Re: [Getfem-users] manually set deformation beforecompute_tangent_matrix

[Nico Galoppo]

Hi Andriy,

Thanks for the help. I'm using the matlab API. Unfortunately, I don't
know enough about the MEX interface to know if it's possible to
manually change data in the model state objects. AFAIK these objects
are opaque to the matlab command line.

--nico

On Jan 3, 2008 4:33 AM, Andreykiv, A. <address@hidden> wrote:
>
>
>
> Hi Nico,
>
>     It is possible. You will have to set the displacement vector in the
> model state object, that you're using with your bricks.
> But, you're using Python, right? I use C++, but it must be the same in
> Python.
> For the details, please see the documentation on the model state class.
> If you're having problems, I could send you my C++ code that does it.
>
> Regards,
>                   Andriy
>
>
> ______________________________________________
> Andriy Andreykiv
> Delft University of Technology
> Faculty of Mechanical Engineering
> Fundamentals of Microsystems
> Mekelweg 2
> 2628 CD  Delft
> The Netherlands
>
> E-mail  :  address@hidden
> Tel.      :   (31) 15 2786818
> Fax.     :   (31) 15 2789475
> www     :   http://www-tm.wbmt.tudelft.nl/~andrico
> private  :  +31647376804
>
>  ________________________________
>  From: address@hidden on behalf of Nico Galoppo
> Sent: Ср 02/01/2008 18:55
> To: address@hidden
> Subject: [Getfem-users] manually set deformation
> beforecompute_tangent_matrix
>
>
>
>
>
> Hi,
>
> Is it possible to set a field on a fem explicitly, such that the
> correct state is used when recomputing the tangent matrix?
>
> For example, I would like to set the deformation of the mesh_fem mfu
> that was linked to a brick as below:
>
> gf_mesh_fem_set(mfu, 'fem', gf_fem('FEM_PK(3,1)'));
> b0 = gfMdBrick('nonlinear elasticity', mim, mfu, 'SaintVenant Kirchhoff');
>
> ... setting some constraints in brick b3 ...
>
> Here, I would like to set the deformation of mfu explicitly, to
> extract the tangent matrix. Is this possible?
>
> gf_mdstate_set(mds,'compute_tangent_matrix',b3);
> gf_mdstate_get(mds,'tangent_matrix')
>
> Thanks!
>
> --nico
>
> --
> Nico Galoppo :: http://www.ngaloppo.org
>
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> Getfem-users mailing list
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>



-- 
Nico Galoppo :: http://www.ngaloppo.org