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Re: Rotation without friction in discrete model ?

 

Lionel Favier said:     (by the date of Tue, 07 Nov 2006 11:46:55 +0100)

> Hi,
> 
> I'm currently using the Elastic Contact Law for my discrete model of a 
> flow down an inclined plane, and I noticed a surprising thing.
> When I use 0 as a value for the friction angle, I observe that the 
> angular velocity of one element after contact with another element is 
> not equal to 0 (The initial angular velocity is equal to 0).
> So the obtained value of the angular velocity is negligible, but it's 
> not equal to zero whereas it should be because there is no shear force 
> in that case.
> Do you know where is this coming from ?


Bruno, can you look at that? I'll be able to check it on friday, not quicker.

Lioner, please just check if the boxes have zero friction angle too
(not only spheres).

-- 
# Janek Kozicki
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