Question #691584 on Yade changed:
https://answers.launchpad.net/yade/+question/691584
Jan Stránský posted a new comment:
The compression stage is not necessary, of course.
It depends on what you want to simulate. The original script probably simulated
some experiment with prestress and one
Question #691584 on Yade changed:
https://answers.launchpad.net/yade/+question/691584
Kieran Fung posted a new comment:
Hi Jan,
Thank you for the explanations! Let's see how I can reword my question
above.
> Does this step ultimately cause the periodic boundary condition to be
flush with the
Question #691584 on Yade changed:
https://answers.launchpad.net/yade/+question/691584
Jan Stránský posted a new comment:
Hello,
> why does the code first simulate a constant isotropic compression of
> O.cell.velGrad=Matrix3(-.1,0,0, 0,-.1,0, 0,0,-.1)?
> Is isotropic compression necessary prior
Question #691584 on Yade changed:
https://answers.launchpad.net/yade/+question/691584
Kieran Fung posted a new comment:
Hi Jan Stránský!
I'm hoping to hi-jack this question thread and expand upon the amazing
discussion you and Lei Hang have had above. Seriously, the above
conversation was an
Question #691584 on Yade changed:
https://answers.launchpad.net/yade/+question/691584
Lei Hang confirmed that the question is solved:
Thanks Jan Stránský, that solved my question.
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Question #691584 on Yade changed:
https://answers.launchpad.net/yade/+question/691584
Status: Answered => Solved
Lei Hang confirmed that the question is solved:
Thank you very much Jan!
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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
Question #691584 on Yade changed:
https://answers.launchpad.net/yade/+question/691584
Lei Hang gave more information on the question:
If the O.cell.velGrad=Matrix3(.1,0,0, 0,0,0, 0,0,0), Which is the shear
plane?
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Question #691584 on Yade changed:
https://answers.launchpad.net/yade/+question/691584
Status: Solved => Open
Lei Hang is still having a problem:
Hello
Excuse me. I find I don't understand the non-zero term is at index(0,2)
in the answer. How to associate the non-zero term with the index?
Question #691584 on Yade changed:
https://answers.launchpad.net/yade/+question/691584
Status: Answered => Solved
Lei Hang confirmed that the question is solved:
Thanks Jan Stránský, that solved my question.
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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:
Hello,
> O.cell [1]
> hSize [2]
> "Base cell vectors (columns of the matrix)" [2].
> O.cell [1]
> hSize [3]
> components of velocity
Question #691584 on Yade changed:
https://answers.launchpad.net/yade/+question/691584
Status: Answered => Open
Lei Hang is still having a problem:
Thank you for your answer! I have some other questions.
1. What is the meaning of the numbers(2,3,4,5) in
"hsize[2]","hsize[3]","velocity
Question #691584 on Yade changed:
https://answers.launchpad.net/yade/+question/691584
Status: Open => Answered
Jan Stránský proposed the following answer:
Hello,
first of all, I am not sure if periodic simulations are a good very first
starting point to learn Yade..
The previous scripts
Question #691584 on Yade changed:
https://answers.launchpad.net/yade/+question/691584
Status: Solved => Open
Lei Hang is still having a problem:
Hello,
When I study the yade script about periodic simple shear test, I don't
understand some places. The periodic simple shear script link is
Question #691584 on Yade changed:
https://answers.launchpad.net/yade/+question/691584
Status: Answered => Solved
Lei Hang confirmed that the question is solved:
Thanks Jan Stránský, that solved my question.
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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:
Because you can easily choose one scenario or the other just by replacing 0
with 1 or vice versa.
The value "0" or "1" is not hardcoded,
Question #691584 on Yade changed:
https://answers.launchpad.net/yade/+question/691584
Status: Answered => Open
Lei Hang is still having a problem:
Thanks for your quick help Jan! But I still don't understand (as the "if
0:" block is never executed and therefore "else" is always executed).
Question #691584 on Yade changed:
https://answers.launchpad.net/yade/+question/691584
Status: Open => Answered
Jan Stránský proposed the following answer:
Hello,
> I am a new user for yade
welcome :-)
next time please provide also a link to the script
This pattern is to easy switch
New question #691584 on Yade:
https://answers.launchpad.net/yade/+question/691584
Hello, I am a new user for yade. When I study the yade documentation about
periodic simple shear, I don't understand the meaning of "if 0:..., else:...".
The detailed code is following:
from yade import pack,plot
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