yade-users team mailing list archive

["Kien Dang, Mr" <kien.dang@xxxxxxxxxxxxxx>]

-----Original Message-----
From: yade-users-bounces@xxxxxxxxxxxxxxxx [mailto:yade-users-bounces@xxxxxxxxxxxxxxxx] On Behalf Of Bruno Chareyre
Sent: Wednesday, January 09, 2008 1:49 PM
To: yade-users@xxxxxxxxxxxxxxxx
Subject: Re: [Yade-users] generating spheres during simulation


>  
>
> I would like to know if it is possible to generate sphere during the 
> simulation.  It can be significantly reduce the amount of computing 
> during the simulation of initial condition since each group of spheres 
> can be calculated separately.
>
Like generating 100 spheres, computing 100 time increments, then add 
more spheres? I think you can.
But how? Which engine will class inherit from? Is it the StandAloneEngine?


>
>  
>
> Another issue is that if it is possible to deactivate the sphere 
> during the simulations, as I guess we can change the flag isDynamic in 
> sphere class and assign some velocity to the spheres. But is there any 
> way to delete them during the simulation?
>
For the moment no element deletion, because some interactions in some 
containers would point to non-existent elements. Yes, you need to set 
IsDynamic=false and move them elsewhere.

OK. I got it

>  
>
> One of the advantage of DEM is that we  can observed the force network 
> as well as some other properties such as coordination number inside 
> the material. Can anyone give me some hints to draw a force network in 
> YADE?"
>

In the interface, go in "display", and activate the option 
"interacting_geometry", it will draw force network.
If, you have problems with the scaling factor (thikness of branches in 
the network), activate/desactivate the "interaction_wire" option; it 
will set the scaling to a value more relevant for your simulation.

It works. Thank you so much

Another issue is I am writing a paper about the packing scheme, however, I was not able to find any paper mentioned about the YADE formulas (i.e. contact law, damping, macro-micro relationship, etc.) at WIKI site (in publication section), could you please give me any paper which has a brief introduction of YADE?
>  
>
> Kien Dang
>
>  
>
> ------------------------------------------------------------------------
>
> _______________________________________________
> Yade-users mailing list
> Yade-users@xxxxxxxxxxxxxxxx
> https://lists.berlios.de/mailman/listinfo/yade-users
>   


-- 
 
_______________
Chareyre Bruno
Maitre de conference

Institut National Polytechnique de Grenoble
Laboratoire 3S (Soils Solids Structures) - bureau E145
BP 53 - 38041, Grenoble cedex 9 - France
Tél : 33 4 56 52 86 21
Fax : 33 4 76 82 70 43
________________

_______________________________________________
Yade-users mailing list
Yade-users@xxxxxxxxxxxxxxxx
https://lists.berlios.de/mailman/listinfo/yade-users
_______________________________________________
Yade-users mailing list
Yade-users@xxxxxxxxxxxxxxxx
https://lists.berlios.de/mailman/listinfo/yade-users