informations about packing
hi i'm new in YADE. I have a question about packing simulations. I m doing a particles deposition in a script and in another one i m doing a crash impact of a falling mass. The parameters of the falling mass are fixed. I have to work on a soil modeling. I m doing a lot of test and i notice that sometimes if i repeat two times the same deposition, and i export it in the script impact, i obtain different value of "force-impact". The results aren't so different but are different. I m near to the value that i have to reach, but now that i m not changing so much the deposition parameters value ( like poisson = 0.2 and then poisson=0.21 and same for young).
the problem is: (if i obtained a force impact of 420 kN with a young 16671305 and i change it in 15690640, that is lower, i obtain a higher value(470), and if i repeat the deposition with the same young i obtain again another value, near the first one but not the same. the %error is not so big but however we are talking about kN, but i m expected that repeating the test with the same value it will return the same result.
is something wrong on my code??
so is it possible that yade give me a range of values??
and if yes how can i avoid it and be more precision?
( the second script is always fixed, i only change the name of the "particles deposited positions" and upload the choosen material parameters)
script:
from yade import pack, plot
from yade import export, ymport
from yade import export, ymport
O.bodies.
pred=pack.
idSoil=
O.materials.
spheres=
O.bodies.
O.engines=[
ForceResetter(),
InsertionSor
InteractionLoop(
[
[
[
),
NewtonIntegr
PyRunner(
]
O.trackEnergy=True
#######
#######
#######
def checkUnbalanced():
if O.time > 2.5 :
O.pause()
export.
O.dt=.8*
O.run()
#O.stopAtIter=
O.saveTmp()
Question information
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- Yade Edit question
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- Solved by:
- Jan Stránský
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