muSpectre/9ba574e44635feat/crystal_plasticity…
feat/crystal_plasticity_finite vs master
Commit | Author | Details | Committed | ||||
---|---|---|---|---|---|---|---|
a9b3ad970876 | junge | wip: with francesco | Feb 25 2019 | ||||
3eca3365aa75 | junge | WIP: adding material evaluator to crystal plasticity | Feb 25 2019 | ||||
89116df36865 | junge | Merge branch 'master' into feat/crystal_plasticity_finite | Feb 25 2019 | ||||
a476d861d2e3 | junge | MAINT:Merge branch 'master' into feat/crystal_plasticity_finite | Dec 12 2018 | ||||
3d364d237a5f | junge | MAINT: pre-merge clang format | Dec 12 2018 | ||||
ecc57279e7bd | junge | revert unnecessary cancelling of utf8 output | Dec 6 2018 | ||||
dc40e5e13af2 | junge | rolling back the changes to see which one messes up Jenkins 4 | Dec 6 2018 | ||||
10999c02ed99 | junge | rolling back the changes to see which one messes up Jenkins 3 | Dec 6 2018 | ||||
c1fcc9e488de | junge | rolling back the changes to see which one messes up Jenkins 2 | Dec 6 2018 | ||||
119e60f5c19c | junge | rolling back the changes to see which one messes up Jenkins | Dec 6 2018 |
/
README
µSpectre
Copyright © 2018 Till Junge
µSpectre is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3, or (at your option) any later version.
µSpectre is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with GNU Emacs; see the file COPYING. If not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
This README contains only a small quick start guide. Please refer to the full documentation for more help.
Building µSpectre
µSpectre is a CMake project that uses C++14. It depends on the Boost unit test framework for testing and uses uses python3 as secondary API. You will need a modern C++ compiler (µSpectre was tested with gcc-6 , gcc-7, clang-4 and clang5) and CMake version 3.7.0 or higher.
Compilation
$ git clone https://c4science.ch/source/muSpectre.git $ cd build $ cmake -DCMAKE_BUILD_TYPE=Release .. $ make
µSpectre makes use of expression templates, as a result, production code must be compiled with the CMAKE_BUILD_TYPE flag set to Release in order to get performance (under gcc, non-optimised code is about 50 times slower than the release). Be careful with parallel compilation: compiling µSpectre is quite memory-hungry because of the use of expression templates, a parallel make -j requires currently about 10 GB of RAM under GCC.
Simple usage example
The following is a simple example for using µSpectre through its convenient Python interface
#!/usr/bin/env python3 import numpy as np import muSpectre as µ # setting the geometry resolution = [51, 51] center = np.array([r//2 for r in resolution]) incl = resolution[0]//5 lengths = [7., 5.] formulation = µ.Formulation.small_strain # creating the periodic cell rve = µ.SystemFactory(resolution, lengths, formulation) hard = µ.material.MaterialLinearElastic1_2d.make( rve, "hard", 10e9, .33) soft = µ.material.MaterialLinearElastic1_2d.make( rve, "soft", 70e9, .33) # assign a material to each pixel for i, pixel in enumerate(rve): if np.linalg.norm(center - np.array(pixel),2)<incl: hard.add_pixel(pixel) else: soft.add_pixel(pixel) tol = 1e-5 cg_tol = 1e-8 # set macroscopic strain Del0 = np.array([[.0, .0], [0, .03]]) if formulation == µ.Formulation.small_strain: Del0 = .5*(Del0 + Del0.T) maxiter = 401 verbose = 2 solver = µ.solvers.SolverCG(rve, cg_tol, maxiter, verbose=False) r = µ.solvers.newton_cg(rve, Del0, solver, tol, verbose) print("nb of {} iterations: {}".format(solver.name(), r.nb_fev))
You can find more examples using both the python and the c++ interface in the bin/ and tests folder.