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For the dense material I have choosen for a triaxial test and in which I

 - reduced the angle of friction of the compaction phase
 - changed the granular size

I don't understand why it takes so long to reach the deviatoric peak
(blue curve), I mean it seem that the specimen find difficulty to
converge after the compaction phase. 

In fact (for the same parameters I have used) I should have something
that looks like in the red curve o.

Is it due to a mismodelling of a dense material? or contact rigidities,
contact laws or something else ??

Attachment: Capture.png
Description: PNG image

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