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Re: [Question #691584]: About periodic simple shear

To: yade-users@xxxxxxxxxxxxxxxxxxx
From: Jan Stránský <question691584@xxxxxxxxxxxxxxxxxxxxx>
Date: Thu, 02 Jul 2020 19:15:45 -0000
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Question #691584 on Yade changed:
https://answers.launchpad.net/yade/+question/691584

    Status: Open => Answered

Jan Stránský proposed the following answer:
> How to associate the non-zero term with the index?

The Matrix3 is (xx, xy, xz,  yx, yy, yz,  zx, zy, zz), "one row" of the form:
xx  xy  xz
yx  yy  yz
zx  zy  zz

> If the O.cell.velGrad=Matrix3(.1,0,0, 0,0,0, 0,0,0), Which is the
shear plane?

you have no shear here.
the first (the only non-zero) element is xx = normal x direction, so this correspond to stretching (enlargement) along x axis.

cheers
Jan

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