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[Jérôme Duriez <question693898@xxxxxxxxxxxxxxxxxxxxx>]

Question #693898 on Yade changed:
https://answers.launchpad.net/yade/+question/693898

    Status: Open => Answered

Jérôme Duriez proposed the following answer:
Hi

1) After a quick look, problem seems to be that your interaction has
already be assigned its mechanical properties (like phys.kn), in the
first O.step, when you declared it as onJoint.

Computation of these mechanical properties happen by default in YADE
only once: at interaction creation (they usually do not change during a
simulation => no need to recompute things which have already been
computed).

Then, your manual changes on that interaction do not have the intended
effect / are incomplete. With such a workflow, you also have to directly
assign yourself an adequate kn value.

(Classical YADE workflow for the use of joint stiffness bodies
parameters goes through
examples/jointedCohesiveFrictionalPM/identifBis.py script)

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