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[Luc Scholtès <question668378@xxxxxxxxxxxxxxxxxxxxx>]

Question #668378 on Yade changed:
https://answers.launchpad.net/yade/+question/668378

    Status: Open => Answered

Luc Scholtès proposed the following answer:
Hi Luis,

The 3 coordinates of the contact normal is what you are looking for.
They give the coordinates of the unit vector normal to the crack plane.
The crack plane corresponds to the surface perpendicular to the branch
vector joining the particle centers (it is located right at the location
where the breakage occurs, as indicated by the 3 coordinates of the
contact point). Based on the unit vector, you should be able to
orientate the cracks in a reference frame (most probably, the same
reference frame in which the vector coordinates are defined).

If you come up with a clean postprocessing script doing what you want,
would it be possible to share it with the community? I believe it would
be of great benefit for JCFPM users.

"nrg" gives the energy released by the breakage of the bond. This energy
corresponds to the elastic energy stored in the bond before it breaks
(in both normal and shear springs).

Luc

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