[Getfem-users] Follower pressure

[Fabrice Silva]

Hi,
Dealing with nonlinear elasticitya and lagrangian formulation, I need to
apply an external pressure to a moving boundary. This is, in french
words, usually called 'pression suiveuse' (see [1,2] for example), i.e.
it takes into account the rotation of the normals of the faces.
Is there such a brick in getfem ? If so, how to use it ?

Best regards,

[1] Code Aster documentation 
www.code-aster.org/V2/doc/default/fr/man_r/r3/r3.03.07.pdf‎
[2] Fortin and Garon, page 305 
www.giref.ulaval.ca/~afortin/cours_elements_finis/documents/notes_elements_finis.pdf

-- 
Fabrice