    WA      98195                         206-543-6778 (O)
206-543-1543 (fax)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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On Tue, 25 Sep 2001, [iso-8859-1] Ramon Ribó wrote:
\
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_Hello,_
_The easiest way to create a contact between two nodes is the_
_following:_
_- Create a condition 'master', to be assigned to nodes, with a_
_field that identifies it._
_- Create a condition 'slaves', to be assigned to nodes, with a_
_field that identifies it._
_Assign both conditions, selecting in both the same identifier._
_The identifier can be either one entry field, where the user writes a_
_name or can be_
_a menu with several predefined identifiers._
_In the GiD version 7, there will be new possibilities to change the_
_appearance of the input_
_widgets so as to make it easier for the user. For example, it will be_
_easy, with the help of_
_TCL-TK, to input the identifier as a combobox where it is both_
_possible to enter a new name_
_or to select an existing one._
_Regards,_
_--_
_Compass Ing. y Sistemas      Dr. Ramon Ribó_
_http://www.compassis.com     [ramsan at compassis.com](http://listas.cimne.upc.edu/cgi-bin/mailman/listinfo/gidlist)_
_c/ Manuel Girona, 61 bajos   tel. +34 93 204 10 82_
_08034 Barcelona, Spain       fax. +34 93 204 19 09_
_-----Mensaje original-----_
_De: [owner-gid at gatxan.cimne.upc.es](http://listas.cimne.upc.edu/cgi-bin/mailman/listinfo/gidlist) [mailto:[owner-gid at gatxan.cimne.upc.es](http://listas.cimne.upc.edu/cgi-bin/mailman/listinfo/gidlist)]En_
_nombre de Enrique Escolano_
_Enviado el: martes, 25 de septiembre de 2001 11:04_
_Para: [gidlist at gatxan.cimne.upc.es](http://listas.cimne.upc.edu/cgi-bin/mailman/listinfo/gidlist)_
_Asunto: Re: [ GiDlist ] Contact Surface_

_The "line-contact" (to create a union degenerated between two points) is_
_not implemented in GiD, it is only implemented the "surface-contact ", and_
_the "volume-contact"._
_At this moment it is necessary to use another alternative, like for_
_example:_
_- Create a line (of null length) between points, and assign some condition_
_to him to distinguish it_
_(Note: if "collapse" is used it destroys this line)._
_- Or create a condition with thwo fields: the number of the two nodes (The_
_user must write the numbers manually, and if renumber or remesh this_
_information remain obsolete)._
_In the future will be added the option "Line-Contact " directly inside_
_GiD._
_----- Original Message -----_
_From: Changho_
_To: [gidlist at gatxan.cimne.upc.es](http://listas.cimne.upc.edu/cgi-bin/mailman/listinfo/gidlist)_
_Sent: Saturday, September 22, 2001 1:49 AM_
_Subject: [ GiDlist ] Contact Surface_

_Hello, all_
_I want to create the zero-length element for spring between two beam_
_element._
_For example, I have two beams, first one has coordinate as (0,0) and_
_(10,0), and second one has those as (10,0) and (20,0). Now I want to have a_
_zero-length element at coordinate (10,0) for spring. Do I have any way to_
_create this model in GID?_
_thank you_
_~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~_
_~_
_Changho Choi_
_Department of Civil Engineering_
_Box 352700    More 132A_
_University of Washington               phone:    206-729-3542 (H)_
_Seattle    WA      98195                         206-543-6778 (O)_
_206-543-1543 (fax)_
_~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~_
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