Hello,
I am trying to impose a fixed value to the z-component of
displacement in a linear elastic problem, on a specific node, leaving
the x- and y-components untouched. The only thing I'm currently able to
do is something like
mfu = getfem.MeshFem(mesh, 3)
...
lower_boundary = 1+len(mesh.regions())
mesh.set_region(lower_boundary, fbot) # fbot is a list of element ids
b3 = getfem.MdBrick('dirichlet', b2, lower_boundary, mfu, 'penalized')
This doesn't do what I want:
1. I need to set the boundary condition only on one component of the
displacement field (i.e., z, and not x or y)
2. I need to set the boundary condition only on one node; I couldn't
find a way to create a region on a single node. Best I can do is to
create a region on one element.
3. I want a fixed value for the specified component of the displacement
field which is not zero, but rather some other arbitrary (fixed) number.
I was unable to get the information in a format I could understand from
the documentation. Any help would be greatly appreciated.
Regards,
JS
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