[CIG-LONG] request

[Eunseo Choi]

Dear Hamed

Thanks. I now have a better picture of your problem.
However, let me ask you a couple of more questions to confirm whether 
SNAC can handle this problem.

What would be the nature of the contact boundaries between soil and the 
plate?
For example, are they no-slip or frictional contacts?

Also, how would you drive the process of "pullout"?
Would you apply a kinematic boundary condition  (velocity or 
displacement) on a part of the plate?
A related question is how your plate is buried.
Is it making a certain angle to the horizontal plane? Is the whole plate 
completely surrounded by soil or a part of it sticking out of soil? If 
you have a schematic diagram that describes your problem, it would be 
the best.

I need to know the answers to all these questions because SNAC can deal 
with only a specific type of problem.
For example, SNAC cannot solve a problem with frictional contacts and 
will have difficulty if the configuration of your plate relative to the 
soil medium requires careful meshing.

Best,
Eunseo


Dr Niroumand wrote:
> Dear Eunseo
> Thank you for your answer,
> My piece is a fabrication piece that it is 3 D same eagle.sizes are 
> 29*18*5.5 cm that they are x,y,z.My soils sand and clay and sand-clay.
> I need to modelling and analysis my piece in soil by pullout that it 
> show stress,strain,displacements,force and change of meshesh in both.
> The important part in this research is change of mesh ,displacement 
> and stresses in soils(sand , clay and sand-clay).
> I'm waiting for your answer,
> Best regards,
> Hamed
>
> ------------------------------------------------------------------------
> *From:* Eunseo Choi <echoi at ldeo.columbia.edu>
> *To:* Dr Niroumand <drniroumand at yahoo.com>
> *Cc:* cig-long at geodynamics.org
> *Sent:* Wed, October 7, 2009 10:49:01 AM
> *Subject:* Re: [CIG-LONG] request
>
> Dear Hamed
>
> If you need to discretize a special shape, SNAC might not be the best 
> tool because it is designed to internally set up a regular mesh for a 
> rectangular box or geometries not too far from it.
> It would be very helpful if you can describe the shape of plate with 
> some more details.
> Also, more information on the physics of problem would be necessary.
> For instance, when you pull out the plate (buried?) in sand and clay, 
> are you interested in modeling the response of surrounding sand/clay, 
> that of the plate, or both?
>
> Eunseo
>
>
> Dr Niroumand wrote:
> > Dear Eunseo
> > Thank you for your answer and kindness,
> > I need to modelling and analysis one special shape plate in sand and 
> clay in FEM.This test is pullout,I need to your help for modeling and 
> analysis of this plate in pullout in FEM with any software.
> > May be guide me?
> > Best regards,
> > Hamed Niroumand
> >
> > ------------------------------------------------------------------------
> > *From:* Eunseo Choi <echoi at ldeo.columbia.edu 
> <mailto:echoi at ldeo.columbia.edu>>
> > *To:* Dr Niroumand <drniroumand at yahoo.com 
> <mailto:drniroumand at yahoo.com>>
> > *Sent:* Wed, October 7, 2009 7:31:06 AM
> > *Subject:* Re: [CIG-LONG] request
> >
> > Dear Niroumand
> >
> > My name is Eunseo Choi. I am the maintainer of the code SNAC.
> > Sorry that I was late to respond to your request earlier, but I 
> thought Sue Klentz gave you some information that might be sufficient 
> to get you started.
> >
> > If not, please ask me any further questions: How to install, run 
> SNAC as well as how to generate an input file for the problem you have 
> in mind. Or even the feasibility of solving your problem with SNAC. 
> I'll gladly help you.
> > Thanks for your interests in SNAC.
> >
> > Best regards,
> > Eunseo
> >
> > Dr Niroumand wrote:
> > > Dear Sir/Madam
> > > I need to your software(SNAC)for my research,may be give me ?
> > > I have modelling anchors in soil and need to SNAC for my mesh..
> > > I'm waiting for your answer,
> > > Best regards,
> > > Niroumand
> > >
> > > 
> ------------------------------------------------------------------------
> > >
> > > _______________________________________________
> > > CIG-LONG mailing list
> > > CIG-LONG at geodynamics.org <mailto:CIG-LONG at geodynamics.org> 
> <mailto:CIG-LONG at geodynamics.org <mailto:CIG-LONG at geodynamics.org>>
> > > http://geodynamics.org/cgi-bin/mailman/listinfo/cig-long
> > >
> >
> > -- =====================================
> > Eunseo Choi
> > Post-Doctoral Research Scientist
> >
> > Lamont-Doherty Earth Observatory
> > 305c Oceanography
> > P.O. Box 1000
> > 61 Rt. 9W
> > Palisades, NY 10964-8000
> >
> > http://www.ldeo.columbia.edu/~echoi
> > Phone: 845-365-8813 Fax: 845-365-8156
> > =====================================
> >
> >
>
>
> -- =====================================
> Eunseo Choi
> Post-Doctoral Research Scientist
>
> Lamont-Doherty Earth Observatory
> 305c Oceanography
> P.O. Box 1000
> 61 Rt. 9W
> Palisades, NY 10964-8000
>
> http://www.ldeo.columbia.edu/~echoi 
> <http://www.ldeo.columbia.edu/%7Eechoi>
> Phone: 845-365-8813 Fax: 845-365-8156
> =====================================
>
>


-- 
=====================================
Eunseo Choi
Post-Doctoral Research Scientist

Lamont-Doherty Earth Observatory
305c Oceanography
P.O. Box 1000
61 Rt. 9W
Palisades, NY 10964-8000

http://www.ldeo.columbia.edu/~echoi
Phone: 845-365-8813 Fax: 845-365-8156
=====================================