yade-users team mailing list archive

[Jan Stránský <question403385@xxxxxxxxxxxxxxxxxxxxx>]

Question #403385 on Yade changed:
https://answers.launchpad.net/yade/+question/403385

    Status: Open => Answered

Jan Stránský proposed the following answer:
HI Mohsen,
could you please provide a MWE (how you evaluate "determined" and
"computed" E and nu ).
Next time plese be more specific what "great difference" is (10%? 1000%?)

Can we set a geometry which lead to macro parameters the same as micro
ones?


do you mean that you set CpmMat(...,young=25e9) and macroscopic Young's
modulus would be 25 GPa? For sure there exists suxh geometry, but it would
be very special case.. If I did not get it correctly, please correct me.

Thanks
Jan

PS: both your references [1] and [2] refers to the same method..


2016-10-23 15:03 GMT+02:00 mohsen
<question403385@xxxxxxxxxxxxxxxxxxxxx>:

> New question #403385 on Yade:
> https://answers.launchpad.net/yade/+question/403385
>
> In the name of God
>
> Hello All
>
> I am working on calibration of CPM model elastic parameters [1]. When
> calibrating E and nu, there is not enough information about selected E for
> inter particle interactions and obtained E from calibration process. Indeed
> i tried to create cylinder with determined E and nu, then i loaded it and
> computed the macro parameters (E, nu) following the procedure explained in
> [1]; however there was a great difference between the micro and macro E and
> nu?
> Any suggestion? Can we set a geometry which lead to macro parameters the
> same as micro ones?
> I have checked [2] but still the question is unresolved.
>
>
>
> [1]: https://tel.archives-ouvertes.fr/tel-00502402/document
> [2]:Jan Stránský, Milan Jirásek and Václav Šmilauer "MACROSCOPIC ELASTIC
> PROPERTIES OF PARTICLE MODELS" ; MS’10 Prague
> Proceedings of the International Conference on Modelling and Simulation
> 2010
> 22 – 25 June 2010, Prague, Czech Republic
>
> --
> You received this question notification because your team yade-users is
> an answer contact for Yade.
>
> _______________________________________________
> Mailing list: https://launchpad.net/~yade-users
> Post to     : yade-users@xxxxxxxxxxxxxxxxxxx
> Unsubscribe : https://launchpad.net/~yade-users
> More help   : https://help.launchpad.net/ListHelp
>

-- 
You received this question notification because your team yade-users is
an answer contact for Yade.