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[Leonard <question693769@xxxxxxxxxxxxxxxxxxxxx>]

Question #693769 on Yade changed:
https://answers.launchpad.net/yade/+question/693769

    Status: Answered => Open

Leonard is still having a problem:
Hi Jan,
Thanks for your reply.

> check use aabbExtrema()
The initial size of my model is (vector3(0,0,0), vector3(0.07,0.14,0.07)) by using aabbExtrema(),
The aabbExtrema of Fig2 shows is (vector3(0,0,0.05),vector3(0.126,2.7,0.078)). So I think some particles go out of the walls.

> what "rigid wall boundary" is?
Sorry for having not clearly described it.
The walls I defined in my model are as that used in [1] for triaxial simulation:
mn,mx=Vector3(0,0,0),Vector3(0.07,0.14,0.07) 
walls=aabbWalls([mn,mx],thickness=0,material='FrictMat')

 "penetrate" mean "go through" in my question.
According to your suggestion, I think the time step could be the reason.

And just a curiosity, From the results I got, the stress-strain response
and volumetric response have not been affected by this situation. Does
it mean that I can basically ignore this problem?

Thanks

[1]https://gitlab.com/yade-dev/trunk/blob/master/examples/triax-tutorial
/script-session1.py

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