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[loiseaurare <question266828@xxxxxxxxxxxxxxxxxxxxx>]

Question #266828 on Yade changed:
https://answers.launchpad.net/yade/+question/266828

loiseaurare posted a new comment:
Hi Jerome,

I have been reading your comment on the introduction of an equilibrium distance using cohFrictMat.
I am not sure I understood properly what you point out :  my interrogation comes from reading this previous thread
 --> https://answers.launchpad.net/yade/+question/295035,

where the problem of initial offset or undesired movements was not
raised.

I do not understand why there should be a problem in the first
computational loop, is it not possible to loop over all interactions in
order to set i.phys.unp = i.geom.penetrationDepht BEFORE entering the
actual computation loop ? Or does Yade need to actually perform a first
loop in order to set initial values of the simulation ?

Plus, I was also reading the thread
https://answers.launchpad.net/yade/+question/269724

 discussing whether Yade would match the BPM model features, and you
mentioned that in JCFpmMat, the initial distance between particles is
automatically set as the equilibrium distance ? So there is no need to
use the initD function in order to achieve a zero stress state for
initial overlapping particles using that contact law ?

Regards

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