Modelling of an infinite plate

[Мария Бронзова]

Dear colleagues,

I am trying to model an infinite plate in the context of the mixed formulation problem. To do so I need to set the x and y displacement component solution values to zero. 

I was looking for a function similar to apply_boundary_conditions, but for inner cells as well. Are there elegant ways to enforce zero displacements for certain axes?

Thank you a lot!

With kind regards,

Mariia

[Wolfgang Bangerth]

On 10/29/21 5:26 AM, Мария Бронзова wrote:
>
> I am trying to model an infinite plate in the context of the mixed formulation
> problem. To do so I need to set the x and y displacement component solution
> values to zero.

Everywhere? That seems wasteful -- just set them to zero in your model and
obtain a (scalar) equation that only contains the z-displacement.

> I was looking for a function similar to apply_boundary_conditions, but for
> inner cells as well. Are there elegant ways to enforce zero displacements for
> certain axes?

No, not that I know of.

Best
W.

--
------------------------------------------------------------------------
Wolfgang Bangerth email: bang...@colostate.edu
www: http://www.math.colostate.edu/~bangerth/