* Fix deprecation warnings from tests
* Refactor tests so that ´@testset` is usually called in master file
`runtests.jl`, not inside test file. Later on we can convert tests
to examples.
* Syntax of tests now follow more closely syntax used currently in
JuliaFEM. We have had earlier studies with different kind of syntaxes,
now we have kind of explicit way to do things.
Moved plane contact related stuff to own separate package
`MortarContact2D.jl`, where the development continues.
The following changes to test files are done:
1) Problem name for plane mortar coupling is `Mortar2D` (was `Mortar`
before), and later on 3d coupling will be `Mortar`. So the dimension
of coupling operator is explicitly given in a problem name.
2) Before elements to coupling was defined using
```julia
update!(problem.elements, "master elements", master_elements)
add_elements!(problem, [slave_elements; master_elements])
```
Now, explicitly give master and slave elements as
```julia
add_slave_elements!(problem, slave_elements)
add_master_elements!(problem, master_elements)
```
Keep on mind that Lagrange multipliers are in slave side.
* refactored code for solvers.
* Added elementary tests for least-squares fitting of strain and stress fields
* A more realistic postprocess + Xdmf writing test
* removed debug keyword argument from test
* Rewrite update_xdmf!
New function to update Xdmf file no longer takes Solver object but
xdmf, problem, time and fields to write, for example
julia> update_xdmf!(xdmf, problem, 0.0, ["displacement", "temperature"])
All problems are written separately and put together into one
SpatialCollection, allowing to have more structured Xdmf and making
it easier to write complicated field configurations. Support for Xdmf
API 3.0 added.
* Support for Tensor6 field writing
* moved update_xdmf! to io.jl
* Removed some empty files
* Not use old Postprocessor, obsolete code.
* Not use old XDMF (obsolete code). Fixed test.
* removed some postprocessing to pass test, maybe we should drop abaqus.jl from code as obsolete
* add function get_temporal_collection back, it's used by update_xdmf of modal solver
* postprocess of boundary problems also
* added test for contact pressure. dl+quad test output was written in wrong file, fixed.
* postprocess for contact pressure
* contact pressure postprocess
* with boundary problems always store also the primary unknown field
* Change "reaction force" -> "lambda"
* testing postprocess of reaction force also
* sign convention
* contact 3d patch test, standard lagrange, small sliding, linear tet4 elements
* tet4 dual basis contact patch test pass
* contact 3d patch test, standard lagrange, small sliding, linear tet4 elements
* tet4 dual basis contact patch test pass
* Patch test for linear elements standard lagrange / dual lagrange pass now
* Patch test for quadratic contact surfaces for standard + dual basis pass
* refactoring
* renamed files
* Improvements to preprocess scripts
* convert several elements to node sets in one command
* possibility to find particular node from mesh filtered by node set
* 2d small sliding contact patch test, linear elements
* Added backward compatibility
* 2d contact algorithms pass patch tests
* test data for 2d contacts
* no common models in different tests. testing generalized alpha stabilization
* Preprocess tests
* moved tests from test_preprocess_aster_reader.jl to test_preprocess.jl
* generalized-alpha time integration, alpha=0.0 by default
* Improvements to logging
* JuliaFEM.jl: can set environment variable to one of logging levels: OFF, CRITICAL, ERROR, WARNING, INFO, DEBUG
* problems_contact_2d_autodiff.jl: do not loop over nodes if logging level != DEBUG
Jukka Aho