[GiDlist] Meshing curved volumes

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amit Dhankhar

[GiDlist] Meshing curved volumes

Postby amit Dhankhar » Fri Nov 07, 2014 8:31 pm

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
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User avatar
escolano
Posts: 1580
Joined: Thu Sep 18, 2014 3:31 pm

[GiDlist] Meshing curved volumes

Postby escolano » Mon Nov 10, 2014 7:26 pm

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

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amit Dhankhar

[GiDlist] Meshing curved volumes

Postby amit Dhankhar » Thu Nov 13, 2014 5:40 pm

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


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Shaini Dilsha

[GiDlist] Soil Modeling - Mohr Coulomb and Hardening soil Mo

Postby Shaini Dilsha » Mon Nov 17, 2014 5:46 pm

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.
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User avatar
escolano
Posts: 1580
Joined: Thu Sep 18, 2014 3:31 pm

[GiDlist] Soil Modeling - Mohr Coulomb and Hardening soil Mo

Postby escolano » Mon Nov 17, 2014 6:12 pm

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.







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Shaini Dilsha

[GiDlist] Soil Modeling - Mohr Coulomb and Hardening soil Mo

Postby Shaini Dilsha » Mon Nov 17, 2014 6:46 pm

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


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amit Dhankhar

[GiDlist] Fwd: Meshing curved volumes

Postby amit Dhankhar » Mon Nov 17, 2014 6:51 pm

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



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User avatar
escolano
Posts: 1580
Joined: Thu Sep 18, 2014 3:31 pm

[GiDlist] Fwd: Meshing curved volumes

Postby escolano » Mon Nov 17, 2014 9:48 pm

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





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