yade-users team mailing list archive

[wangxiaoliang <question210907@xxxxxxxxxxxxxxxxxxxxx>]

Question #210907 on Yade changed:
https://answers.launchpad.net/yade/+question/210907

    Status: Answered => Open

wangxiaoliang is still having a problem:
thanks, luc. I have read the paper many times. I am simulating a sand of
relative density of 64%, a bit dense sample. I have calibrated like
Plassiard with my dense sample,however, at the last step ,I calibrate
for rolling stiffness, in the response, the macroscopic friction angle
doesn't change.

I generate my sample using a bit small friction angle, say 3.3 degree,
which corresponding relative density 64% of my experiment. I guess
calibration fails duo to this.

In your paper "on capillary stress tensor in wet granular materials",
you even used a smaller friction angle, say 0.2. In my experience, that
will result a very large dilatancy angle, usually larger than 20, but in
experiment it is usually about 10.

Actually, I am talking about the sample controlling parameters, somebody
use porosity, somebody use relative density, to be equal to that in the
real experiment. Which one is more appropriate?

-- 
You received this question notification because you are a member of
yade-users, which is an answer contact for Yade.