yade-dev team mailing list archive

[Václav Šmilauer <eudoxos@xxxxxxxx>]

*** This bug is a duplicate of bug 569169 ***
    https://bugs.launchpad.net/bugs/569169

I think if you ran without damping, the difference wouldn't be as
noticeable.

Cundall's damping is not Lorentz-like function that amplifies small
causes into big effect. It is function that is _discontinuous_, i.e.
depending on value of the least significant bit, if around zero, that
force's component is multiplied (damping=.2) by .8 or 1.2 -- that is
propagation by easily 10 orders of magnitude in just one step!

-- 
New container causes different results between r2091 and r2092
https://bugs.launchpad.net/bugs/563894
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Status in Yet Another Dynamic Engine: In Progress

Bug description:
As discussed http://www.mail-archive.com/yade-dev@xxxxxxxxxxxxxxxxxxx/msg03202.html
r2091 and r2092 gives different results.

Attached script shows that.

r2091 output:
17716
17716
17716

r2092 output:
18519
18519
18539

This is the number of cohesive contacts inside the specimen. 

Thank you