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[janaka kumara <question162989@xxxxxxxxxxxxxxxxxxxxx>]

New question #162989 on Yade:
https://answers.launchpad.net/yade/+question/162989

I have few isues as mentioned below when I use peri3dController_triaxialCompression.py to simulate triaxial tests for Toyoura sand.
1. Whats "initSize"?. I use specimen (sand) of 200mm in heigh and 100mm in diameter in labaratory experiments. How can I simulate same conditions in Yade using "initSize? 
2. When I change "initSize" and radius in "sp=pack.randomPeriPack(radius=.........), into 0.1 and 0.0002285 respectively, Yade didnt work properly and gave that ..............
Considering packing (radius=0.05+or-0, N=986, dim=0.00431044x0.00431044x0.00431044,periodic,scale=0.00457), created Tue Jun 27 03:12:03 2011
REJECT: initSize differs too much from scaled packing size.
Does this mean that there are limits on "initSize" and "radius"? If so, what are those limits?

Note: D50 of sand used is 0.0002285m. I though thats equal to radius . I also thought "initSize" means diameter of the specimen, thats why I used 0.1m above. 

Could you please explain where I did mistakes and how I could correct them. 

Thank you.

Regards,
Janaka,

PhD candidate,
Geotechnical laboratory, 
Department of Civil Engineering,
Yokohama National University,
Japan

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