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Re: [Question #688979]: period triaxial test under cyclic shear load

To: yade-users@xxxxxxxxxxxxxxxxxxx
From: yangsiyuan <question688979@xxxxxxxxxxxxxxxxxxxxx>
Date: Fri, 28 Feb 2020 19:22:40 -0000
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Question #688979 on Yade changed:
https://answers.launchpad.net/yade/+question/688979

    Status: Answered => Open

yangsiyuan is still having a problem:
The strain rate I'm applying is the shear strain rate, not the normal strain rate. It points to the X-axis inside the zx plane.
I can change direction periodically
The effective stress is calculated directly by getstress ().
Stressmask =0 is adjusted as a strain control, which can reflect the change of effective stress during the shear phase. And the effective stress will no longer maintain a constant value.
Because the load applied during the shear phase is cyclic shear strain rate rather normal strain rate. This can be done through o.c.velgrad. Therefore, there is no need to set triaxial.goal during the shear phase.
By the way, what happens if you don't set triax.goal, is there any influence on the effective stress.

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