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[Question #689623]: enlarge the stiffness or not?

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Date: Tue, 31 Mar 2020 22:43:43 -0000
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New question #689623 on Yade:
https://answers.launchpad.net/yade/+question/689623

Hi All,

I use the original particle size distribution(PSD) curve in a small triaxial test, then I calibrate and validate the deviatoric stress- axial strain and the volumetric strain- axial strain curve. Finally, I got a set of microscale parameters, for instance, contact stiffness, Poisson's ratio.

after that, I want to use this set of parameters to do another test (the material is the same), due to the large dimension of the sample. I enlarged the PSD curve by 20 times. 

Here is my question: do I need to increase the contact stiffness as well as other parameters by 20 times? or I don't need to change all the parameters?

thanks!
yong


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