I want to use DAMASK to run thin sheet RVE with semicircular notches. I would like to know if DAMASK can run this type of thin sheet RVE, and if so, how can I establish this RVE model.
This is the code I tried to use Neper to create RVE:
neper -T -n 320 -morpho gg -domain "cube(0.288,0.014,0.216)" -transform "cut(cylinder(0.144,0,0.216,0,0.014,0,0.096))"
When I converted the following code into a vtk file, the semicircle gap was automatically filled and an additional grain with ID 0 was added（This is the main issue）
neper -T -loadtess n320-id1.tess -format vtk
When I converted it into a vti file, it could not run in DAMASK due to the addition of grains with id -1.
grid=damask.Grid.load_Neper('n320-id1.vtk')
grid.save(f'n320-id1')
How should I solve this problem?
DAMASK can be used with three solvers: spectral (DAMASK_grid), open source FEM (DAMASK_mesh) and MSC.Marc (commercial FEM solver). For your problem, FEM solvers are better suited. However, for MSC.Marc you need a license and DAMASK_mesh is still under development. Your mesh looks like a regular grid for the grid solver. In that case, the air in the notch need to be included into the domain for which you can use the approach described in Article Fourier-based spectral method solution to finite strain crys...
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