yade-users team mailing list archive

[Bruno Chareyre <bruno.chareyre@xxxxxxxxxxx>]

> I didn't want to say that I can control porosity via stress, but that they are 
> not independent (am I wrong anyway?).
>   
You are not wrong, the dependency is just very small (as long as you 
don't modelize bubble-gum packings or other sorts of very soft material).

> So, having a specific particle size 
> distribution, the contact stiffnesses, the angle of friction, is it possible to 
> get a specific value of porosity for the specimen? How can I do it with Yade?
>
>   
You need some trial and error, playing with friction.

A more sophisticated way would be to decrease friction with time, until 
you reach the good porosity. It allows a very precise control of final 
porosity, but I didn't implement it in Yade yet, because I don't need 
very precise porosities for now.

> Sorry if I continue on this point, but I am a little bit confused on it.
>   
No worries. :)

Bruno




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