Hi,
In getfem, to model the Isotropic linearized elasticity described as below
equation (1) and (2), we can use the
“add_isotropic_linearized_elasticity_brick” or “add
getfem::add_nonlinear_term” of the weak formulation.
[cid:[email protected]] (1)
[cid:[email protected]] (2)
Where [cid:[email protected]]
But what if we have a slightly modified question of (2) as below (3)
[cid:[email protected]]
Where the [cid:[email protected]] is the first order time
derivative of strain.
Could you please advise how to model this? I try to add Grad_Dot_u in the weak
formulation, but the getfem won’t allow me.
Thank you very much
Regards
Zhenghuai Guo
