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Re: Compaction/expansion


You are right, compaction (can) generates homogeneity problems.
Personally, I use expansion most of the time.

For porosity in subdomains : yes, it is interesting. This is one of the things I have put in the triangulation package (also computes fabric, stress, strain, coordination number, etc. in subdomains).


chiara.modenese@xxxxxxxxx a écrit :
Hi Bruno,

can I ask you which is actually the difference between the isotropic compaction method and the expansion method? Which one do you prefer and why? I guess if the uniformity of the obtained porosity can be influenced by this choice. If you use the compaction method how can you be sure that the porosity of the specimen is equally distributed? Has been implemented something in Yade that checks this aspect, for instance, dividing the domain in more subdomains and comparing the value of porosity obtained in different regions? It might be interesting.

Thanks a lot,


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Chareyre Bruno
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