yade-users team mailing list archive

[Bruno Chareyre <bruno.chareyre@xxxxxxxxxxx>]

hi Liqing,

I finally gave Law2_ScGeom_CohFrictPhys_ElasticPlastic a try in the 
cohesive triaxial test (with moment law), but I didn't see any problem. 
How is the situation on your side?

Bruno

On 20/09/10 13:52, ?????? wrote:
> Hello Vaclav,
>
> You are right. I see the force is nan indeed. Thank you so much. Thank 
> you for so warm help. I will check the contact law carefully. Thank 
> you again.
>
> Best
> Liqing
>
> At 2010-09-20 17:25:06??"Vaclav Smilauer"<eudoxos@xxxxxxxx>  wrote:
>
> >>  I am sorry to tell you maybe there are some problems if the rolling
> >>  resistance is considered in Law2_ScGeom_CohFrictPhys_ElasticPlastic.
> >>  Yade give the error and stop the calculation. I thought maybe it is
> >>  derived from the velositybins. But, I still cannot get the force value
> >>  even if I deleted the all parameters in InsertionSortCollider.
> >>  The mentioned error is described as follow:
> >>  55217 FATAL
> >>  yade.VelocityBins /home/jiaoliqing/yade/pkg/common/DataClass/VelocityBins.cpp:77 setBins: Body #12179, velSq=-nan not put in any bin!?
> >>  Aborted
> >>  Could you help me to check it? Thank you so much.
> >That error is coming almost certainly from the contact law (unhandled
> >division by zero or such); you can try saving the simulation just before
> >the problem occurs (it should be always at the same place, if you run
> >the same simulation) and the sub-stepping through the iteration using
> >the inspector, you will see that the force will be nan after
> >InteractionDispatchers.
> >
> >Cheers, v.
> >
> >
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>
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--
_______________
Bruno Chareyre
Associate Professor
ENSE^(3) - Grenoble INP
Lab. 3SR
BP 53 - 38041, Grenoble cedex 9 - France
T??l : +33 4 56 52 86 21
Fax : +33 4 76 82 70 43
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