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jedbrown / dohp

dual order hp finite element
https://github.com/jedbrown/dohp/wiki/Dohp
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Add definite vector-valued example, compressible elasticity #3

Closed jedbrown closed 15 years ago

jedbrown commented 15 years ago

Useful for testing performance and correctness for vector-valued problems without the complexity of mixed spaces and indefinite preconditioning. Do we have exact solutions for nonlinear elasticity or will we need to manufacture them?

jedbrown commented 15 years ago

commit fd8b403d51bd805b324cfd6e64dbcc1bc3c4971a Author: Jed Brown jed@59A2.org Date: Sun May 10 00:20:53 2009 +0200

Add elasticity example

* The shell Jacobian and preconditioner (for linear elements) is correct
  even with the nonlinear strain tensor.

* Spectral convergence to manufactured solution is observed for a single element.

* There is some error with high order and multiple elements.  This needs
  to be fixed before implementing an indefinite vector problem (Stokes).

References gh-3
jedbrown commented 15 years ago

Add elasticity test. This is a nonlinear vector problem and it is large enough that it takes a couple seconds to run. It uses the (now default) RCM ordering.

Closed by 806d0f971baa207efbe3aa4cbe2eca91d3c9062f.