Question #688681 on Yade changed:
https://answers.launchpad.net/yade/+question/688681
Status: Open => Answered
Jan Stránský proposed the following answer:
> However, it is not a different material (for me at least).
well, different material objectively IS different material..
> just changing the contact law should not lead to a different
mechanical behavior (new stress-strain curve).
sorry, but this is total nonsense. Actually, the main reason why to use
a different contact law is to get different mechanical behavior..
> The problem with this contact law is the "young" parameter which makes the
> code to be run so long as for 3 weeks.
> However, with the ViscElMat I get only the hardening behavior which refers to
> a loose specimen (with cn=cs=0) but the code will be run only in 15 minutes.
you use the same young? then what are the differences in both
approaches? Answering it should significantly help.
> Again, for the FricMat, when I define the "young" based on Kn, it gets
a value which makes the run-time so long.
yes, that's one (not the only one) reason why this approach is
discouraged (as discussed in the other referenced questions)
cheers
Jan
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