Question #556948 on Yade changed:
https://answers.launchpad.net/yade/+question/556948
Status: Open => Answered
Bruno Chareyre proposed the following answer:
Hello Wojciech!
The sign convention for stress has been homogeneized some time ago. So if you
want a compression the target value ("goal1" and others) should be negative.
Let us know if it fixes the problem.
Cheers
Bruno
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