Re: [Getfem-users] linear elasticity assembly

[Yves Renard]

Dear Wen,

The most easier now is to use the high-level assembly but this require to download the svn version of Getfem.
If you can express your computation of the elasticity tensor with standard operations, this would be quite easy (you can see some examples of _expression_ in the test program interface/tests/matlab/demo_nonlinear_elasticity.m). Otherwise, you may have to write the nonlinear operator that make this computation and at least its first derivative. (The nonlinear terms of the old generic assembly are quite difficutl to define, I do not recommend to use them now that the high-level assembly is working satisfactorily).

Regards,

Yves.




Le 08/04/2014 04:23, Wen Jiang a écrit :

Dear all,

I am solving a linear elasticity problem but the material behavior is not isotropic. It needs some calculations in the element stiffness assembly. I would like to know a general way to do this in getfem. Should I use the so called nonlinear term in getfem? Could you briefly tell me how to use this? Thanks.

Regards,

Wen

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  Yves Renard (address@hidden)       tel : (33) 04.72.43.87.08
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