Yade

Lower corner and upper corner of the box in TriaxialStressController

Asked by Zhe Zhang

Hi!

I would like to know how to obtain the vector of lower corner and upper corner of the box after deformation in TriaxialStressController. There are the two attributes in class yade.wrapper.TriaxialTest, but i did not find these two vectors in TriaxialStressController.
In TriaxialStressController, i find there is wall_back_id, which means id of boundary ; coordinate 2-. I dont know what this means. Does it mean the coordinate of back wall of the box or just the id of this body?

Thank you!

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Bruno Chareyre
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Best Bruno Chareyre (bruno-chareyre) said : 		#1

Hi,
You can indeed use the wall_XXX_id's to retrieve the boxes and take their positions.
If thickness is 0 their positions will be the position of the boundary (else remove half the thickness).

"coordinate 2-" refers to the side bounded by a certain box: x-, x+, y-, y+, z-, z+ (replace the letters with axis 1,2,3).
Regards
Bruno

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Zhe Zhang (zzjohn) said : 		#2

Thanks Bruno Chareyre, that solved my question.