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Re: [Question #670047]: Determining macro parameters in uniaxial compression

To: yade-users@xxxxxxxxxxxxxxxxxxx
From: Jan Stránský <question670047@xxxxxxxxxxxxxxxxxxxxx>
Date: Tue, 19 Jun 2018 13:42:50 -0000
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Question #670047 on Yade changed:
https://answers.launchpad.net/yade/+question/670047

Jan Stránský proposed the following answer:
Hello,

it seems that the stress is not updates, use lower stressUpdateInterval
os UniaxialStrainer [1].

(depending on convention), negative strain/stress means compression
(while positive are tension).

What points to use and how to evaluate the initial slope - e.g. a linear
regression of the"right points" should do that, you can always visually
compare the result if you used "the right points..

cheers
Jan

[1] https://yade-
dem.org/doc/yade.wrapper.html#yade.wrapper.UniaxialStrainer.stressUpdateInterval

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