[GiDlist] volumen mesh

Moderator: GiD Team

pablo p del castillo

[GiDlist] volumen mesh

Postby pablo p del castillo » Wed Oct 20, 2004 5:55 pm

Hello;

I would like to known if "import tolerance" has influence over mesh generator.

I have a volumen with elements between 0.01 to 2 size, and with transition 0.5 it mesh successfull, but if i try with 0.4 or less it said me "problematic volumen", What is the reason? is there another way?



Thanks


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Enrique Escolano

[GiDlist] volumen mesh

Postby Enrique Escolano » Wed Oct 20, 2004 7:25 pm

Import tolerance has doesn't influence the mesh generation.
It's used when collapsing, or after import a file, to join entities.

In other hand, as you related, the Unstrucured size transitions parameter obviously has influence on the mesh.
It's possible to mesh successfull using a parameter value, and have problems to mesh with other value.

Enrique
----- Original Message -----
From: pablo p del castillo
To: gidlist at gatxan.cimne.upc.es
Sent: Wednesday, October 20, 2004 6:30 PM
Subject: [GiDlist] volumen mesh


Hello;

I would like to known if "import tolerance" has influence over mesh generator.

I have a volumen with elements between 0.01 to 2 size, and with transition 0.5 it mesh successfull, but if i try with 0.4 or less it said me "problematic volumen", What is the reason? is there another way?



Thanks



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Henry Liu

[GiDlist] Re: Some questions

Postby Henry Liu » Thu Oct 21, 2004 5:25 pm

Hello,

I am a new user of GiD-7.2. I have some questions
listed as below.

1. I have two components with different material
property. I need to assembly them into one model. Will
I use "Geometry - create - contact -" to create a
contact surface, then the seperated contact volume on
their interface so that the interface will be moving
in same manner when an external load is applied? Is
ther way to check that two components are conatct
togehter rather than touch only? (The attachment
"parts_contact" is a very simple example of two parts
and I want to know how to create conatct surface and
volume)

2. What is the purpose of "Collapse model" and so on
under Utilities? I know only that it is used to delete
overlapping entities on the model. Is there any other
purpose? Can I use "Collapse model" for any cases?

3. I have a same ascii input file with extension .msh.
They look different when I import it into GiD as "GiD
mesh" and as "surface mesh" (The attchment "slab.msh"
is an example). What is the mechnism behind GiD when
an mesh file is imported as a surface mesh?

Thanks a lot in advance!

henry

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