Question #217265 on Yade changed:
https://answers.launchpad.net/yade/+question/217265
Sina Jafari proposed the following answer:
Hi Ogawa,
There is a command-line option you can use for parallel computing. For
example the following command will run the script using 4 threads(cores):
Yade -j4
New question #231633 on Yade:
https://answers.launchpad.net/yade/+question/231633
Dear all,
I'm having a problem regarding setting stress mask in triaxial example. I've
read other posts related to my problem but it still exists. I need STRAIN
controlled loading in the 2nd phase of trixial test.
Question #231633 on Yade changed:
https://answers.launchpad.net/yade/+question/231633
Sina Jafari posted a new comment:
Dear Nolan,
I've set different stress mask values but the problem is that I can't continue
loading in the 2nd stage which in my case should be by moving walls, the r
Question #231633 on Yade changed:
https://answers.launchpad.net/yade/+question/231633
Status: Answered => Open
Sina Jafari is still having a problem:
Dear Nguyen,
Here are answers to your questions:
1- It was in the original example and I decided not to change it in my script
and I think
Question #231633 on Yade changed:
https://answers.launchpad.net/yade/+question/231633
Sina Jafari gave more information on the question:
Dear Bruno,
Thanks for your answer. Actually I'm using the same example but the point is
that I can't continue loading in the 2nd stage by moving
Question #231633 on Yade changed:
https://answers.launchpad.net/yade/+question/231633
Status: Open => Solved
Sina Jafari confirmed that the question is solved:
I checked my script and figured out the problem. I wasn't considering
the newton engine when adding pyrunner engines at th
New question #232351 on Yade:
https://answers.launchpad.net/yade/+question/232351
Dear all,
How can we define viscous damping in YADE specifically Mass proportional
damping? Is it possible at all?
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Question #232351 on Yade changed:
https://answers.launchpad.net/yade/+question/232351
Status: Answered => Open
Sina Jafari is still having a problem:
Hi, I'm referring to the one mentioned in a paper by Ng entitled: "Input
Parameters of Discrete Element Methods"
you can fi
Question #232351 on Yade changed:
https://answers.launchpad.net/yade/+question/232351
Sina Jafari gave more information on the question:
By the way He's using Hertzian normal and simplified mindlin's
tangential contact laws.
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Question #232351 on Yade changed:
https://answers.launchpad.net/yade/+question/232351
Status: Answered => Solved
Sina Jafari confirmed that the question is solved:
Thanks Christian Jakob, that solved my question.
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New question #239685 on Yade:
https://answers.launchpad.net/yade/+question/239685
Dear all,
How can I save contact forces or any other data at CERTAIN STRESSES? for
example I want to have some data ONLY at mean Stresses of 1,2,3 and 4 Mpa. I
know how to save data using pyrunner engine but it can
Question #239685 on Yade changed:
https://answers.launchpad.net/yade/+question/239685
Status: Answered => Open
Sina Jafari is still having a problem:
Dear Jan,
Thanx for your answer and sorry for my delay, Unfortunately the lines you
mentioned don't work in my script,nothing happens
Question #239685 on Yade changed:
https://answers.launchpad.net/yade/+question/239685
Status: Open => Solved
Sina Jafari confirmed that the question is solved:
Thanks Jan Stránský, that solved my question.
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New question #241108 on Yade:
https://answers.launchpad.net/yade/+question/241108
Dear all,
I want to use mindlin-Deresiewicz contact law but there is a broblem with the
output. Tangential forces aquired from the model are all equal to zero! why is
it happening? It seems no friction is taken int
Question #241108 on Yade changed:
https://answers.launchpad.net/yade/+question/241108
Status: Answered => Open
Sina Jafari is still having a problem:
for example in the following script I have modified the triaxial example script
a little bit to study the effect of contact law on the out
New question #246254 on Yade:
https://answers.launchpad.net/yade/+question/246254
hi all,
I'm working on triax example. I changed contact law to mindlin and tried to run
the simulation again but in radius expansion(internal compaction) phase, UNREAL
results appear which are not acceptable and do
Question #241108 on Yade changed:
https://answers.launchpad.net/yade/+question/241108
Status: Answered => Solved
Sina Jafari confirmed that the question is solved:
Thanks Chiara Modenese, that solved my question.
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New question #246936 on Yade:
https://answers.launchpad.net/yade/+question/246936
Hi all,
How can I use snapshot engine at certain stresses? I want to save an image of
interaction network every 200 kPa? would be thankful if you help me with that.
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Question #246254 on Yade changed:
https://answers.launchpad.net/yade/+question/246254
Status: Open => Solved
Sina Jafari confirmed that the question is solved:
I changed input parameters and everything got back to normal.
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New question #247136 on Yade:
https://answers.launchpad.net/yade/+question/247136
hi all,
I tried to create polar interaction histogram using interaction-histogram.py
for my simulation but the problem is that nothing is plotted in the output
file. I'm using utils.plotDirections() at the same tim
Question #247136 on Yade changed:
https://answers.launchpad.net/yade/+question/247136
Sina Jafari gave more information on the question:
def Intrhisto():
# axis normal to the plane in which we do the histogram
axis=2 # x, i.e. plot the xy plane
ax1,ax2=(axis+0)%3,(axis+1
Question #247136 on Yade changed:
https://answers.launchpad.net/yade/+question/247136
Status: Answered => Solved
Sina Jafari confirmed that the question is solved:
Thanks jduriez, that solved my question.
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New question #247174 on Yade:
https://answers.launchpad.net/yade/+question/247174
hi all,
I have recorded interaction data successfully into a file but I don't want
interaction data type of facet-sphere to be recorded. I don't know how to
exclude these data so that they are not written in the ou
Question #247174 on Yade changed:
https://answers.launchpad.net/yade/+question/247174
Sina Jafari posted a new comment:
Thanks Hien Nguyen
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Question #247174 on Yade changed:
https://answers.launchpad.net/yade/+question/247174
Status: Answered => Solved
Sina Jafari confirmed that the question is solved:
Thanks jduriez, that solved my question.
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Question #246936 on Yade changed:
https://answers.launchpad.net/yade/+question/246936
Status: Answered => Open
Sina Jafari is still having a problem:
Thank you so much Jan it works perfectly for me. Now I have another
question: I want to put the current stress in the NAME of the output
f
Question #246936 on Yade changed:
https://answers.launchpad.net/yade/+question/246936
Status: Answered => Open
Sina Jafari is still having a problem:
Thanks Jan it was helpful, going back to the previous discussion I tried to add
another method to the class created above but the problem
Question #246936 on Yade changed:
https://answers.launchpad.net/yade/+question/246936
Status: Answered => Solved
Sina Jafari confirmed that the question is solved:
Thanks Jan Stránský, that solved my question.
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Question #246936 on Yade changed:
https://answers.launchpad.net/yade/+question/246936
Sina Jafari posted a new comment:
Tnanks a million Jan, You solved all of my problems with that! :)
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Question #246936 on Yade changed:
https://answers.launchpad.net/yade/+question/246936
Sina Jafari posted a new comment:
Thanks a million Jan, You solved all of my problems with that! :)
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New question #247465 on Yade:
https://answers.launchpad.net/yade/+question/247465
hi all, I want to create shear force histogram. So I thought of the following
script to use for calculation and plotting the shear force histogram. my
question is that is the algorithm presneted correct or not? tha
New question #247689 on Yade:
https://answers.launchpad.net/yade/+question/247689
Hi all,
I've read almost every post on contact laws but still I have some questions!
1. I'm trying to model a packing of spheres using mindlin law. My simulation
tends to be quasi-static keeping UFI value as low a
Question #247465 on Yade changed:
https://answers.launchpad.net/yade/+question/247465
Status: Needs information => Open
Sina Jafari gave more information on the question:
Thanks Alexander,
Actually I'm using triaxial example but with some differences: 1- My loading is
strain contr
Question #247465 on Yade changed:
https://answers.launchpad.net/yade/+question/247465
Sina Jafari gave more information on the question:
here is my full script:
# -*- coding: utf-8 -*-
#*
# Copyright (C) 2010 by Bruno
Question #247689 on Yade changed:
https://answers.launchpad.net/yade/+question/247689
Status: Answered => Solved
Sina Jafari confirmed that the question is solved:
Thanks Václav Šmilauer, that solved my question.
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New question #247852 on Yade:
https://answers.launchpad.net/yade/+question/247852
Hi all,
I wanted to know that the O.interactions container stores contact data
according to the number of contacts of each body? for example if body with id=0
(fisrt body that is created in a simulation) has 20 int
Question #247852 on Yade changed:
https://answers.launchpad.net/yade/+question/247852
Status: Answered => Solved
Sina Jafari confirmed that the question is solved:
Thanks Jérôme Duriez, that solved my question.
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New question #248341 on Yade:
https://answers.launchpad.net/yade/+question/248341
Hi everyone,
I've got a question regarding numerical stability of a simulation. When do we
call a simulation "quasi-static" ? If we keep the unbalanced force index value
under say 0.01 to 0.02, does that mean we ar
Question #247465 on Yade changed:
https://answers.launchpad.net/yade/+question/247465
Status: Open => Solved
Sina Jafari confirmed that the question is solved:
I figured out that if you find the average of forces in each direction,
you can draw polar histogram of forces easily.
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Question #248341 on Yade changed:
https://answers.launchpad.net/yade/+question/248341
Status: Answered => Open
Sina Jafari is still having a problem:
Thank you very much Bruno and Jan.
The reason why I asked this question is that I want to study fabric evolution
in a granular packing un
Question #248341 on Yade changed:
https://answers.launchpad.net/yade/+question/248341
Status: Answered => Open
Sina Jafari is still having a problem:
Thanks Bruno, Actually results change significantly when loading rate
increases. How can I force the system to become static at this point
Question #248341 on Yade changed:
https://answers.launchpad.net/yade/+question/248341
Status: Answered => Solved
Sina Jafari confirmed that the question is solved:
Thank you very much Bruno, I answer your questions as follows:
1- I'm using globalstiffnesstimestepper, so yes I think I
New question #249117 on Yade:
https://answers.launchpad.net/yade/+question/249117
Hello everyone,
I'm using density scaling in a quasi-static simulation to speed up but I've got
some problems:
1. I changed densityScaling to True in newton engine and also changed
densityScaling to True in timest
Question #249117 on Yade changed:
https://answers.launchpad.net/yade/+question/249117
Status: Answered => Open
Sina Jafari is still having a problem:
Thanks Bruno that helped a lot... How can I determine the suitable value
for targetDt? Is there a limit or something? and generally d
Question #249117 on Yade changed:
https://answers.launchpad.net/yade/+question/249117
Status: Answered => Solved
Sina Jafari confirmed that the question is solved:
Thanks Bruno Chareyre, that solved my question.
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New question #249589 on Yade:
https://answers.launchpad.net/yade/+question/249589
Hi everyone,
I encountered a problem regarding loading of files in YADE. I ran a triaxial
simulation and confined state was successfully reached and saved! then I quit
YADE and tried to load the saved state file (c
Question #249589 on Yade changed:
https://answers.launchpad.net/yade/+question/249589
Status: Answered => Open
Sina Jafari is still having a problem:
Thanks Jan,
Actually I had an initial script( e.g. triaxial example script) and I got the
confined state output file! now I want to conti
Question #249589 on Yade changed:
https://answers.launchpad.net/yade/+question/249589
Sina Jafari confirmed that the question is solved:
Thanks Jan Stránský, that solved my question.
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Question #249589 on Yade changed:
https://answers.launchpad.net/yade/+question/249589
Status: Answered => Solved
Sina Jafari confirmed that the question is solved:
Thank You very much Jan. You saved me! :)
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Question #249589 on Yade changed:
https://answers.launchpad.net/yade/+question/249589
Status: Solved => Open
Sina Jafari is still having a problem:
Hi Jan,
Actually I did what you said and there aren't errors any longer but the problem
is that the packing explodes when I try to
Question #249589 on Yade changed:
https://answers.launchpad.net/yade/+question/249589
Status: Open => Solved
Sina Jafari confirmed that the question is solved:
I had forgotten something! I put load command after defining engines so
my simulation didn't recognise that I had them! I
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