On 3/10/23 13:05, Konrad Schneider wrote:
**
Thanks. That was too easy. How should one know this...
Actually in the documentation
(https://www.dealii.org/current/doxygen/deal.II/classDataPostprocessorTensor.html) the command
data_out.write_vtk (output);
appears in the example. Maybe it should be changed to
data_out.write_vtu (output);
Furthermore, may I suggest, that it might be of some value to add the data
output of stresses to one of the elasticity tutorials (maybe add it to
step-8), since evaluating stresses (especially von mises stresses) is one of
the major tasks in "pure" solid mechanics plus there is this pitfall that we
have to use the vtu-format for tensor data.
Konrad,
yes, this had been pointed out a couple of months ago, and the current
developer documentation already points that out as well:
https://www.dealii.org/developer/doxygen/deal.II/classDataPostprocessorTensor.html
I've taken the liberty to also write a patch that makes the error message
clearer:
https://github.com/dealii/dealii/pull/14875
Best
W.
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