Question #699589 on Yade changed:
https://answers.launchpad.net/yade/+question/699589
Status: Answered => Open
Zhicheng Gao is still having a problem:
Thanks, Jan
>you are printing TOTAL force, not normal force. If i.geom.shearForce is
>non-zero, then you naturally get non-parallel vector
I have modified it to print("force",i.phys.normalForce)and I found out that it
was my mistake, body 3 is a wall, not a particle. I checked the other contacts
and they all met the parallel conditions. The question now is why this
phenomenon occurs on the wall.
Best wishes
Gao
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