[GiDlist] Surface connectivity

Moderator: GiD Team

Post Reply
Asteroide

[GiDlist] Surface connectivity

Post by Asteroide »

Another question...

If I generate a mesh on a volume, I usually export volume connectivity to a text file. What should I do if I want to export surface (triangle) connectivity also in the same export file?

Alexandre Forest, B. Eng
École de technologie supérieure
Montréal, QC
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://listas.cimne.upc.edu/pipermail/gidlist/attachments/20020814/30585ba5/attachment.htm
Shuo Ma

[GiDlist] bas file for contact problems

Post by Shuo Ma »

Hello everyone,

I am sorry I am sending this e-mail again.

Recently I am trying to use Gid to mesh contact problems. But I don't know
how to write the condition and bas files for the contact condition. What I
mainly want to get is the node numbers of node pairs on the contact surface in
the calculation file. Can anyone help?

Thanks in advance,
Shuo Ma
Enrique Escolano

[GiDlist] bas file for contact problems

Post by Enrique Escolano »

You can define a spectial condition to be assigned to the contact surface,
and to be transferred over body elems (not over nodes)

NUMBER: 1 CONDITION: Surface_Contact
CONDTYPE: over surfaces
CONDMESHTYPE: over body elems
QUESTION: Friction_Coef
VALUE: 0.0
HELP: Friction coefficient value
...
END CONDITION

And then inside the bas file use a loop over the elements with this condition:
Example:

...
*set cond Surface_Contact *elems
*loop elems *OnlyInCond
Friction coef: *cond(Friction_Coef,real) Nodes: *ElemsConec
*end elems
...

Regards
Enrique Escolano

----- Original Message -----
From: "Shuo Ma" sma at quake.crustal.ucsb.edu
To: gidlist at gatxan.cimne.upc.es
Sent: Friday, August 16, 2002 12:53 AM
Subject: [GiDlist] bas file for contact problems


Hello everyone,

I am sorry I am sending this e-mail again.

Recently I am trying to use Gid to mesh contact problems. But I don't know
how to write the condition and bas files for the contact condition. What I
mainly want to get is the node numbers of node pairs on the contact surface in
the calculation file. Can anyone help?

Thanks in advance,
Shuo Ma

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

-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://listas.cimne.upc.edu/pipermail/gidlist/attachments/20020828/a11f2bc6/attachment.htm
Enrique Escolano

[GiDlist] Surface connectivity

Post by Enrique Escolano »

It is possible to create the contour mesh of the current mesh (ex. boundary triangles from tetrahedras) with
Meshing CreateBoundary (only available from the command line or right buttons, hidden by default)
and then write this triangle elements.
It is also possible to force to mesh the volume tetrahedras, and also the triangles of the boundary surfaces
(Meshing-Mesh Criteria-Mesh-Surfaces) and select the desired surfaces

It is also available to define a condition to be assigned in geometry over surfaces, and transferred in mesh over face elems,
named for example MarkFaces, then apply this condition over the boundary surfaces, generate the mesh (only tetrahedras, not triangles), and write the nodes of the boundary faces with this condition with *globalnodes

*set cond MarkFaces *elems
*loop elems onlyincondition
*globalnodes
*end elems

Enrique Escolano

----- Original Message -----
From: Asteroide
To: gidlist at gatxan.cimne.upc.es
Sent: Wednesday, August 14, 2002 10:22 PM
Subject: [GiDlist] Surface connectivity


Another question...

If I generate a mesh on a volume, I usually export volume connectivity to a text file. What should I do if I want to export surface (triangle) connectivity also in the same export file?

Alexandre Forest, B. Eng
École de technologie supérieure
Montréal, QC
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://listas.cimne.upc.edu/pipermail/gidlist/attachments/20020828/7503401c/attachment.htm
Post Reply