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[Jérôme Duriez <question276604@xxxxxxxxxxxxxxxxxxxxx>]

Question #276604 on Yade changed:
https://answers.launchpad.net/yade/+question/276604

Jérôme Duriez proposed the following answer:
Yes, it is possible to modify the code in
JointedCohesiveFrictionalPM.cpp/hpp to output some energy data in
cracks_____.txt, and it would probably be useful.

BUT in case of JCFpm simulations and broken interactions, dissipated
energy during plastic sliding is not an adequate variable.... The file
cracks___.txt is specifically about broken interactions that lose their
cohesive feature. At that failure point, there is indeed some change in
energy, but in a brittle sense : the stored elastic energy suddenly
decreases (for shear failure, in case there is an overlap) or vanishes
(for tensile failure or shear failure without overlap)..

In case of JCFpm, sliding plastic dissipation makes sense for non
cohesive interactions that reached the frictional threshold only. Such
interactions are completely not related with the file cracks___.txt

Jerome

PS : we are diverging from the initial question, here.. ;-)

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