On Sun, 17 Jul 2011, Mengda Wu wrote:

> Sure. I am trying to solve a problem with two linear elastic bodies. One is
> pushing the other at contact boundary. It this something libmesh can
> handle?

Technically - yes, I'm told people have done it, and there's nothing
in the library that's really incompatible with any contact
formulations.

Practically, your application code would have to deal with a few
issues to worry about that we don't cover in any of the examples and
that we don't provide decent in-library APIs for.  Identifying contact
patches efficiently probably requires a more sophisticated algorithm
than our PointLocator octrees, and you'd need to add Jacobian sparsity
pattern entries by hand if you're trying to do an implicit
formulation.
---
Roy

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