yade-users team mailing list archive

[Bruno Chareyre <bruno.chareyre@xxxxxxxxxxx>]

>             OTOH, us is exactly (trialFs-prevFs)/ks, by definition of
>             trialFs,
>
> btw, us as you intend here is actually the total plastic displacement, 
> not the incremental one.

No, it is really the increment, including plastic and elastic.

>     When I say shearForce is varying I mean the maximum friction
>     value. Maybe I am a little confused now, perhaps I am wrong. Could
>     you just tell me if you see any effect due to the variation of the
>     maximum friction? Because that is why I was making distinction
>     between loading and unloading and for the same reason I am not
>     convinced that using Trial force would be the best choice.
Yes, max fs is changing with fn. It is handled by the current equation 
correctly I think. Try computing different scenarii by hand and you will 
see, and let me know if you proove it wrong. :)

Bruno





>     thanks, chiara
>      
>
>         Chiara
>
>
>
>             Bruno
>
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--
_______________
Bruno Chareyre
Associate Professor
Grenoble INP
Lab. 3SR
BP 53 - 38041, Grenoble cedex 9 - France
Tél : 33 4 56 52 86 21
Fax : 33 4 76 82 70 43
________________