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Re: average stress in particles


Thank you, but I need something else. The title was misleading : I need the average stress in _one_ particle. Anyway, it is 2-3 lines of code, so no big deal. I just wanted to avoid duplicates.


On 07/10/10 12:45, Janek Kozicki wrote:
Bruno Chareyre said:     (by the date of Thu, 07 Oct 2010 11:44:35 +0200)


I'd like to get the mean stress tensor in particles using the contour
integral of forces (i.e. F_i*L_j/V on one particle, with L_j the contact
points), is it already implemented?
I think that a PhD student at my university has it already, in some a
bit older version of yade. I'm not sure if it is exactly what you
want: he cuts a box of volume inside a sample, finds all spheres that
cross this box boundary, gets their interaction forces and calculates
stresses. Also checking if the inside forces equal to outside forces.

This would be a nice exercise for him to commit this to BZR. But
I cannot tell you how long you would need to wait for this.

Łukasz can you just send the code that calculates the stress to Bruno?

Bruno Chareyre
Associate Professor
ENSE^(3) - Grenoble INP
Lab. 3SR
BP 53 - 38041, Grenoble cedex 9 - France
Tél : +33 4 56 52 86 21
Fax : +33 4 76 82 70 43

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