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[Chareyre <question186515@xxxxxxxxxxxxxxxxxxxxx>]

Question #186515 on Yade changed:
https://answers.launchpad.net/yade/+question/186515

Chareyre posted a new comment:
(pasting Chiara reply to the list)

I think that Giuseppe may have a point. One problem with shearing the periodic cell by rotating it is that you can reach very large deformations but at some point (I suppose) you have to stop shearing it (because, say, you reach a rotation of 90 degrees of the vertical boundaries). Now, one alternative could be:
1) to maintain a full 3d periodic boundary condition
2) to adjust the top boundary if under stress-controlled conditions
3) to prescribe a simple shear by applying the velocity gradient but without affecting the vertical boundaries (so only particles would be influenced by that but the lateral boundaries would stay vertical).
In principle this would allow for a continuous shear flow. Bruno, do you think it would work? It is more question if that makes sense other than how actually doing it.

Chiara

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