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[Bug 399963] Re: TriaxialTest gives different results with ScGeom and Dem3DofGeom, cause is not known

To: yade-dev@xxxxxxxxxxxxxxxxxxx
From: Chiara Modenese <c.modenese@xxxxxxxxx>
Date: Fri, 10 Sep 2010 13:59:42 -0000
Reply-to: Bug 399963 <399963@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

Another important note which regards ratcheting and hence probably
related to this bug. If in PBC the stability of the packing can be
seriously undermined by continuous accumulation of permanent
deformations, with rigid boundaries it seems that under the same
conditions (say identical parameters and contact law), the problem does
not occur or in other words a stable packing can be obtained even in the
presence of ratcheting. Hence, we keep in mind that boundary conditions
do affect this problem.

Chiara

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TriaxialTest gives different results with ScGeom and Dem3DofGeom, cause is not known
https://bugs.launchpad.net/bugs/399963
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Status in Yet Another Dynamic Engine: In Progress

Bug description:
Seems that there is too much friction with the walls, but inspecting the XML file gives nothing suspicious. UnbalancedForce sits constantly at 1.1407 after a small while, without going down.