[GiDlist] Meshing curved volumes

GiDList Archive 2014
1

Hi,

I am trying to mesh a simple geometry of the form of a spherical cap (
created by rotating an arc about its axis) but GID shows up some meshing
error. Creating spherical caps from boolean operations don’t work either.

Here’s how my geometry looks like-

[image: Inline image 1]



It was created by rotating this surface around it own axis (bounded by an
arc and a line)-

[image: Inline image 2]

As we can see, it shows up error saying ‘two faces intersect’. Is there any
other way to mesh such volumes?

Thanks,
Amit
-------------- next part --------------
An HTML attachment was scrubbed…
URL: http://listas.cimne.upc.edu/pipermail/gidlist/attachments/20141107/fc518824/attachment-0001.htm
-------------- next part --------------
A non-text attachment was scrubbed…
Name: image.png
Type: image/png
Size: 11773 bytes
Desc: not available
Url : http://listas.cimne.upc.edu/pipermail/gidlist/attachments/20141107/fc518824/attachment-0002.png
-------------- next part --------------
A non-text attachment was scrubbed…
Name: image.png
Type: image/png
Size: 44729 bytes
Desc: not available
Url : http://listas.cimne.upc.edu/pipermail/gidlist/attachments/20141107/fc518824/attachment-0003.png

2

Try to fix some geometrical problem with Utilities-Repair

Try to set all default meshing option. In utilities preferences meshing press the Reset button



If it continue without mesh trying a reasonable mesh size then attach a zip with your model to have a look



Enrique



De: gidlist-bounces at listas.cimne.upc.edu [mailto:gidlist-bounces at listas.cimne.upc.edu] En nombre de amit Dhankhar
Enviado el: viernes, 7 de noviembre de 2014 20:32
Para: gidlist at listas.cimne.upc.edu
Asunto: [GiDlist] Meshing curved volumes



Hi,

I am trying to mesh a simple geometry of the form of a spherical cap ( created by rotating an arc about its axis) but GID shows up some meshing error. Creating spherical caps from boolean operations don’t work either.

Here’s how my geometry looks like-

Inline image 1





It was created by rotating this surface around it own axis (bounded by an arc and a line)-

Inline image 2


As we can see, it shows up error saying ‘two faces intersect’. Is there any other way to mesh such volumes?

Thanks,

Amit

-------------- next part --------------
An HTML attachment was scrubbed…
URL: http://listas.cimne.upc.edu/pipermail/gidlist/attachments/20141110/9ba04a55/attachment.htm
-------------- next part --------------
A non-text attachment was scrubbed…
Name: not available
Type: image/jpeg
Size: 7003 bytes
Desc: not available
Url : http://listas.cimne.upc.edu/pipermail/gidlist/attachments/20141110/9ba04a55/attachment.jpeg
-------------- next part --------------
A non-text attachment was scrubbed…
Name: not available
Type: image/jpeg
Size: 2393 bytes
Desc: not available
Url : http://listas.cimne.upc.edu/pipermail/gidlist/attachments/20141110/9ba04a55/attachment-0001.jpeg

3

Hi,

I tried the repair geometry option which just says “everything was ok” but
fails to mesh. I created my volume by rotating a 2-d curved surface about
its own axis. (which retains the original 2-d surface and creates extra
points and lines which I have to collapse later)

I have attached a zip file containing the simple model -
“nov13_curvedvol_original.gid” - volume created by the rotation which GID
fails to mesh. Could you tell me what else could be wrong in this one? I am
running 12.1.1d version of GID.

In another attempt, “nov13_curvedvol_mod.gid” - I wanted to get rid of
extra surfaces, lines and points so I deleted the original 2-d surface and
the extra lines and tried reconstructing the volume which gives out an
error. This file just has the curved surface and it’s base surface (which
ideally should represent a bounded domain)

Thanks

On Mon, Nov 10, 2014 at 12:26 PM, Enrique Escolano escolano at cimne.upc.edu
wrote:

Try to fix some geometrical problem with Utilities-Repair
Try to set all default meshing option. In utilities preferences meshing
press the Reset button


If it continue without mesh trying a reasonable mesh size then attach a
zip with your model to have a look


Enrique


De: gidlist-bounces at listas.cimne.upc.edu [mailto:
gidlist-bounces at listas.cimne.upc.edu] *En nombre de *amit Dhankhar
Enviado el: viernes, 7 de noviembre de 2014 20:32
Para: gidlist at listas.cimne.upc.edu
Asunto: [GiDlist] Meshing curved volumes


Hi,
I am trying to mesh a simple geometry of the form of a spherical cap (
created by rotating an arc about its axis) but GID shows up some meshing
error. Creating spherical caps from boolean operations don’t work either.
Here’s how my geometry looks like-
[image: Inline image 1]


It was created by rotating this surface around it own axis (bounded by an
arc and a line)-
[image: Inline image 2]

As we can see, it shows up error saying ‘two faces intersect’. Is there
any other way to mesh such volumes?
Thanks,
Amit

GiDlist mailing list
GiDlist at listas.cimne.upc.edu
_http://listas.cimne.upc.edu/cgi-bin/mailman/listinfo/gidlist_

-------------- next part --------------
An HTML attachment was scrubbed…
URL: http://listas.cimne.upc.edu/pipermail/gidlist/attachments/20141113/ed33f5e5/attachment-0001.htm
-------------- next part --------------
A non-text attachment was scrubbed…
Name: image001.jpg
Type: image/jpeg
Size: 7003 bytes
Desc: not available
Url : http://listas.cimne.upc.edu/pipermail/gidlist/attachments/20141113/ed33f5e5/attachment-0002.jpg
-------------- next part --------------
A non-text attachment was scrubbed…
Name: image002.jpg
Type: image/jpeg
Size: 2393 bytes
Desc: not available
Url : http://listas.cimne.upc.edu/pipermail/gidlist/attachments/20141113/ed33f5e5/attachment-0003.jpg
-------------- next part --------------
A non-text attachment was scrubbed…
Name: gid.tar.gz
Type: application/x-gzip
Size: 22433 bytes
Desc: not available
Url : http://listas.cimne.upc.edu/pipermail/gidlist/attachments/20141113/ed33f5e5/attachment-0001.bin

4

Hi Enrique,

Would you suggest trying out some other version for GID for the meshing
issue of the curved geometry I created?

Thanks!

On Thu, Nov 13, 2014 at 10:40 AM, amit Dhankhar amit12kd at gmail.com wrote:

Hi,
I tried the repair geometry option which just says “everything was ok” but
fails to mesh. I created my volume by rotating a 2-d curved surface about
its own axis. (which retains the original 2-d surface and creates extra
points and lines which I have to collapse later)
I have attached a zip file containing the simple model -
“nov13_curvedvol_original.gid” - volume created by the rotation which GID
fails to mesh. Could you tell me what else could be wrong in this one? I am
running 12.1.1d version of GID.
In another attempt, “nov13_curvedvol_mod.gid” - I wanted to get rid of
extra surfaces, lines and points so I deleted the original 2-d surface and
the extra lines and tried reconstructing the volume which gives out an
error. This file just has the curved surface and it’s base surface (which
ideally should represent a bounded domain)
Thanks
On Mon, Nov 10, 2014 at 12:26 PM, Enrique Escolano escolano at cimne.upc.edu
wrote:
Try to fix some geometrical problem with Utilities-Repair
Try to set all default meshing option. In utilities preferences meshing
press the Reset button


If it continue without mesh trying a reasonable mesh size then attach a
zip with your model to have a look


Enrique


De: gidlist-bounces at listas.cimne.upc.edu [mailto:
gidlist-bounces at listas.cimne.upc.edu] *En nombre de *amit Dhankhar
Enviado el: viernes, 7 de noviembre de 2014 20:32
Para: gidlist at listas.cimne.upc.edu
Asunto: [GiDlist] Meshing curved volumes


Hi,
I am trying to mesh a simple geometry of the form of a spherical cap (
created by rotating an arc about its axis) but GID shows up some meshing
error. Creating spherical caps from boolean operations don’t work either.
Here’s how my geometry looks like-
[image: Inline image 1]


It was created by rotating this surface around it own axis (bounded by an
arc and a line)-
[image: Inline image 2]

As we can see, it shows up error saying ‘two faces intersect’. Is there
any other way to mesh such volumes?
Thanks,
Amit

GiDlist mailing list
GiDlist at listas.cimne.upc.edu
_http://listas.cimne.upc.edu/cgi-bin/mailman/listinfo/gidlist_


-------------- next part --------------
An HTML attachment was scrubbed…
URL: http://listas.cimne.upc.edu/pipermail/gidlist/attachments/20141117/f2834b18/attachment-0001.htm
-------------- next part --------------
A non-text attachment was scrubbed…
Name: image002.jpg
Type: image/jpeg
Size: 2393 bytes
Desc: not available
Url : http://listas.cimne.upc.edu/pipermail/gidlist/attachments/20141117/f2834b18/attachment-0002.jpg
-------------- next part --------------
A non-text attachment was scrubbed…
Name: image001.jpg
Type: image/jpeg
Size: 7003 bytes
Desc: not available
Url : http://listas.cimne.upc.edu/pipermail/gidlist/attachments/20141117/f2834b18/attachment-0003.jpg

5

I rebuild your shape avoiding the parametrization problems of your model and it could be meshed without problems.



You have created the extruded surface rotating a curve 180º that cross the rotation axis,

I created the same shape, but dividing the curve and deleting half part, and rotating 360º.



If fact it will be less problematic creating two surfaces not closed (with a rotation of 180º and multiple copies=2 in the copy window)



And the lower plane will be less problematic creating a planar surface by its boundary, avoiding the creation by rotation



(the poles of a surface of rotation are problematic, because this degenerated points have zero derivative in one parametric direction)



Enrique



De: gidlist-bounces at listas.cimne.upc.edu [mailto:gidlist-bounces at listas.cimne.upc.edu] En nombre de amit Dhankhar
Enviado el: lunes, 17 de noviembre de 2014 18:52
Para: gidlist at listas.cimne.upc.edu
Asunto: [GiDlist] Fwd: Meshing curved volumes



Hi Enrique,

Would you suggest trying out some other version for GID for the meshing issue of the curved geometry I created?

Thanks!



On Thu, Nov 13, 2014 at 10:40 AM, amit Dhankhar amit12kd at gmail.com wrote:

Hi,

I tried the repair geometry option which just says “everything was ok” but fails to mesh. I created my volume by rotating a 2-d curved surface about its own axis. (which retains the original 2-d surface and creates extra points and lines which I have to collapse later)

I have attached a zip file containing the simple model - “nov13_curvedvol_original.gid” - volume created by the rotation which GID fails to mesh. Could you tell me what else could be wrong in this one? I am running 12.1.1d version of GID.

In another attempt, “nov13_curvedvol_mod.gid” - I wanted to get rid of extra surfaces, lines and points so I deleted the original 2-d surface and the extra lines and tried reconstructing the volume which gives out an error. This file just has the curved surface and it’s base surface (which ideally should represent a bounded domain)

Thanks



On Mon, Nov 10, 2014 at 12:26 PM, Enrique Escolano escolano at cimne.upc.edu wrote:

Try to fix some geometrical problem with Utilities-Repair

Try to set all default meshing option. In utilities preferences meshing press the Reset button



If it continue without mesh trying a reasonable mesh size then attach a zip with your model to have a look



Enrique



De: gidlist-bounces at listas.cimne.upc.edu [mailto:gidlist-bounces at listas.cimne.upc.edu] En nombre de amit Dhankhar
Enviado el: viernes, 7 de noviembre de 2014 20:32
Para: gidlist at listas.cimne.upc.edu
Asunto: [GiDlist] Meshing curved volumes



Hi,

I am trying to mesh a simple geometry of the form of a spherical cap ( created by rotating an arc about its axis) but GID shows up some meshing error. Creating spherical caps from boolean operations don’t work either.

Here’s how my geometry looks like-

Inline image 1



It was created by rotating this surface around it own axis (bounded by an arc and a line)-

Inline image 2


As we can see, it shows up error saying ‘two faces intersect’. Is there any other way to mesh such volumes?

Thanks,

Amit


\

GiDlist mailing list
GiDlist at listas.cimne.upc.edu
http://listas.cimne.upc.edu/cgi-bin/mailman/listinfo/gidlist





-------------- next part --------------
An HTML attachment was scrubbed…
URL: http://listas.cimne.upc.edu/pipermail/gidlist/attachments/20141117/a50bbea9/attachment-0001.htm
-------------- next part --------------
A non-text attachment was scrubbed…
Name: not available
Type: image/jpeg
Size: 7003 bytes
Desc: not available
Url : http://listas.cimne.upc.edu/pipermail/gidlist/attachments/20141117/a50bbea9/attachment-0002.jpeg
-------------- next part --------------
A non-text attachment was scrubbed…
Name: not available
Type: image/jpeg
Size: 2393 bytes
Desc: not available
Url : http://listas.cimne.upc.edu/pipermail/gidlist/attachments/20141117/a50bbea9/attachment-0003.jpeg
-------------- next part --------------
A non-text attachment was scrubbed…
Name: nov13_curvedvol_rebuild.zip
Type: application/octet-stream
Size: 1022848 bytes
Desc: not available
Url : http://listas.cimne.upc.edu/pipermail/gidlist/attachments/20141117/a50bbea9/attachment-0001.obj

6

Dear Sir/Madam,

I need to know whether the GID software can use for deep excavation
analysis.

Could it able to work with following parameters;

*Defining soil parameters like;

  • Mohr Coulomb and Hardening soil Model
  • drain and undrain analysis
  • C,phi,dialatency properties
  • water level and etc.

*Stage constructions parameters and ect.

I am a beginner for this software and I am looking for analysis the deep
excavation. If anyone expert please reply to me. It will be great to me.

Thank you very much for your kind consideration,

Yours Sincerely,
Shaini Dilsha.
-------------- next part --------------
An HTML attachment was scrubbed…
URL: http://listas.cimne.upc.edu/pipermail/gidlist/attachments/20141117/42987377/attachment.htm

7

GiD itself don’t include any kind of simulation solver.

Simulation solvers are called ‘problemtypes’ in GiD terms (are like GiD-plugins for an specific calculation)



You can use for free code_bright, that is a geotechnical code developed at the Polytechnic University of Catalonia.

http://www.gidhome.com/gid-plus/modules/research-modules/63-codebright



Regards



Enrique Escolano



De: gidlist-bounces at listas.cimne.upc.edu [mailto:gidlist-bounces at listas.cimne.upc.edu] En nombre de Shaini Dilsha
Enviado el: lunes, 17 de noviembre de 2014 17:46
Para: gidlist at listas.cimne.upc.edu
Asunto: [GiDlist] Soil Modeling - Mohr Coulomb and Hardening soil Model.



Dear Sir/Madam,

I need to know whether the GID software can use for deep excavation analysis.

Could it able to work with following parameters;

*Defining soil parameters like;

  • Mohr Coulomb and Hardening soil Model
  • drain and undrain analysis
  • C,phi,dialatency properties
  • water level and etc.

*Stage constructions parameters and ect.



I am a beginner for this software and I am looking for analysis the deep excavation. If anyone expert please reply to me. It will be great to me.

Thank you very much for your kind consideration,



Yours Sincerely,

Shaini Dilsha.







-------------- next part --------------
An HTML attachment was scrubbed…
URL: http://listas.cimne.upc.edu/pipermail/gidlist/attachments/20141117/7583499f/attachment.htm

8

Dear Sir/Madam,

Thank You very much for your soon valuable reply. I could able to installed
CODE_BRIGHT version. So I’ll try to work with that now.

Thank you very much again.

Yours Sincerely,
Shaini Dilsha.

On Tue, Nov 18, 2014 at 12:12 AM, Enrique Escolano escolano at cimne.upc.edu
wrote:

GiD itself don’t include any kind of simulation solver.
Simulation solvers are called ‘problemtypes’ in GiD terms (are like
GiD-plugins for an specific calculation)


You can use for free code_bright, that is a geotechnical code developed at
the Polytechnic University of Catalonia.
_http://www.gidhome.com/gid-plus/modules/research-modules/63-codebright_


Regards


Enrique Escolano


De: gidlist-bounces at listas.cimne.upc.edu [mailto:
gidlist-bounces at listas.cimne.upc.edu] *En nombre de *Shaini Dilsha
Enviado el: lunes, 17 de noviembre de 2014 17:46
Para: gidlist at listas.cimne.upc.edu
Asunto: [GiDlist] Soil Modeling - Mohr Coulomb and Hardening soil Model.


Dear Sir/Madam,
I need to know whether the GID software can use for deep excavation
analysis.
Could it able to work with following parameters;
*Defining soil parameters like;
- Mohr Coulomb and Hardening soil Model
- drain and undrain analysis
- C,phi,dialatency properties
- water level and etc.
*Stage constructions parameters and ect.


I am a beginner for this software and I am looking for analysis the deep
excavation. If anyone expert please reply to me. It will be great to me.
Thank you very much for your kind consideration,


Yours Sincerely,
Shaini Dilsha.





\

GiDlist mailing list
GiDlist at listas.cimne.upc.edu
_http://listas.cimne.upc.edu/cgi-bin/mailman/listinfo/gidlist_

-------------- next part --------------
An HTML attachment was scrubbed…
URL: http://listas.cimne.upc.edu/pipermail/gidlist/attachments/20141118/107fe4e4/attachment.htm