40 lines
2.7 KiB
Plaintext
40 lines
2.7 KiB
Plaintext
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To use the spectral method, a Fortran compiler must be installed.
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For post an prepocessing, a running python enviroment with numpy must be installed.
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Currently the Intel Fortran compiler and the GNU Fortran compiler are supported.
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The compilation of the code is automated by using make.
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There are several options to tune the compilation in detail
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The most important switch is "F90" to choose the Fortran compiler.
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It can be set to "ifort" (Intel Fortran compiler) or "gfortran" (GNU compiler).
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E.g. "make F90=gfortran"
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Multiprocessor support can be switched off by setting "OPENMP=OFF" (default "OPENMP=ON").
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The compiler switches are explained in detail in the makefile in %DAMASK%/code
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A "make clean" removes all previously compiled code.
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If the compilation was succesfull, a file called DAMASK_spectral.exe is found in %DAMASK%/code.
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If multiprocessor support is enabled (default), the number of threads can be set to N by setting "DAMASK_NUM_THREADS".
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E.g. "export DAMASK_NUM_THREADS=4" for using four cores.
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The number of processors can be shown by "echo $DAMASK_NUM_THREADS"
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To run the application in the directory containing loadcase, geometry and *.config files, type %DAMASK%/code/DAMASK_spectral.exe geomfile.geom loadcasefile.load
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To create geomtry file, use the tools for voronoi tesselation provided in %DAMASK%/processing/pre
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At first, install all processing tools by running %DAMASK%/processing/setup/setup_processing.py
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!Be carefull, change "ifort" to your compiler name in "os.system('ifort -O3 -parallel -o%s.exe %s'%(os.path.splitext(src)[0],src))" in that file
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!And change f90flags="-heap-arrays 500000000" to f90flags="" in "%DAMASK%/processing/post/make_postprocessingMath" for non-Intel compiler
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If the post- and preprocessing are correctly installed, you have the file "voronoi_randomSeeding.exe" and "voronoi_tessellation.exe" in "%DAMASK%/processing/pre"
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To generate random seeds, run "voronoi_randomSeeding.exe" an follow the instructions on the screen.
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You will get a file called *.seeds in your working directory
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With the *.seeds file, you can generate geometry files at different resolution and dimensionby running "voronoi_randomSeeding.exe" in "%DAMASK%/processing/pre"
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You will get three files called *.spectral, *.geom, *.config .
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Ingnore the first one.
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Rename the file *.config to "material.config".
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This file conatines the information about the orientation of each grain in the generated microstructure.
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It DOES NOT contain any information about the constitutive model that should be used.
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Copy that information from %DAMASK%/code/config/material.config
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A valid "material.config" contains at least one <homogenization> scheme, a <microstructure> for each grain, at leat one <texture>, a <crystallite> and at leat one <phase>
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