yade-dev team mailing list archive

[Chiara Modenese <c.modenese@xxxxxxxxx>]

Hi Jerome,
Say that you have cohesion between particles, then if you project the normal
contact force along the normal to the plane you can see that the sign of the
force could be either negative or positive (depending also on the
convention). Bruno, what is your opinion?
Chiara

On 7 February 2011 14:21, Jerome Duriez <duriez@xxxxxxxxxxxxxxx> wrote:

> Hello,
>
> Le 07/02/2011 15:14, Chiara Modenese a écrit :
>
>  do I need to account for the sign of the force ?
>>
>
> I do not think so. I would not see the sense of doing so : in a contact
> between 1 to 2, (force to 1) = - (force to 2). Why distinguish posive and
> negative in this case ?
>
> Jerome
>
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