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Re: [Question #691560]: contact normal is not spherical

 

Question #691560 on Yade changed:
https://answers.launchpad.net/yade/+question/691560

    Status: Needs information => Open

jsonscript gave more information on the question:
Hello,
   Triaxial compression test with sand..
   I meaurse the contact normal by i.geom.normal in O.interactions..then draw the rose diagram..
   The distribution diagram is not a sphere, there is little contact in the vertical direction, and the middle is recessed...

    Here is part of my code:
    PeriTriaxController(dynCell=True,maxUnbalanced=2e-3,relStressTol=2e-5,goal=[-1e5,-1e5,-1e5],stressMask=7,globUpdate=5,maxStrainRate=[0.1,0.1,0.1],doneHook='triaxDone()',label='triax'),

Thanks!

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