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[Question #691742]: failure mode of each contact during triaxial compression

To: yade-users@xxxxxxxxxxxxxxxxxxx
From: Leonard <question691742@xxxxxxxxxxxxxxxxxxxxx>
Date: Tue, 07 Jul 2020 19:41:05 -0000
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New question #691742 on Yade:
https://answers.launchpad.net/yade/+question/691742

Hi,

I am now working on a drained triaxial compression test and I am curious to know how to gain the failure mode of each contact during the simulation. 

Specifically, I use CohFrictMat as material of sphere particles:

CohFrictMat(isCohesive=True,young,alphaKr,alphaKtw, poisson,frictionAngle,etaRoll,etaTwist,  density,normalCohesion,shearCohesion, momentRotationLaw=True)                 

and use Law2_ScGeom6D_CohFrictPhys_CohesionMoment(useIncrementalForm=True,always_use_moment_law=True).

So, potentially there could be 3 failure modes for each interaction: shear, bending and twisting. How can we know which mode the interaction fails with?

Thanks
Leonard

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