Re: [Getfem-users] Prescribed Displacement in one direction only (free slip)

[Yves Renard]

Dear Antoine,

You can use 
add_generalized_Dirichlet_condition_with_multipliers(mim, varname, 
mult_description, region, dataname, Hname)
instead, see 
http://getfem.org/python/cmdref_Model.html?highlight=dirichlet_condition#getfem.Model.add_generalized_Dirichlet_condition_with_multipliers

Best regards,

Yves.


----- Original Message -----
From: "Antoine Mazuyer" <address@hidden>
To: address@hidden
Sent: Sunday, July 2, 2017 1:30:26 PM
Subject: [Getfem-users] Prescribed Displacement in one direction only (free 
slip)

Dear all,

I work with 3D linear elastic problems and I have to prescribed 
displacements on some boundaries (Dirichlet Conditions)

I use this sample code:

                 std::vector< bgeot::scalar_type > F( mf_rhs.nb_dof() * 3 );
                 getfem::interpolation_function( mf_rhs, F,
                     my_class_function, attribute_id );
                 getfem::add_Dirichlet_condition_with_multipliers( 
model, mim, "u",
                     mf_u, attribute_id, "Dirichlet" );

to add a Dirichlect condition to my region "attribute_id"
The problem is that my_class_function has an operator() that returns a 
bgeot::base_vector with three coordinates, containing the three 
prescribed displacements. With this kind of code, I have to prescribed 
the displacement in the 3 directions

How can I just precribed the displacement in only one direction, and let 
the others free ?

Thank you in advance for your advices !


-- 
-- 
*Antoine Mazuyer 
<http://www.ring-team.org/component/liad/?view=user&limitstart=0&id=589> 
* | *PhD. Candidate* | ASGA
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