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Re: [Getfem-users] C^1 elements in 3D

From: Yves Renard
Subject: Re: [Getfem-users] C^1 elements in 3D
Date: Mon, 12 Mar 2012 15:57:37 +0100
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Dear Andriy,

There is FEM_HERMITE(3) but of course, it is not a fully C^1 element
(but it can give good results). In 2D there is also the Argyris triangle
(degree 5) but I don't know if there is a simple generalisation in 3D
(in fact Argyris triangle element is himself not very simple). I don't
know neither is there is simple generalisation to the 3D of piecewise
third degree polynomial HCT and FVS elements .
In fact, these elements are mainly used in thin structure model that are
one or two-dimensional problems only.

So , you have to have a good reason for using C1 conforming element in 3D !
May be you can avoid them.


Le 12/03/2012 15:40, Andriy Andreykiv a écrit :
> Dear Yves and Getfem users,
> Does Getfem have C^1 continuous elements in 3D?
> I saw, for instance, FEM_HERMITE(1) and FEM_HCT_TRIANGLE,
> IM_QUADC1_COMPOSITE are C^1, but those are in 1D and 2D.
> Best regards,
>                          Andriy
> _______________________________________________
> Getfem-users mailing list
> address@hidden


  Yves Renard (address@hidden)       tel : (33)
  Pole de Mathematiques, INSA-Lyon             fax : (33)
  20, rue Albert Einstein
  69621 Villeurbanne Cedex, FRANCE


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