You can see a ProblemType tutorial to learn “How to configure GiD for a particular type of analysis” in
http://gid.cimne.upc.es/support
See also Customization on the GiD Manual (yoy can see the online version located in support)
In GiD Plus (Gid+) you can download some analysis codes, and you can see the problemtype files as samples.
Here is a small problemtype for example:
Create a directory “name”.gid in the directory gid/problemtypes an
create inside these files: *.cnd, *.bas and *.prb
Sample file “name”.cnd
NUMBER: 1 CONDITION: Source
CONDTYPE: over surfaces
CONDMESHTYPE: over elems
QUESTION: ID:#CB#(1,2,3,4,5,6,7,8,9,10)
VALUE: 1
QUESTION: Friction_coeff
VALUE: 0.0
END CONDITION
NUMBER: 2 CONDITION: Target
CONDTYPE: over surfaces
CONDMESHTYPE: over elems
QUESTION: ID:#CB#(1,2,3,4,5,6,7,8,9,10)
VALUE: 1
END CONDITION
Sample file “name”.bas
*Set Cond Source *elems *CanRepeat
*Loop elems *OnlyInCond
ELEM=*elemsnum ID=*Cond(ID,int) COEF=*Cond(Friction_coeff,real)
*end elems
*Set Cond Target *elems *CanRepeat
*Loop elems *OnlyInCond
ELEM=*elemsnum ID=*Cond(ID,int)
*end elems
Sample file “name”.prb (required for any problem type)
PROBLEM DATA
QUESTION:Title
VALUE:untitled
END PROBLEM DATA
----- Original Message -----
From: “Pablo Perez del Castillo” pablopdc at terra.es
To: gidlist at gatxan.cimne.upc.es
Sent: Thursday, October 25, 2001 4:29 AM
Subject: Re: [ GiDlist ] contact elements
I think that is a good solution, but can i add that condition to problem type
exits?, do you known if exist similar problem type?, so i can modify it.
Thanks again.
Enrique Escolano escribió:
For GiD, a contact is only a node-to-node link. It is interpreted as a mesh
specification to create two identical meshes, and connect the nodes with
prism element (named contact elements).
Another type of contact is unkown for GiD. Usually a problem type define
conditions, for example, named “Source” and “Target” and is applied in GiD
to two families of surfaces (transferred automatically to elements or nodes
of the mesh). The condition stores the contact properties (friction, etc.)
and a ID common to Source and Target (for more than 1 contact).
I’ not know if this form to treat a contact by means of a condition adapts
to your case. It would need to know that it exactly expects of the file
input the analysis program.
----- Original Message -----
From: “Pablo Perez del Castillo” pablopdc at terra.es
To: gidlist at gatxan.cimne.upc.es
Sent: Thursday, October 25, 2001 2:54 AM
Subject: [ GiDlist ] contact elements
Hello;
Imagine, i want to study a contact between two bodies, so one body slide
over
another body, like when i push a book over table. This kind of contact, i
known
like node-surface, source contact and target contact. It is possible to
create
in GID?
thanks again
Enrique Escolano escribió:
Actually only is available the element contact prisma of 6 nodes (from
linear triangles 3 nodes) or the prisma of 8 nodes (from linear
quadrilaterals of 4 nodes).
We will study the possibility of including the quadratic case next.
The GiD Team
----- Original Message -----
From: “Aldo Ghisi” ghisi at stru.polimi.it
To: gidlist at gatxan.cimne.upc.es
Sent: Wednesday, October 24, 2001 3:50 PM
Subject: [ GiDlist ] contact elements with tetra10
Hello,
is it possible to create contact between tetra 10 nodes elements?
The GiD manual about contact volumes says that only Prisma elements
with 6
nodes (contact between tetra 4 nodes) are possible.
In GiD6.1.5b every test ends in error.
Thank you in advance and regards.
ALDO GHISI
Department of Structural Engineering
Politecnico di Milano
Piazza Leonardo da Vinci 32, 20133 Milano, Italy
Tel.: +39 02 2399 4218
Fax.: +39 02 2399 4220
E_mail: aldo.ghisi at polimi.it
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