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[Bruno Chareyre <question679515@xxxxxxxxxxxxxxxxxxxxx>]

Question #679515 on Yade changed:
https://answers.launchpad.net/yade/+question/679515

Bruno Chareyre posted a new comment:
Hi,
You need to write a servo-control loop since ultimately the velocity gradient is the only thing you can really impose.
Typically: impose strain rate in one direction, get stress in that direction as a result, then keep updating the target stress in the other directions in order to keep trace(sigma) constant.
Bruno

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