I am a Deal newbie and have a question on how to do topology optimization with
continuous densities. As explained in a previous post to this list by others,
the important detail here is that each element's stiffness matrix has to be
weighted by a scalar density value. In that previous post, the solution
proposed in the case where the density is discrete (0 or 1) was to use the
cell's material_id property.
However, I am interested in using continuous densities. I thought of using the
user_index property of the TriaAccessor class to create a map between the
integer index and the real density but could not really figure out how to do
it. I could not find examples on how to use the user_index property in the
tutorials or the e-mail list, and wanted to ask for guidance on using it (or
otherwise, if you think that there is a better solution than this, I would
greatly appreciate it).
Thanks!
-Julian
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