Dear Kostas
Thank you for your email.
I was impressed that GWFL can do it. I will try it.
And I was also impressed that we can express hyperelastic material.
Best regards
Tetsuo
2020年12月17日(木) 22:16 Konstantinos Poulios <logar...@googlemail.com>:
> Dear Tetsuo
>
> GWFL can do this. Here is an example of modelling a hyperelastic material
> in an axisymmetric problem:
>
> md.add_initialized_data("K", E/(3.*(1.-2.*nu))) # Bulk modulus
> md.add_initialized_data("mu", E/(2*(1+nu))) # Shear modulus
> md.add_macro("F", "Id(2)+Grad_u")
> #md.add_macro("F3d",
> "[1+Grad_u(1,1),Grad_u(1,2),0;Grad_u(2,1),1+Grad_u(2,2),0;0,0,1]")
> md.add_macro("F3d",
> "Id(3)+[0,0,0;0,0,0;0,0,1/X(1)]*u(1)+[1,0;0,1;0,0]*Grad_u*[1,0,0;0,1,0]")
> md.add_macro("J", "Det(F)*(1+u(1)/X(1))")
> md.add_macro("devlogbe", "Deviator(Logm(Left_Cauchy_Green(F3d)))")
> md.add_macro("tauH", "K*log(J)")
> md.add_nonlinear_generic_assembly_brick(mim,
> "2*pi*X(1)*((tauH*Id(2)+tauD2d):(Grad_Test_u*Inv(F))+(tauH+tauD33)/(X(1)+u(1))*Test_u(1))")
>
> Could you try if this works for you?
>
> Best regards
> Kostas
>
> On Thu, Dec 17, 2020 at 11:09 AM Tetsuo Koyama <tkoyama...@gmail.com>
> wrote:
>
>> Dear getfem users.
>>
>> Excuse me for my frequent questions.
>> I would like to solve the problem of axisymmetric elements in cylindrical
>> coordinate.
>>
>> I tried to use a GWFL to simulate a two-dimensional mesh as a mesh of
>> axisymmetric elements, but I couldn't. As you know, Grad and Div are
>> different for cartesian coordinate and cylindrical coordinate systems.
>> Is there a good way to solve this problem?
>>
>> Best Tetsuo.
>>
>
