[Yade-users] [Question #240024]: how to get interaction attribute from interacting particles ids

2013-11-29 Thread Luc Scholtès
New question #240024 on Yade: https://answers.launchpad.net/yade/+question/240024 Hi all, Just wondering if there is a "simple" way to access interaction attribute (like intr->phys->tangensOfFrictionAngle) when the pair of interacting particles (id1 and id2) is known. For now, I am looping ove

Re: [Yade-users] [Question #240024]: how to get interaction attribute from interacting particles ids

2013-11-29 Thread Luc Scholtès
Question #240024 on Yade changed: https://answers.launchpad.net/yade/+question/240024 Status: Answered => Open Luc Scholtès is still having a problem: Many thanks to both of you. Actually, I was expecting there was an easy way with python but I would like to implement my search function

Re: [Yade-users] [Question #240024]: how to get interaction attribute from interacting particles ids

2013-11-29 Thread Luc Scholtès
Question #240024 on Yade changed: https://answers.launchpad.net/yade/+question/240024 Status: Answered => Solved Luc Scholtès confirmed that the question is solved: Many thanks guys Cheers Luc -- You received this question notification because you are a member of yade-users, which is

[Yade-users] [Question #251530]: PhD position: Hydrodynamics and particle transport modelling

2014-07-11 Thread Luc Scholtès
New question #251530 on Yade: https://answers.launchpad.net/yade/+question/251530 Dear all, A PhD opportunity in the research field of Hydrodynamics and Transport Processes is available at University of Lorraine in Nancy, France. Applicants are invited for a three years PhD scholarship in the H

Re: [Yade-users] [Question #229380]: volume of the meniscus in capillary test

2014-09-10 Thread Luc Scholtès
Question #229380 on Yade changed: https://answers.launchpad.net/yade/+question/229380 Luc Scholtès proposed the following answer: Hi Seungcheol, Phys functors give information on the interaction between two interacting bodies. CapillaryPhys "parameters" are thus variables rather than

Re: [Yade-users] [Question #254705]: Wetting angle and capillary files

2014-09-19 Thread Luc Scholtès
Question #254705 on Yade changed: https://answers.launchpad.net/yade/+question/254705 Status: Open => Answered Luc Scholtès proposed the following answer: Hi Jerome, You are absolutely right, the solutions provided in the capillary files correspond to a wetting angle of 0 degrees.

Re: [Yade-users] [Question #257388]: Creating a pack with Nc more than 6

2014-11-13 Thread Luc Scholtès
Question #257388 on Yade changed: https://answers.launchpad.net/yade/+question/257388 Luc Scholtès posted a new comment: I would just add that, as Bruno said, Nc>5 is not possible with DEM using SPHERICAL particles. However, it is conceivable by using non spherical particles (e.g clumps

Re: [Yade-users] [Question #263072]: Manipulating blocks created using jointedCohesiveFrictionalPM

2015-03-06 Thread Luc Scholtès
Question #263072 on Yade changed: https://answers.launchpad.net/yade/+question/263072 Luc Scholtès proposed the following answer: Hi Veljko, After the first identification stage (DFN over sphere packing with lots of particles), you could try to identify the cohesive blocks (the ones in between

[Yade-users] [Question #291149]: compilation error related to CHOLMOD

2016-04-15 Thread Luc Scholtès
New question #291149 on Yade: https://answers.launchpad.net/yade/+question/291149 Hi guys, I am currently trying to install yade (got it from: git clone https://github.com/yade/trunk.git) on a new machine (ubuntu 14.04) and I come across this error during the compilation: [23%] Building CXX o

Re: [Yade-users] [Question #290129]: calculation of external work

2016-05-23 Thread Luc Scholtès
Question #290129 on Yade changed: https://answers.launchpad.net/yade/+question/290129 Luc Scholtès posted a new comment: Hi guys, Building up on this question, is there any reason for not computing the external work in triaxial loadings when the walls are strain controlled rather than stress

Re: [Yade-users] [Question #290129]: calculation of external work

2016-05-26 Thread Luc Scholtès
Question #290129 on Yade changed: https://answers.launchpad.net/yade/+question/290129 Luc Scholtès proposed the following answer: Thanks Bruno for your answer. As I said, I probably missed something since, in the version I use, the external work is only computed in TriaxialStressController

[Yade-users] [Question #403534]: How to make certain particles "invisibles" to others?

2016-10-27 Thread Luc Scholtès
New question #403534 on Yade: https://answers.launchpad.net/yade/+question/403534 Hi guys, What would you suggest in order to make certain particles "invisible" to others while keeping them in the simulation? I know that particles can be deleted using the erase function but it is not satisfact

Re: [Yade-users] [Question #403534]: How to make certain particles "invisibles" to others?

2016-10-27 Thread Luc Scholtès
Question #403534 on Yade changed: https://answers.launchpad.net/yade/+question/403534 Status: Answered => Open Luc Scholtès is still having a problem: Yes, by "invisible" I mean that they won't interact with other (and that will happen during the simulation so their state

Re: [Yade-users] [Question #403534]: How to make certain particles "invisibles" to others?

2016-10-27 Thread Luc Scholtès
Question #403534 on Yade changed: https://answers.launchpad.net/yade/+question/403534 Luc Scholtès posted a new comment: OK, many thanks guys. I see now more clearly how to use groupmask. I am still not sure this would be the best way to deal with my problem since the particles that I want to

Re: [Yade-users] [Question #403846]: JCF Contac Law

2016-11-07 Thread Luc Scholtès
Question #403846 on Yade changed: https://answers.launchpad.net/yade/+question/403846 Status: Open => Answered Luc Scholtès proposed the following answer: Hello Luis, Firstly, you don't need to have 2 Ip2_JCFpmMat_JCFpmMat_JCFpmPhy functors defined in your script (actually, the scr

[Yade-users] [Question #404534]: Control edge length in Tesselation Wrapper?

2016-11-30 Thread Luc Scholtès
New question #404534 on Yade: https://answers.launchpad.net/yade/+question/404534 Hi guys, I had a look at Tesselation Wrapper but could not really find where to start from. I run simulations where the packing has an initial hole in it which is significantly bigger than the particles and I wou

Re: [Yade-users] [Question #404534]: Control edge length in Tesselation Wrapper?

2016-12-05 Thread Luc Scholtès
Question #404534 on Yade changed: https://answers.launchpad.net/yade/+question/404534 Luc Scholtès posted a new comment: Unfortunately, I cannot download the file but thanks anyway for your answer. I did not think it would be so problematic to restrain the tesselation to a certain range (by

Re: [Yade-users] [Question #432617]: How to plot damage ratio curve

2017-01-08 Thread Luc Scholtès
Question #432617 on Yade changed: https://answers.launchpad.net/yade/+question/432617 Status: Open => Answered Luc Scholtès proposed the following answer: Hi Tina, If you are using cohFrictMat, I guess that you are also using cohFrictPhys and Law2_ScGeom6D_CohFrictPhys_CohesionMoment (ri

Re: [Yade-users] [Question #440408]: visualization cohesive and non-cohesive bonds of an JCFpm model in paraview

2017-01-16 Thread Luc Scholtès
Question #440408 on Yade changed: https://answers.launchpad.net/yade/+question/440408 Status: Open => Answered Luc Scholtès proposed the following answer: Hi Alma, If you add 'jcfpm' in the VTKRecorder's recorders options (VTKRecorder(option1, option2, ..., recorders=

[Yade-users] [Question #464303]: update BC in flowEngine

2017-02-17 Thread Luc Scholtès
New question #464303 on Yade: https://answers.launchpad.net/yade/+question/464303 Hello guys, I am currently using flowEngine to compute permeability of samples subjected to compressive loading. I would like to compute permeabilities along the 3 directions at different stages of the loading. T

Re: [Yade-users] [Question #465653]: export dissipated energy in a vtk files

2017-02-18 Thread Luc Scholtès
Question #465653 on Yade changed: https://answers.launchpad.net/yade/+question/465653 Status: Open => Answered Luc Scholtès proposed the following answer: Hello Jabrane, You just have to add a column in the crack file that is generated from the simulation (the one where are defined th

Re: [Yade-users] [Question #464303]: update BC in flowEngine

2017-02-18 Thread Luc Scholtès
Question #464303 on Yade changed: https://answers.launchpad.net/yade/+question/464303 Luc Scholtès confirmed that the question is solved: Thanks Bruno Chareyre, that solved my question. -- You received this question notification because your team yade-users is an answer contact for Yade

Re: [Yade-users] [Question #464303]: update BC in flowEngine

2017-02-18 Thread Luc Scholtès
Question #464303 on Yade changed: https://answers.launchpad.net/yade/+question/464303 Status: Answered => Solved Luc Scholtès confirmed that the question is solved: Many thanks Bruno. -- You received this question notification because your team yade-users is an answer contact for Y

Re: [Yade-users] [Question #515400]: Introduction of defects

2017-03-03 Thread Luc Scholtès
Question #515400 on Yade changed: https://answers.launchpad.net/yade/+question/515400 Luc Scholtès posted a new comment: Hi, If you want to include actual material defects such as weakness planes, have a look at the JCFPM class which was designed to take into account fracture networks into the

Re: [Yade-users] [Question #432617]: How to plot damage ratio curve

2017-03-08 Thread Luc Scholtès
Question #432617 on Yade changed: https://answers.launchpad.net/yade/+question/432617 Status: Open => Answered Luc Scholtès proposed the following answer: Apparently, you divide something by zero... Did you check the value of sumCohBonds by printing it before using it in your funct

Re: [Yade-users] [Question #549040]: Poison coefficient calibration

2017-03-10 Thread Luc Scholtès
Question #549040 on Yade changed: https://answers.launchpad.net/yade/+question/549040 Luc Scholtès proposed the following answer: The problem is that modifying this ratio will cause modification of other macromechanical properties such as the strength... it might be a non solvable problem in the

Re: [Yade-users] [Question #556907]: Apply cohesive interaction on JCFpmMat

2017-03-13 Thread Luc Scholtès
Question #556907 on Yade changed: https://answers.launchpad.net/yade/+question/556907 Status: Open => Answered Luc Scholtès proposed the following answer: Hi, Yes, there is an easier way. Juste define the material parameters in such lines: def sphereMat(): return JCFpmMat(type=1,dens

Re: [Yade-users] [Question #556907]: Apply cohesive interaction on JCFpmMat

2017-03-13 Thread Luc Scholtès
Question #556907 on Yade changed: https://answers.launchpad.net/yade/+question/556907 Status: Open => Answered Luc Scholtès proposed the following answer: I guess that using the labels, you can get what you want. Here is a suggestion that actually I never used myself since I prepare my de

Re: [Yade-users] [Question #432617]: How to plot damage ratio curve

2017-03-13 Thread Luc Scholtès
Question #432617 on Yade changed: https://answers.launchpad.net/yade/+question/432617 Status: Open => Answered Luc Scholtès proposed the following answer: Hum... A stupid question but do you initialize numBroCohBonds to zero each time you compute it? What happens if you include a pr

Re: [Yade-users] [Question #556907]: Apply cohesive interaction on JCFpmMat

2017-03-14 Thread Luc Scholtès
Question #556907 on Yade changed: https://answers.launchpad.net/yade/+question/556907 Status: Open => Answered Luc Scholtès proposed the following answer: Sorry Weijy but I got a bit lost... It should not be so difficult to make this work. Could you please send a working script so tha

Re: [Yade-users] [Question #562184]: I want to know the the proper constitute law for rock

2017-03-15 Thread Luc Scholtès
Question #562184 on Yade changed: https://answers.launchpad.net/yade/+question/562184 Status: Open => Answered Luc Scholtès proposed the following answer: Hi, Have a look at the JCFPM class which has been used for modelling of rock like materials: See for instance: - h

Re: [Yade-users] [Question #556907]: Apply cohesive interaction on JCFpmMat

2017-03-19 Thread Luc Scholtès
Question #556907 on Yade changed: https://answers.launchpad.net/yade/+question/556907 Luc Scholtès proposed the following answer: Hi Weijy, Sorry for not working directly on your script but I found it easier to actually send you a script that I used to obtain the results presented in the paper

Re: [Yade-users] [Question #575488]: Unexpected unbalancedForce when loading jcfpmMat sphere from txt file

2017-03-20 Thread Luc Scholtès
Question #575488 on Yade changed: https://answers.launchpad.net/yade/+question/575488 Status: Open => Answered Luc Scholtès proposed the following answer: Hi Weijy, Sorry but I get a bit confused. You create an assembly by running an internal compaction and write it in a text file. T

Re: [Yade-users] [Question #611087]: I got a wrong damage ratio

2017-04-06 Thread Luc Scholtès
Question #611087 on Yade changed: https://answers.launchpad.net/yade/+question/611087 Status: Open => Answered Luc Scholtès proposed the following answer: I see 2 potential problematic reasons why you get your damage ration >1: 1) you don't use the same condition for checkin

Re: [Yade-users] [Question #611087]: I got a wrong damage ratio

2017-04-06 Thread Luc Scholtès
Question #611087 on Yade changed: https://answers.launchpad.net/yade/+question/611087 Luc Scholtès proposed the following answer: Sorry, for wrong use of keyboard shortcut... I try another time here: I see 2 potential reasons why you get your damage ratio >1: 1) you don't use the same c

[Yade-users] [Question #626563]: ubuntu 16.04: Missing dependency for LINSOLV

2017-04-23 Thread Luc Scholtès
New question #626563 on Yade: https://answers.launchpad.net/yade/+question/626563 Hi there, I tried to make a fresh install of yade source code on Ubuntu 16.04 and faced a problem related to Metis. Here is what I get when doing sudo apt-get install libsuitesparse-metis-dev: Package 'libsuitesp

Re: [Yade-users] [Question #626563]: ubuntu 16.04: Missing dependency for LINSOLV

2017-04-24 Thread Luc Scholtès
Question #626563 on Yade changed: https://answers.launchpad.net/yade/+question/626563 Status: Answered => Solved Luc Scholtès confirmed that the question is solved: Thanks Robert, the dependencies now exists. It seems that several instructions need to be updated on the online doc. I

[Yade-users] [Question #626592]: Update documentation for clean installation on ubuntu 16.04

2017-04-24 Thread Luc Scholtès
New question #626592 on Yade: https://answers.launchpad.net/yade/+question/626592 Hi folks, As mentioned in previous question, I am now trying to install yade on ubuntu 16.04. According to the problems and warnings I face during the installation process, there is something missing in the onli

Re: [Yade-users] [Question #295951]: yade on kubuntu 16.04

2017-04-24 Thread Luc Scholtès
Question #295951 on Yade changed: https://answers.launchpad.net/yade/+question/295951 Luc Scholtès posted a new comment: Sorry to dig this one up but did you find how to solve this problem? I face similar issues working on ubuntu 16.04... Luc -- You received this question notification because

Re: [Yade-users] [Question #626592]: Update documentation for clean installation on ubuntu 16.04

2017-04-25 Thread Luc Scholtès
Question #626592 on Yade changed: https://answers.launchpad.net/yade/+question/626592 Luc Scholtès gave more information on the question: Thanks Robert for your time and help. Unfortunately, I am still struggling and it is very annoying... I don't understand as I even reinstalled ubuntu

Re: [Yade-users] [Question #626592]: Update documentation for clean installation on ubuntu 16.04

2017-04-26 Thread Luc Scholtès
Question #626592 on Yade changed: https://answers.launchpad.net/yade/+question/626592 Luc Scholtès gave more information on the question: The problem occurring when launching a python script (e.g. yade script.py) is "solved" according to Klaus workaround described he

Re: [Yade-users] [Question #273426]: Calculate the energy released when the bond between two particles breaks

2017-05-11 Thread Luc Scholtès
Question #273426 on Yade changed: https://answers.launchpad.net/yade/+question/273426 Luc Scholtès posted a new comment: Hi, Have a look at the latest commit where all you need is available directly from the JCFPM law functor. Have a look at the example provided (examples

Re: [Yade-users] [Question #633047]: calculate the overall energy in JCFpmMat

2017-05-19 Thread Luc Scholtès
Question #633047 on Yade changed: https://answers.launchpad.net/yade/+question/633047 Luc Scholtès proposed the following answer: Hi Xavier, In addition to Robert's comment I must say that you need to call the functionality correctly. Yade does not "know" what is totalShearCrack

Re: [Yade-users] [Question #635871]: Bonded Particle Model using JCFpmMat

2017-05-29 Thread Luc Scholtès
Question #635871 on Yade changed: https://answers.launchpad.net/yade/+question/635871 Status: Open => Answered Luc Scholtès proposed the following answer: Hi Xavier, yes, you are right, the contact bond model is irrelevant with respect to bending or twisting resistance. These features

Re: [Yade-users] [Question #635871]: Bonded Particle Model using JCFpmMat

2017-05-30 Thread Luc Scholtès
Question #635871 on Yade changed: https://answers.launchpad.net/yade/+question/635871 Status: Open => Answered Luc Scholtès proposed the following answer: Hi Xavier, I am not sure that sending you my script would really help since there is nothing more in it (a line before to launc

Re: [Yade-users] [Question #643123]: Two questions on JCFpmPhys

2017-06-12 Thread Luc Scholtès
Question #643123 on Yade changed: https://answers.launchpad.net/yade/+question/643123 Luc Scholtès posted a new comment: For the first point (number of intact bonds before loading), you can follow Robert's advice (loop over interactions and find those which are cohesive). For the second poi

Re: [Yade-users] [Question #643660]: A simple question on interactionDetectionFactor

2017-06-13 Thread Luc Scholtès
Question #643660 on Yade changed: https://answers.launchpad.net/yade/+question/643660 Status: Open => Answered Luc Scholtès proposed the following answer: Hello, We mentioned intR<1.5 for Rmax/Rmin=2 so the near neighbour interactions keep conceptually "representative

Re: [Yade-users] [Question #655521]: using TriAxialstressController obtain volume origin and size

2017-08-18 Thread Luc Scholtès
Question #655521 on Yade changed: https://answers.launchpad.net/yade/+question/655521 Luc Scholtès posted a new comment: Hey, You might also use this function: https://yade- dem.org/doc/yade.utils.html?highlight=aabbextrema#yade._utils.aabbExtrema Then you can get the coordinates of the min

[Yade-users] [Question #657114]: Computing lateral strains in uniaxial tension tests

2017-08-29 Thread Luc Scholtès
New question #657114 on Yade: https://answers.launchpad.net/yade/+question/657114 Hello all, What would be the "simplest" way to compute the lateral strains in a uniaxial tension test (performed with uniaxialStrainer)? Is there already a function that I could use? At the moment, the only option t

[Yade-users] [Question #657115]: Stress/strain probe?

2017-08-29 Thread Luc Scholtès
New question #657115 on Yade: https://answers.launchpad.net/yade/+question/657115 Hello again, To pursue with my objective to measure stress and strain in every kind of configuration, I would like to ask if there is already something in YADE that could be use to measure these quantities in subvo

Re: [Yade-users] [Question #657216]: Smooth joint Model and Love-Weber stress calculation

2017-09-01 Thread Luc Scholtès
Question #657216 on Yade changed: https://answers.launchpad.net/yade/+question/657216 Luc Scholtès proposed the following answer: Hi, Did not think about this before but I guess it could be a bit tricky if you work with a volume of particles containing a persistent through going joint for

Re: [Yade-users] [Question #654642]: installation of Yade in Mac OS X

2017-09-07 Thread Luc Scholtès
Question #654642 on Yade changed: https://answers.launchpad.net/yade/+question/654642 Luc Scholtès proposed the following answer: Hello Ozge, The error you mentioned is not related to Yade install at all. It is related to a line in one of your python scripts. More specifically, it is related to

Re: [Yade-users] [Question #657858]: how the local residual friction angle is determined

2017-09-11 Thread Luc Scholtès
Question #657858 on Yade changed: https://answers.launchpad.net/yade/+question/657858 Luc Scholtès proposed the following answer: Hello Jabrane, As mentioned by Jerome, in the current version of the code, phi_b = phi_c = phi, so whatever the state of the contact (cohesive or not), phi is used

Re: [Yade-users] [Question #658902]: Modeling fractured rocks

2017-10-03 Thread Luc Scholtès
Question #658902 on Yade changed: https://answers.launchpad.net/yade/+question/658902 Status: Open => Answered Luc Scholtès proposed the following answer: Hello, Here are some answers: 1) and 2): calibration of DEM models is a difficult task if you want it to be relevant. Many DEM/

[Yade-users] [Question #658930]: Apply forces on a list of bodies (dummy equivalent to fluid pressure)

2017-10-04 Thread Luc Scholtès
New question #658930 on Yade: https://answers.launchpad.net/yade/+question/658930 Hi folks, I am currently looking for a way to simulate pressurization without the need to call for the flow engine (not yet). The idea is quite simple: 1) create a pre existing fracture inside a given bonded part

[Yade-users] [Question #659557]: Flow engine working randomly with CHOLMOD

2017-10-16 Thread Luc Scholtès
New question #659557 on Yade: https://answers.launchpad.net/yade/+question/659557 Hi folks, I face a very strange behavior with the flow engine. With useSolver=3, the same simulation can either work on not. More precisely, the flow can be computed or not depending on... well, I don't know... F

Re: [Yade-users] [Question #659557]: Flow engine working randomly with CHOLMOD

2017-10-17 Thread Luc Scholtès
Question #659557 on Yade changed: https://answers.launchpad.net/yade/+question/659557 Status: Needs information => Open Luc Scholtès gave more information on the question: Hi Bruno, Thank you for the prompt answer. Here is what the ldd command gives: linux-vdso.s

Re: [Yade-users] [Question #659557]: Flow engine working randomly with CHOLMOD

2017-10-17 Thread Luc Scholtès
Question #659557 on Yade changed: https://answers.launchpad.net/yade/+question/659557 Status: Answered => Open Luc Scholtès is still having a problem: Hi Robert, Thank you for your advice but I already did that... twice... I even removed yade and yadedaily and reinstalled them. Always

Re: [Yade-users] [Question #659557]: Flow engine working randomly with CHOLMOD

2017-10-17 Thread Luc Scholtès
Question #659557 on Yade changed: https://answers.launchpad.net/yade/+question/659557 Luc Scholtès gave more information on the question: Typically, here is what I get: Qin= -308.240063332 Qout= 0.0 Permeability [m2]= 0.0 || Hydraulic conductivity [m/s]= 0.0 and when I open the vtk file, I

Re: [Yade-users] [Question #659557]: Flow engine working randomly with CHOLMOD

2017-10-19 Thread Luc Scholtès
Question #659557 on Yade changed: https://answers.launchpad.net/yade/+question/659557 Luc Scholtès gave more information on the question: Before reinstalling ubuntu 14, I would liek to ask if this problem coul dbe related to the libsuitesparse-metis-dev that needs to be install (cf. yade

Re: [Yade-users] [Question #659557]: Flow engine working randomly with CHOLMOD

2017-10-19 Thread Luc Scholtès
Question #659557 on Yade changed: https://answers.launchpad.net/yade/+question/659557 Status: Answered => Open Luc Scholtès is still having a problem: Alright... I reinstalled ubuntu (16.04.3) and reinstalled yade (git version): It seems to work correctly now. Why? I don

Re: [Yade-users] [Question #659557]: Flow engine working randomly with CHOLMOD

2017-10-19 Thread Luc Scholtès
Question #659557 on Yade changed: https://answers.launchpad.net/yade/+question/659557 Status: Answered => Open Luc Scholtès is still having a problem: Here you go. It fails every time. Of course, you'll have to create your own packing (cf PACK parameter in the first lines). Also, I

Re: [Yade-users] [Question #659557]: Flow engine working randomly with CHOLMOD

2017-10-19 Thread Luc Scholtès
Question #659557 on Yade changed: https://answers.launchpad.net/yade/+question/659557 Status: Answered => Open Luc Scholtès is still having a problem: Yes, same problem with either FlowEngine or DFNFlowEngine (which is kind of reassuring and "logical"): the flow is not computed.

Re: [Yade-users] [Question #659557]: Flow engine working randomly with CHOLMOD

2017-10-19 Thread Luc Scholtès
Question #659557 on Yade changed: https://answers.launchpad.net/yade/+question/659557 Luc Scholtès posted a new comment: FYI, the O.reset() script works with yade installed from sudo-apt get installed yade (yade 1.20.0). -- You received this question notification because your team yade-users is

Re: [Yade-users] [Question #659557]: Flow engine working randomly with CHOLMOD

2017-10-23 Thread Luc Scholtès
Question #659557 on Yade changed: https://answers.launchpad.net/yade/+question/659557 Status: Answered => Open Luc Scholtès is still having a problem: Hi guys, I reinstalled everything from scratch (ubuntu 16.04 LTS and yade from git). The problem persists and I cannot figure out what

Re: [Yade-users] [Question #659557]: Flow engine working randomly with CHOLMOD

2017-10-24 Thread Luc Scholtès
Question #659557 on Yade changed: https://answers.launchpad.net/yade/+question/659557 Status: Answered => Open Luc Scholtès is still having a problem: - OK for the boundaryUseMaxMin=[1,1,1,1,1,1] . I misunderstood the doc. - For the calibration of the coordination number, yes, we could

Re: [Yade-users] [Question #659557]: Flow engine working randomly with CHOLMOD

2017-10-25 Thread Luc Scholtès
Question #659557 on Yade changed: https://answers.launchpad.net/yade/+question/659557 Status: Answered => Solved Luc Scholtès confirmed that the question is solved: Well, you are right, I made a mistake in my script when asking for the Qin and Qout. It gives the correct result if, of cou

Re: [Yade-users] [Question #659557]: Flow engine working randomly with CHOLMOD

2017-10-27 Thread Luc Scholtès
Question #659557 on Yade changed: https://answers.launchpad.net/yade/+question/659557 Luc Scholtès posted a new comment: Hi, Just an additional comment: Running my simulations with debug=1, I obtain the exact same output when it works and when it does not work. Even at the very last line of

Re: [Yade-users] [Question #659557]: Flow engine working randomly with CHOLMOD

2017-11-07 Thread Luc Scholtès
Question #659557 on Yade changed: https://answers.launchpad.net/yade/+question/659557 Status: Solved => Open Luc Scholtès is still having a problem: Hi, Just to confirm that I don't have the random behavior with yade 2017.10.a as mentioned by Lingran. Why? I have no idea but I

Re: [Yade-users] [Question #659557]: Flow engine working randomly with CHOLMOD

2017-11-07 Thread Luc Scholtès
Question #659557 on Yade changed: https://answers.launchpad.net/yade/+question/659557 Luc Scholtès posted a new comment: Robert, you made my day! There was another problem linked to the declaration of the trickPermeability() function but, your bug report was what I was looking for. It seems that

Re: [Yade-users] [Question #659557]: Flow engine working randomly with CHOLMOD

2017-11-08 Thread Luc Scholtès
Question #659557 on Yade changed: https://answers.launchpad.net/yade/+question/659557 Luc Scholtès posted a new comment: Yes, DFNFlow is not the problem. The randomness appears with the "whole FlowEngine". Sorry if my message made you think so. Since it seems that my version built fr

Re: [Yade-users] [Question #660585]: Why avoid reseting particle positions in DFNFlow?

2017-11-13 Thread Luc Scholtès
Question #660585 on Yade changed: https://answers.launchpad.net/yade/+question/660585 Luc Scholtès posted a new comment: Hi Robert, I can tell that Timos set updatePositions=false in the scripts he sent me lately. I actually tried to run the same simulation (hydraulic injection as described in

[Yade-users] [Question #662105]: simulation explodes as soon as flow engine is activated

2017-12-22 Thread Luc Scholtès
New question #662105 on Yade: https://answers.launchpad.net/yade/+question/662105 Hello there, I have been struggling with this for a while now and could not figure out what is wrong. My simulation (shear test with periodic boundary conditions) explodes as soon as the flow engine is activated (

Re: [Yade-users] [Question #662105]: simulation explodes as soon as flow engine is activated

2018-01-05 Thread Luc Scholtès
Question #662105 on Yade changed: https://answers.launchpad.net/yade/+question/662105 Luc Scholtès posted a new comment: Hi Robert (and Lingran), Unfortunately, even with a timestep equal to 1e-9, I get the same behavior (explosion)... In addition, I now get this at the first iteration and at

Re: [Yade-users] [Question #662551]: How to show contact force on particles or polyhedre using changing colors

2018-01-05 Thread Luc Scholtès
Question #662551 on Yade changed: https://answers.launchpad.net/yade/+question/662551 Status: Open => Answered Luc Scholtès proposed the following answer: Hi, I am not sure to understand your request ("contact forces changing colors on particles"?) but it is possible to see

Re: [Yade-users] [Question #662105]: simulation explodes as soon as flow engine is activated

2018-01-05 Thread Luc Scholtès
Question #662105 on Yade changed: https://answers.launchpad.net/yade/+question/662105 Status: Answered => Open Luc Scholtès is still having a problem: Yes, I figured it could be a problem with the BC... My model is a cube set up with (xmin, xmax, ymin, ymax) as periodic boundaries and (z

Re: [Yade-users] [Question #662105]: simulation explodes as soon as flow engine is activated

2018-01-09 Thread Luc Scholtès
Question #662105 on Yade changed: https://answers.launchpad.net/yade/+question/662105 Status: Open => Solved Luc Scholtès confirmed that the question is solved: Thank you Jerome. The link you sent me is broken (I get a picture of a squirrel instead...) but I could find the article any

Re: [Yade-users] [Question #662105]: simulation explodes as soon as flow engine is activated

2018-01-10 Thread Luc Scholtès
Question #662105 on Yade changed: https://answers.launchpad.net/yade/+question/662105 Luc Scholtès posted a new comment: Hi Bruno, Thank you for your message. I figured out the pressure gradient thanks to the reference given byJerome. Also, I made a mistake in my previous message regarding the

Re: [Yade-users] [Question #662763]: How to save Data in a txt or Gnuplot file

2018-01-10 Thread Luc Scholtès
Question #662763 on Yade changed: https://answers.launchpad.net/yade/+question/662763 Status: Needs information => Answered Luc Scholtès proposed the following answer: Hello Sophie, I think that something is missing somewhere in your script. You need to call for the data to be saved w

Re: [Yade-users] [Question #662105]: simulation explodes as soon as flow engine is activated

2018-01-10 Thread Luc Scholtès
Question #662105 on Yade changed: https://answers.launchpad.net/yade/+question/662105 Luc Scholtès posted a new comment: Based on my latest searches and testing, here are some conclusions (please correct me if I am wrong): 1) Due to the periodic boundaries in x and z, assigning bndCondIsPressure

[Yade-users] [Question #663459]: Periodic flow: impose gradP such that Paverage!=0

2018-01-23 Thread Luc Scholtès
New question #663459 on Yade: https://answers.launchpad.net/yade/+question/663459 Hi all, I am still a bit confused with the periodic boundaries and I am wondering if there is a way to impose a pressure gradient with gradP such that the average pressure in the cell is not equal to 0? The idea

Re: [Yade-users] [Question #663459]: Periodic flow: impose gradP such that Paverage!=0

2018-01-24 Thread Luc Scholtès
Question #663459 on Yade changed: https://answers.launchpad.net/yade/+question/663459 Status: Answered => Open Luc Scholtès is still having a problem: Thank you Jerome for your input. As I said, I struggle a little bit with the periodic boundaries concept. Still, why would the curr

Re: [Yade-users] [Question #663459]: Periodic flow: impose gradP such that Paverage!=0

2018-01-24 Thread Luc Scholtès
Question #663459 on Yade changed: https://answers.launchpad.net/yade/+question/663459 Luc Scholtès gave more information on the question: Sorry, I meant: -P -- 0 -- +P / -P -- 0 -- +P / -P -- 0 -- +P and 0 -- P -- 2P / 0 -- P -- 2P / 0 -- P -- 2P for gradP=P -- You received this question

Re: [Yade-users] [Question #661250]: I am trying to simulate uniaxial compression with DEM on yade. I would like to know how to introduce the hertz mindlin contact model to my model. Also, I need the

2018-01-24 Thread Luc Scholtès
Question #661250 on Yade changed: https://answers.launchpad.net/yade/+question/661250 Status: Open => Answered Luc Scholtès proposed the following answer: Wow... so many lines. I would suggest that you use the following first batch of lines to get used to yade first. If you copy paste th

Re: [Yade-users] [Question #663459]: Periodic flow: impose gradP such that Paverage!=0

2018-01-25 Thread Luc Scholtès
Question #663459 on Yade changed: https://answers.launchpad.net/yade/+question/663459 Status: Answered => Solved Luc Scholtès confirmed that the question is solved: Thank you guys. I guess I need some time to process this with respect to what I want to achieve. Just a final comment: I

Re: [Yade-users] [Question #664499]: Not able to understand the error

2018-02-18 Thread Luc Scholtès
Question #664499 on Yade changed: https://answers.launchpad.net/yade/+question/664499 Luc Scholtès proposed the following answer: Hello Anay, I don't remember saying that the jcfpm is "better" than the bonded particle model of Potyondy and Cundall for modelling concrete... The th

Re: [Yade-users] [Question #659557]: Flow engine working randomly with CHOLMOD

2018-02-21 Thread Luc Scholtès
Question #659557 on Yade changed: https://answers.launchpad.net/yade/+question/659557 Status: Answered => Solved Luc Scholtès confirmed that the question is solved: No worries. I cannot really blame you for trying to improve the code. That's part of the game I would say. Rega

Re: [Yade-users] [Question #664499]: Not able to understand the error

2018-02-21 Thread Luc Scholtès
Question #664499 on Yade changed: https://answers.launchpad.net/yade/+question/664499 Luc Scholtès posted a new comment: Hi Anay, Did you actually try to run the script that I gave you in #12 of the following thread: https://answers.launchpad.net/yade/+question/661250 ? If not, I strongly

Re: [Yade-users] [Question #664499]: Not able to understand the error

2018-02-22 Thread Luc Scholtès
Question #664499 on Yade changed: https://answers.launchpad.net/yade/+question/664499 Luc Scholtès posted a new comment: Hi Anay, I am sorry but I am not able to reproduce the error on my side. I verified it once again: I copied the lines contained between --- BEGINNING OF SCRIPT --- and

Re: [Yade-users] [Question #665246]: elastic-perfectly plastic material

2018-03-07 Thread Luc Scholtès
Question #665246 on Yade changed: https://answers.launchpad.net/yade/+question/665246 Luc Scholtès proposed the following answer: Hi, My guess: You want to know how to relate the yielding stress of your material (e.g. deviation from linearity of the stress strain curve for a uniaxial

Re: [Yade-users] [Question #668378]: Histogram of crack orientation

2018-04-30 Thread Luc Scholtès
Question #668378 on Yade changed: https://answers.launchpad.net/yade/+question/668378 Status: Open => Answered Luc Scholtès proposed the following answer: Hi Luis, The 3 coordinates of the contact normal is what you are looking for. They give the coordinates of the unit vector normal to

Re: [Yade-users] [Question #668286]: save in txt.file a packing of spheres

2018-04-30 Thread Luc Scholtès
Question #668286 on Yade changed: https://answers.launchpad.net/yade/+question/668286 Status: Open => Answered Luc Scholtès proposed the following answer: Hi Jacopo, Changing the "young" and "poisson" in the material functor will change the stiffness of the newly cr

Re: [Yade-users] [Question #668957]: can we distinguish cracks of joints in jcfpmmat?

2018-05-13 Thread Luc Scholtès
Question #668957 on Yade changed: https://answers.launchpad.net/yade/+question/668957 Status: Open => Answered Luc Scholtès proposed the following answer: Hi, Currently, no distinction is made between cracks produced from "joint" or "matrix" interactions. Wha

Re: [Yade-users] [Question #665130]: Calculating mass or valume of every single fragments after crushing

2018-05-16 Thread Luc Scholtès
Question #665130 on Yade changed: https://answers.launchpad.net/yade/+question/665130 Luc Scholtès posted a new comment: Hi Huihuang, Did you manage to solve your problem? If not, please provide a minimal working script so that we can help. If yes, please tell us what was your solution

Re: [Yade-users] [Question #668957]: can we distinguish cracks of joints in jcfpmmat?

2018-05-16 Thread Luc Scholtès
Question #668957 on Yade changed: https://answers.launchpad.net/yade/+question/668957 Status: Open => Answered Luc Scholtès proposed the following answer: Hi Jipeiqi, I am not sure this is what you wanted but the option for distinguishing matrix and joint cracks when using Paraview

Re: [Yade-users] [Question #668957]: can we distinguish cracks of joints in jcfpmmat?

2018-05-17 Thread Luc Scholtès
Question #668957 on Yade changed: https://answers.launchpad.net/yade/+question/668957 Status: Open => Answered Luc Scholtès proposed the following answer: To see cracks in Paraview, you just have to open the crack.vtu files created during your simulation (to get these, you need to add

Re: [Yade-users] [Question #665314]: save/load precedure

2018-05-31 Thread Luc Scholtès
Question #665314 on Yade changed: https://answers.launchpad.net/yade/+question/665314 Luc Scholtès posted a new comment: Try to redefine the functions and global variables (copy/paste from initial script) into your new simulation before calling O.run(). I usually create a new python script when

Re: [Yade-users] [Question #665314]: save/load precedure

2018-06-01 Thread Luc Scholtès
Question #665314 on Yade changed: https://answers.launchpad.net/yade/+question/665314 Luc Scholtès posted a new comment: I just gave a solution to solve De Zhang's problem which was, basically: How to reload a simulation without suffering from the undefined functions and variables? B

Re: [Yade-users] [Question #670255]: Modelling a Homogenous slope with properties of rock

2018-06-19 Thread Luc Scholtès
Question #670255 on Yade changed: https://answers.launchpad.net/yade/+question/670255 Status: Open => Answered Luc Scholtès proposed the following answer: Hi there, The main difficulty here is to generate an assembly with the shape of a slope. There is actually no "ready to use&quo

Re: [Yade-users] [Question #670255]: Modelling a Homogenous slope with properties of rock

2018-06-20 Thread Luc Scholtès
Question #670255 on Yade changed: https://answers.launchpad.net/yade/+question/670255 Luc Scholtès posted a new comment: Right, it is actually a cubic sample and not a cylindrical one that is used in the examples. Thanks Jerome for the precision. -- You received this question notification

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