Displacement boundary condition for elasticity problem

[andrew johnson]

Dear all,

I would like to apply a displacement boundary condition for the Cook membrane problem.  (https://www.dealii.org/current/doxygen/deal.II/code_gallery_Quasi_static_Finite_strain_Compressible_Elasticity.html).

I am looking for examples or resources that can help me with the implementation of this boundary condition. I would greatly appreciate any assistance.

Thank you in advance.

[Wolfgang Bangerth]

On 8/13/23 00:15, andrew johnson wrote:
> I would like to apply a displacement boundary condition for the Cook membrane
> problem.

> (https://www.dealii.org/current/doxygen/deal.II/code_gallery_Quasi_static_Finite_strain_Compressible_Elasticity.html <https://nam10.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.dealii.org%2Fcurrent%2Fdoxygen%2Fdeal.II%2Fcode_gallery_Quasi_static_Finite_strain_Compressible_Elasticity.html&data=05%7C01%7CWolfgang.Bangerth%40colostate.edu%7Caf541e1c089f400b736d08db9bc4b852%7Cafb58802ff7a4bb1ab21367ff2ecfc8b%7C0%7C0%7C638275042668794310%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C2000%7C%7C%7C&sdata=qxVJVyv%2FkgBCTrKzdTp9RqdpPHI5mxDd%2B218gGtQ%2B%2B4%3D&reserved=0>).

>
> I am looking for examples or resources that can help me with the
> implementation of this boundary condition. I would greatly appreciate any
> assistance.

Andrew,
have you looked at the other elasticity codes (e.g., step-8, step-17, step-42)
to see how they impose Dirichlet conditions on the displacement? If these
don't quite match what you need, can you be more specific in the ways in which
what you want to do differs from the techniques shown there?

Best
Wolfgang


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