Re: [Yade-users] [Question #708388]: Axis rotation
Question #708388 on Yade changed: https://answers.launchpad.net/yade/+question/708388 Przemek posted a new comment: Ok :) -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
[Yade-users] [Question #708388]: Axis rotation
New question #708388 on Yade: https://answers.launchpad.net/yade/+question/708388 Hi, I want use in my code angles which describes rotation of axis to create new constitutive law. Could anybody provide me information how I can do it in simplest way? Regards, Przemek -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #707869]: Problem with Cohesive Frictional Contact law
Question #707869 on Yade changed: https://answers.launchpad.net/yade/+question/707869 Przemek posted a new comment: I wondered if I can use this model to simulate fracture... Maybe you can suggest a beter model? -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #707869]: Problem with Cohesive Frictional Contact law
Question #707869 on Yade changed: https://answers.launchpad.net/yade/+question/707869 Przemek posted a new comment: So, I can't use this model here, yes? I don't see appropriate law in the CFC code... -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
[Yade-users] [Question #707869]: Problem with Cohesive Frictional Contact law
New question #707869 on Yade:
https://answers.launchpad.net/yade/+question/707869
Hi,
I've problem with Cohesive Frictional Contact law. I'm trying to run a
simulation but I receive:
InteractionLoop:178 virtual void yade::InteractionLoop::action():
None of given Law2 functors can handle interaction #23+24, types geom:ScGeom=1
and phys:CohFrictPhys=6 (LawDispatcher::getFunctor2D returned empty functor)
Does the problem with my script or with something else?
#!/usr/bin/python
# -*- coding: utf-8 -*-
from __future__ import division
from __future__ import print_function
import math
from future import standard_library
standard_library.install_aliases()
from yade import plot, pack, timing, qt, export
import time, sys, os, copy
import numpy as np
import gts
# default parameters or from table
readParamsFromTable(
noTableOk=True, # unknownOk=True,
young=70e9,
poisson=0.3,
density=2700,
frictionAngle=radians(30),
normalCohesion=300e6,
shearCohesion=300e6/sqrt(3),
intRadius=1.5,
damping=.4,
sphereRadius=1e-3,
length=100e-3,
width=50e-3,
thickness=4e-3
)
from yade.params.table import *
if 'description' in list(O.tags.keys()): O.tags['id'] = O.tags['id'] +
O.tags['description']
aluminiumId = O.materials.append(
CohFrictMat(
young=young,
poisson=poisson,
density=density,
frictionAngle=frictionAngle,
normalCohesion=normalCohesion,
shearCohesion=shearCohesion,
momentRotationLaw=True
)
)
r = sphereRadius
partI=pack.inAlignedBox((0, 0, -thickness/2-r/2), (width+r, length,
thickness/2+r/2))
partII=pack.inAlignedBox((width, 0, -thickness/2-r/2), (length+r, width,
thickness/2+r/2))
sample = partI|partII
O.bodies.append(pack.regularHexa(sample,radius=r,gap=0.))
load = []
for b in O.bodies:
for b in O.bodies:
if b.state.pos[1] > (length-3*r): # support
b.state.blockedDOFs = 'xyzXYZ'
b.shape.color = (0, 1, 1)
elif b.state.pos[0] > (length-2*r): # load
load.append(b.id)
b.state.blockedDOFs = 'z'
b.shape.color = (0, 1, 1)
else:
b.shape.color = (0, 0, 1)
b.state.blockedDOFs = 'z'
O.dt = PWaveTimeStep()*1e-1
O.engines = [
ForceResetter(),
InsertionSortCollider([Bo1_Sphere_Aabb(aabbEnlargeFactor=intRadius)]),
InteractionLoop(
[Ig2_Sphere_Sphere_ScGeom(interactionDetectionFactor=intRadius)],
[Ip2_CohFrictMat_CohFrictMat_CohFrictPhys(setCohesionNow=True,
setCohesionOnNewContacts=True)],
[Law2_ScGeom6D_CohFrictPhys_CohesionMoment()],
),
NewtonIntegrator(damping=damping),
PyRunner(iterPeriod=1, command='updateParameters()'),
PyRunner(command='addPlotData()', iterPeriod=1),
#PyRunner(iterPeriod=100, command='recordVTK()')
]
O.step()
print(len(O.interactions))
def updateParameters():
for i in range(len(load)):
O.bodies[load[i]].state.vel = Vector3(-100e0, 0, 0)
def addPlotData():
for b in O.bodies:
b.shape.color = scalarOnColorScale(b.state.stress[0, 0], -300e6, 300e6)
def recordVTK():
txtfilename = 'L_shape/L_test' + str(O.iter) + '.txt'
vtkfilename = 'L_shape/L_test' + str(O.iter) + '.vtk'
export.textExt(txtfilename, format='x_y_z_r_attrs',
attrs=['b.state.oldTemp',
'b.state.stress[0,0]','b.state.stress[0,1]','b.state.stress[0,2]',
'b.state.stress[1,1]','b.state.stress[1,2]','b.state.stress[2,2]','O.time'],
comment='temperature, S_11, S_12, S_13, S_22, S_23, S_33,
Time')
export.text2vtk(txtfilename, vtkfilename)
qt.View()
#plot.plots={'eps':('sigma')}
#plot.plot()
#O.run()
Kind regards,
Przemek
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Re: [Yade-users] [Question #706106]: Load the data to plot
Question #706106 on Yade changed: https://answers.launchpad.net/yade/+question/706106 Przemek posted a new comment: Hi, Thank you both. Now I get how to do that. BR Przemek -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #706106]: Load the data to plot
Question #706106 on Yade changed:
https://answers.launchpad.net/yade/+question/706106
Przemek posted a new comment:
Hi,
I'm sorry for my incomprehensible question. Let me explain.
I generated data for analytical solution which I want to compare with
DEM result simultaneously to proceeded simulation, e.g.
i1 - data from txt file
t1 - data from txt file
t2 - data from simulation
plot.plots={'i1':('t1, t2')}
BR
Przemek
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[Yade-users] [Question #706106]: Load the data to plot
New question #706106 on Yade: https://answers.launchpad.net/yade/+question/706106 Hi, I have a question about plotting the results from file. I generated some data and now I want to load them to compare with DEM simulation in real time. How I can do that? BR Przemek -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #700192]: Autosave
Question #700192 on Yade changed: https://answers.launchpad.net/yade/+question/700192 Przemek posted a new comment: Hi, I checked the data right after loading it. Right, the position of all the bodies is correct. But it is a problem because after the first iteration, bodies that has been in contact with the plane, probably loses this information about interactions and passes through it. I will check it for the case with smaller number of particles. BR Przemek -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #700192]: Autosave
Question #700192 on Yade changed: https://answers.launchpad.net/yade/+question/700192 Przemek posted a new comment: Hello, thanks for the hint. I checked it and it works to some extent for me. In the plane compression simulation, after loading the simulation, a number of spheres are above the plane. What was not in the simulation before shutdown and save. I wonder if this is a c ++ or python writing problem. BR Przemek -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
[Yade-users] [Question #700192]: Autosave
New question #700192 on Yade: https://answers.launchpad.net/yade/+question/700192 Hi, I have a question. Is there a way to add autosave functionality to the simulation? It will be helpful in the event, eg. a power failure. And how to load this simulations later? There is an example [1] but it relates to a slightly different situation. Where the entry is at the end of the section calculation. Any ideas? :) Thanks! Przemek [1] https://gitlab.com/yade-dev/trunk/blob/master/examples/simple-scene/save-then-reload.py -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #699796]: Delete interaction
Question #699796 on Yade changed: https://answers.launchpad.net/yade/+question/699796 Status: Answered => Solved Przemek confirmed that the question is solved: It is solved! :) -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #699796]: Delete interaction
Question #699796 on Yade changed: https://answers.launchpad.net/yade/+question/699796 Przemek posted a new comment: Hi there, I added this section which returns "false" and now it works. Thanks for your help! BR Przemek -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #699796]: Delete interaction
Question #699796 on Yade changed: https://answers.launchpad.net/yade/+question/699796 Przemek posted a new comment: Hi Jan, thanks for the hint. Already found the mistake I made when modifying the Cpm model. Karol, thank you for your help, too. BR Przemek -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #699796]: Delete interaction
Question #699796 on Yade changed: https://answers.launchpad.net/yade/+question/699796 Przemek posted a new comment: Hi Karol, Yes, but that is in Python. I need it in C++, because I want to implement it in my Law code :) BR Przemek -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
[Yade-users] [Question #699796]: Delete interaction
New question #699796 on Yade: https://answers.launchpad.net/yade/+question/699796 Hi there, I have a question about deleting the interaction. Maybe it is a trivial question but I can't find the answer to it. I want to implement it in my constitutive law. Simple example. A surface (box or facet) contacts with the sphere and compress it. After that surface moves back, so the normal stress equals zero at a crucial point. But I still have an interaction between these bodies. How to delete it? My code is based on CpmPhys. BR Przemek -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #699075]: Error after launching the program
Question #699075 on Yade changed: https://answers.launchpad.net/yade/+question/699075 Status: Needs information => Solved Przemek confirmed that the question is solved: It works. -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #699075]: Error after launching the program
Question #699075 on Yade changed: https://answers.launchpad.net/yade/+question/699075 Przemek posted a new comment: Hi Karol, I don't load saved simulation. I started new one. But like Jan suggested, I make fresh cmake and now it works. Thanks! Przemek -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #699075]: Error after launching the program
Question #699075 on Yade changed: https://answers.launchpad.net/yade/+question/699075 Przemek posted a new comment: Ok, I will do it. > Could you share them? Ofcourse, but currently I'm working on them. So maybe it will be better to share them after validation and verification :) -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #699075]: Error after launching the program
Question #699075 on Yade changed: https://answers.launchpad.net/yade/+question/699075 Przemek posted a new comment: Hi, it is compiled Yade (if you remember I'm trying to use DEM in my thesis :) ) Right now I can't start yade alone. It's wierd... I'm working only on my files with new laws. But earlier it worked correctly, and now... error. > These errors comes from wrongly linked executable after compilation, meaning that the program requires Gl1_CpmPhys, but it does not know what it is (it was compiled, but not linked correctly). But where I should change the path. I don't change any headers before the last compiling. BR Przemek -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
[Yade-users] [Question #699075]: Error after launching the program
New question #699075 on Yade: https://answers.launchpad.net/yade/+question/699075 Hi, I have a problem with some kind of error after launching the simulation. Welcome to Yade 2021-04-06.git-54b855f Using python version: 3.8.10 (default, Sep 28 2021, 16:10:42) [GCC 9.3.0] Traceback (most recent call last): File "/home/przemek/DEMlab/install/bin/yade", line 151, in import yade File "/home/przemek/DEMlab/install/lib/x86_64-linux-gnu/yade-2021-04-06.git-54b855f/py/yade/__init__.py", line 75, in from yade import boot ImportError: /home/przemek/DEMlab/install/lib/x86_64-linux-gnu/yade-2021-04-06.git-54b855f/libdem.so: undefined symbol: _ZTVN4yade11Gl1_CpmPhysE I don't know why it appear, because earlier it worked. Do you have any suggestions? BR Przemek -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #698253]: Access to body material properties
Question #698253 on Yade changed: https://answers.launchpad.net/yade/+question/698253 Przemek posted a new comment: Hi, sorry for my late reply but I was on holiday :) Ye, you have absolutely right. I will make this separate engine but maybe after the defense of my thesis :) Thanks for your help and explanations! BR Przemek -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #698253]: Access to body material properties
Question #698253 on Yade changed: https://answers.launchpad.net/yade/+question/698253 Przemek posted a new comment: -> Does your new computation directly influences the integration - position and velocity update? If no, then (in the case of "clean" code) NewtonIntegrator is a bad place for such code. It is a good question because it doesn't affect those values yet. But in the future, I want to add the thermal expansion effect, so it could change the particle position due to the change of radius. Thanks for help :) BR Przemek -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #698253]: Access to body material properties
Question #698253 on Yade changed: https://answers.launchpad.net/yade/+question/698253 Przemek posted a new comment: Yes, I'm developing a thermal model in Yade. Regarding the integration, I want to sum all of the temperature increments which are derived from the interactions between spheres. Because I began my journey with Yade I used NewtonIntegrator to do this. I want to write my thesis as soon as possible, so maybe I do "the cleaning" after that :) Thank you for your comments. Can we stay in touch? BR Przemek -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #698253]: Access to body material properties
Question #698253 on Yade changed: https://answers.launchpad.net/yade/+question/698253 Przemek posted a new comment: Hi, yes, I included it. What do you mean by "more natural" refactoring? Recently I'll use this code in my thesis, but I also want to share it with others. BR Przemek -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #698253]: Access to body material properties
Question #698253 on Yade changed: https://answers.launchpad.net/yade/+question/698253 Przemek posted a new comment: Hi, I solved the problem. Thanks! BR Przemek -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #698253]: Access to body material properties
Question #698253 on Yade changed: https://answers.launchpad.net/yade/+question/698253 Przemek posted a new comment: Hi Jan, thank you for reply. I modified code: State*state = b->state.get(); CpmMat* mat = dynamic_cast(b->material.get()); const Body::id_t& id= b->getId(); Vector3r f = Vector3r::Zero(); Vector3r m = Vector3r::Zero(); state->oldTemp = state->temp; state->Cp = mat->CP1 + mat->CP2 * state->oldTemp + mat->CP3 * pow(state->oldTemp,2); state->k = mat->K1 + mat->K2 * state->oldTemp + mat->K3 * pow(state->oldTemp, 2) + mat->K4 * pow(state->oldTemp, 3); But now I get those messages: /home/przemek/DEMlab/trunk/pkg/dem/NewtonIntegrator.cpp: In member function ‘virtual void yade::NewtonIntegrator::action()’: /home/przemek/DEMlab/trunk/pkg/dem/NewtonIntegrator.cpp:181:3: error: ‘CpmPhys’ was not declared in this scope; did you mean ‘IPhys’? 181 | CpmPhys* mat = dynamic_cast(b->material.get()); | ^~~ | IPhys /home/przemek/DEMlab/trunk/pkg/dem/NewtonIntegrator.cpp:181:12: error: ‘mat’ was not declared in this scope; did you mean ‘math’? 181 | CpmPhys* mat = dynamic_cast(b->material.get()); |^~~ |math /home/przemek/DEMlab/trunk/pkg/dem/NewtonIntegrator.cpp:181:31: error: ‘CpmPhys’ does not name a type; did you mean ‘IPhys’? 181 | CpmPhys* mat = dynamic_cast(b->material.get()); | ^~~ | IPhys /home/przemek/DEMlab/trunk/pkg/dem/NewtonIntegrator.cpp:181:38: error: expected ‘>’ before ‘*’ token 181 | CpmPhys* mat = dynamic_cast(b->material.get()); | ^ /home/przemek/DEMlab/trunk/pkg/dem/NewtonIntegrator.cpp:181:38: error: expected ‘(’ before ‘*’ token 181 | CpmPhys* mat = dynamic_cast(b->material.get()); | ^ | ( /home/przemek/DEMlab/trunk/pkg/dem/NewtonIntegrator.cpp:181:39: error: expected primary-expression before ‘>’ token 181 | CpmPhys* mat = dynamic_cast(b->material.get()); | ^ /home/przemek/DEMlab/trunk/pkg/dem/NewtonIntegrator.cpp:181:59: error: expected ‘)’ before ‘;’ token 181 | CpmPhys* mat = dynamic_cast(b->material.get()); | ^ | ) make[2]: *** [CMakeFiles/dem.dir/build.make:583: CMakeFiles/dem.dir/pkg/dem/NewtonIntegrator.cpp.o] Error 1 make[1]: *** [CMakeFiles/Makefile2:247: CMakeFiles/dem.dir/all] Error 2 make: *** [Makefile:130: all] Error 2 How to declare the CpmMat in NewtonIntegrator? BR Przemek -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #698253]: Access to body material properties
Question #698253 on Yade changed: https://answers.launchpad.net/yade/+question/698253 Przemek posted a new comment: I modified my code and I removed showed lines from .cpp file. I add them to a NewtonIntegrator.cpp file State*state = b->state.get(); //Material* mat = b->material.get(); const Body::id_t& id= b->getId(); Vector3r f = Vector3r::Zero(); Vector3r m = Vector3r::Zero(); state->oldTemp = state->temp; b->material->CP1 state->Cp = CP1 + scene->CP2 * state->oldTemp + scene->CP3 * pow(state->oldTemp,2); state->k = K1 + K2 * state->oldTemp + K3 * pow(state->oldTemp, 2) + K4 * pow(state->oldTemp, 3); But I still have a problem how to get the constants CP1, CP2, etc. to compute the heat capacity... BR Przemek -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
[Yade-users] [Question #698253]: Access to body material properties
New question #698253 on Yade:
https://answers.launchpad.net/yade/+question/698253
Hi,
I have a problem with the access to some properties which are assigned to a
particle (sphere). Could you help me to solve the problem? Here are segments of
code.
From .hpp file:
class CpmMat : public FrictMat {
public:
shared_ptr newAssocState() const override { return
shared_ptr(new CpmState); }
bool stateTypeOk(State* s) const override { return
(bool)dynamic_cast(s); }
// clang-format off
YADE_CLASS_BASE_DOC_ATTRS_CTOR(CpmMat,FrictMat,"Concrete material, for
use with other Cpm classes. \n\n..
note::\n\n\t:yref:`Density` is initialized to 4800
kgm⁻³automatically, which gives approximate 2800 kgm⁻³ on 0.5 density
packing.\n\nConcrete Particle Model (CPM)\n\n\n:yref:`CpmMat` is particle
material, :yref:`Ip2_CpmMat_CpmMat_CpmPhys` averages two particles' materials,
creating :yref:`CpmPhys`, which is then used in interaction resultion by
:yref:`Law2_ScGeom_CpmPhys_Cpm`. :yref:`CpmState` is associated to
:yref:`CpmMat` and keeps state defined on particles rather than interactions
(such as number of completely damaged interactions).\n\nThe model is contained
in externally defined macro CPM_MATERIAL_MODEL, which features damage in
tension, plasticity in shear and compression and rate-dependence. For
commercial reasons, rate-dependence and compression-plasticity is not present
in reduced version of the model, used when CPM_MATERIAL_MODEL is not defined.
The full model will be described in detail in my (Václav Šmilauer) thesis along
with calibration procedures (rigidity, poisson's ratio, compressive/tensile
strength ratio, fracture energy, behavior under confinement, rate-dependent
behavior).\n\nEven the public model is useful enough to run simulation on
concrete samples, such as :ysrc:`uniaxial tension-compression
test`.",
((Real,sigOld,0.,,"normal stress from previous iteration [Pa]"))
((Real,tauOld,0.,,"shear stress from previous iteration [Pa]"))
((Real,Sy_0,NaN,,"initial yield strength [Pa]"))
((Real,oldSy,0.,,"yield point form previous iteration [Pa]"))
((Real,cumStr,0.,,"cummulative plastic strain [-]"))
((Real,H,0.,,"hardening parameter [Pa]"))
((Real,density,2700.,,"density [kg/m3]"))
((Real,CP1,0.,,"heat capacity constant"))
((Real,CP2,0.,,"heat capacity constant"))
((Real,CP3,0.,,"heat capacity constant"))
((Real,K1,0.,,"thermal conductivity constant"))
((Real,K2,0.,,"thermal conductivity constant"))
((Real,K3,0.,,"thermal conductivity constant"))
((Real,K4,0.,,"thermal conductivity constant")),
createIndex();
And from .cpp file:
FOREACH(shared_ptr B, *scene2->bodies)
{
CpmPhys* mat = dynamic_cast(B->material.get());
const Real& CP1(mat->CP1);
const Real& CP2(B->material.CP2);
const Real& CP3(B->material.CP3);
const Real& K1(B->material.K1);
const Real& K2(B->material.K2);
const Real& K3(B->material.K3);
const Real& K4(B->material.K4);
if (!B) continue;
const Body::id_t& id = B->getId();
// add damaged contacts that have already been deleted
CpmState* state = dynamic_cast(B->state.get());
if (!state) continue;
state->stress= bodyStats[id].stress;
Sphere* sphere = dynamic_cast(B->shape.get()); // from
that ok???
if (!sphere) continue;
Real& r = sphere->radius;
state->stress = bodyStats[id].stress / (4 / 3. * Mathr::PI * r
* r * r / .62) * .5;
//state->oldTemp = state->temp; // przypisanie wartosci
temperatury
state->Cp = CP1 + CP2 * state->temp + CP3 * pow(state->temp,2);
state->k = K1 + K2 * state->temp + K3 * pow(state->temp, 2) +
K4 * pow(state->temp, 3);
}
And here is the example message form terminal:
/home/przemek/DEMlab/trunk/pkg/dem/ConcretePM.cpp:492:33: error: ‘class
boost::shared_ptr’ has no member named ‘K2’
492 | const Real& K2(B->material.K2);
Have you any suggestions?
BR
Przemek
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Re: [Yade-users] [Question #697837]: Problem with CpmStateUpdater
Question #697837 on Yade changed: https://answers.launchpad.net/yade/+question/697837 Przemek posted a new comment: Hi, You have right... I don't lauch this updater in my python code. My fault ;) Thanks a lot! BR Przemek -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
[Yade-users] [Question #697837]: Problem with CpmStateUpdater
New question #697837 on Yade:
https://answers.launchpad.net/yade/+question/697837
Hi everyone,
I have a problem with CpmStateUpdater. I don't know why, but if I want to get
the stress tensor (matrix) it is always zero matrix. It looks like, that the
updater doesn't launch. Did you have that problem before?
Here is a code (with some modifications)...
CREATE_LOGGER(CpmStateUpdater);
//Real CpmStateUpdater::maxOmega=0.;
//Real CpmStateUpdater::avgRelResidual=0.;
void CpmStateUpdater::update(Scene* _scene)
{
// declaration of ‘scene’ shadows a member of ‘yade::CpmStateUpdater’
[-Werror=shadow]
Scene*scene2 = _scene ? _scene :
Omega::instance().getScene().get();
vector bodyStats;
bodyStats.resize(scene2->bodies->size());
// assert(bodyStats[0].nCohLinks == 0); // should be initialized by dfault
ctor
//Matrix3r identity= Matrix3r::Identity(); // ??
// Matrix3r incr;
FOREACH(const shared_ptr& I, *scene2->interactions)
{
if (!I) continue;
if (!I->isReal()) continue;
shared_ptr phys = YADE_PTR_DYN_CAST(I->phys);
if (!phys) continue;
const Body::id_t id1 = I->getId1(), id2 = I->getId2();
GenericSpheresContact* geom =
YADE_CAST(I->geom.get());
const Vector3r& n = geom->normal;
const Real& Fn = phys->Fn;
const Vector3r& Fs = phys->Fs;
LOG_FATAL("Fn: "<refLength<<" ");
//stress[i,j] +=
geom->refLength*(Fn*n[i]*n[j]+0.5*(Fs[i]*n[j]+Fs[j]*n[i]));
//stress +=
geom->refLength*(Fn*outer(n,n)+.5*(outer(Fs,n)+outer(n,Fs)));
Matrix3r stress = phys->refLength * (Fn * n * n.transpose() +
.5 * (Fs * n.transpose() + n * Fs.transpose()));
// LOG_FATAL("Stress: "< B, *scene2->bodies)
{
if (!B) continue;
const Body::id_t& id = B->getId();
// add damaged contacts that have already been deleted
CpmState* state = dynamic_cast(B->state.get());
if (!state) continue;
state->stress= bodyStats[id].stress;
Sphere* sphere = dynamic_cast(B->shape.get()); // from
that ok???
if (!sphere) continue;
Real& r = sphere->radius;
state->stress = bodyStats[id].stress / (4 / 3. * Mathr::PI * r
* r * r / .62) * .5;
}
}
#undef YADE_VERIFY
#undef NNAN
#undef NNANV
And from .hpp file:
class CpmStateUpdater : public PeriodicEngine {
struct BodyStats {
Matrix3r stress;
BodyStats()
: stress(Matrix3r::Zero())
{
}
};
public:
virtual void action() override { update(scene); }
void update(Scene* rb = NULL);
// clang-format off
YADE_CLASS_BASE_DOC_ATTRS_CTOR(CpmStateUpdater,PeriodicEngine,"Update
:yref:`CpmState` of bodies based on state variables in :yref:`CpmPhys` of
interactions with this bod. In particular, bodies' colors and
:yref:`CpmState::normDmg` depending on average :yref:`damage`
of their interactions and number of interactions that were already fully broken
and have disappeared is updated. This engine contains its own loop (2 loops,
more precisely) over all bodies and should be run periodically to update colors
during the simulation, if desired.",
,
initRun=true;
);
// clang-format on
DECLARE_LOGGER;
};
REGISTER_SERIALIZABLE(CpmStateUpdater);
} // namespace yade
BR
Przemek
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Re: [Yade-users] [Question #693691]: Sphere-Facets penetrationDepth
Question #693691 on Yade changed: https://answers.launchpad.net/yade/+question/693691 Status: Answered => Solved Przemek confirmed that the question is solved: Thanks Jan Stránský, that solved my question. -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
[Yade-users] [Question #693691]: Sphere-Facets penetrationDepth
New question #693691 on Yade: https://answers.launchpad.net/yade/+question/693691 Hello, Can I have a question about the calculation of penetration depth in the case of an interaction sphere with two facets? How it works? Code below: import math # Spheres color = [0.21, 0.22, 0.1] r = 1. sf = 3 # scale factor trans = 0.2 sphere1 = sphere([0.8, 0., 0.], r, color=color, fixed=fixed), sphere2 = sphere([2.6, 0., 0.], r, color=color, fixed=fixed), sphere3 = sphere([0.8, -1.8, 0.], r, color=color, fixed=fixed), sphere4 = sphere([0.8, -3.6, 0.], r, color=color, fixed=fixed), side1 = facet(vertices=[(0.0, -2*r*sf, 0.), (0.0, trans, 2*r*sf), (0.0, trans, -2*r*sf)], fixed=True, wire=True), side2 = facet(vertices=[(0.0, 2*r*sf, 0.), (0.0, trans, 2*r*sf), (0.0, trans, -2*r*sf)], fixed=True, wire=True) O.bodies.append(sphere3) O.bodies.append(side1) O.bodies.append(side2) O.bodies.append(sphere2) O.bodies.append(sphere1) O.bodies.append(sphere4) # Solver O.engines = [ ForceResetter(), InsertionSortCollider([Bo1_Sphere_Aabb(), Bo1_Box_Aabb(), Bo1_Facet_Aabb()]), InteractionLoop( [Ig2_Sphere_Sphere_ScGeom(), Ig2_Box_Sphere_ScGeom(), Ig2_Facet_Sphere_ScGeom()], [Ip2_FrictMat_FrictMat_FrictPhys()], [Law2_ScGeom_FrictPhys_CundallStrack()] ), NewtonIntegrator(gravity=(0, 0, -9.81), damping=0.1), PyRunner(command='intCounter()', realPeriod=1), PyRunner(command='testVF()', realPeriod=1) ] # Make a step O.step() #for i in O.interactions: #print(i.geom.penetrationDepth) #print(i.geom.contactPoint) from yade import pack, qt v = qt.View() v.axes = True Sphere1 has interaction with Side1 and Side2. BR Przemek -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #690433]: UNV Reader
Question #690433 on Yade changed: https://answers.launchpad.net/yade/+question/690433 Status: Answered => Solved Przemek confirmed that the question is solved: No it works. Thanks! :) -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #690433]: UNV Reader
Question #690433 on Yade changed: https://answers.launchpad.net/yade/+question/690433 Przemek posted a new comment: *Now -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
[Yade-users] [Question #690433]: UNV Reader
New question #690433 on Yade: https://answers.launchpad.net/yade/+question/690433 Hi, I have a problm with UNV reader. When I want to import a geometry an error occurs: 363 if returnConnectivityTable: 364 return unvReader.facets, unvReader.nodes, unvReader.elements --> 365 return facets 366 367 NameError: global name 'facets' is not defined I have Yade 1.20.0 version. What could be the reason of this problem? BR Przemek -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #690127]: Missing particles in VTK
Question #690127 on Yade changed: https://answers.launchpad.net/yade/+question/690127 Przemek posted a new comment: Hi, now it works! Thanks a lot! :) BR Przemek -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #690127]: Missing particles in VTK
Question #690127 on Yade changed: https://answers.launchpad.net/yade/+question/690127 Przemek posted a new comment: Yes, you have right. But why in paraview more than one parcicle are missed? And this issue is also in case with less particles, e.g. when the vtk file contain 675 particles three of them are not visible... -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #690127]: Missing particles in VTK
Question #690127 on Yade changed: https://answers.launchpad.net/yade/+question/690127 Przemek posted a new comment: Hi Jan, here is a txt file: #format x_y_z_r_attrs # x y z r temp 0 0 0 0.1121.0635 0 0 0.2 0.1121.0627 0 0 0.4 0.1121.0635 0 0.2 0 0.1121.0687 0 0.2 0.2 0.1121.0682 0 0.2 0.4 0.1121.0687 0 0.4 0 0.1121.0743 0 0.4 0.2 0.1121.0739 0 0.4 0.4 0.1121.0743 0 0.6 0 0.1121.0799 0 0.6 0.2 0.1121.0795 0 0.6 0.4 0.1121.0799 0 0.8 0 0.1121.0854 0 0.8 0.2 0.1121.085 0 0.8 0.4 0.1121.0854 0 1 0 0.1121.0907 0 1 0.2 0.1121.0902 0 1 0.4 0.1121.0907 0 1.2 0 0.1121.0957 0 1.2 0.2 0.1121.0953 0 1.2 0.4 0.1121.0957 0 1.4 0 0.1121.1005 0 1.4 0.2 0.1121.1 0 1.4 0.4 0.1121.1005 0 1.6 0 0.1121.105 0 1.6 0.2 0.1121.1046 0 1.6 0.4 0.1121.105 0 1.8 0 0.1121.1092 0 1.8 0.2 0.1121.1088 0 1.8 0.4 0.1121.1092 0 2 0 0.1121.1132 0 2 0.2 0.1121.1128 0 2 0.4 0.1121.1132 0 2.2 0 0.1121.1169 0 2.2 0.2 0.1121.1165 0 2.2 0.4 0.1121.1169 0 2.4 0 0.1121.1204 0 2.4 0.2 0.1121.12 0 2.4 0.4 0.1121.1204 0 2.6 0 0.1121.1236 0 2.6 0.2 0.1121.1232 0 2.6 0.4 0.1121.1236 0 2.8 0 0.1121.1266 0 2.8 0.2 0.1121.1261 0 2.8 0.4 0.1121.1266 0 3 0 0.1121.1293 0 3 0.2 0.1121.1288 0 3 0.4 0.1121.1293 0 3.2 0 0.1121.1317 0 3.2 0.2 0.1121.1313 0 3.2 0.4 0.1121.1317 0 3.4 0 0.1121.134 0 3.4 0.2 0.1121.1335 0 3.4 0.4 0.1121.134 0 3.6 0 0.1121.1359 0 3.6 0.2 0.1121.1355 0 3.6 0.4 0.1121.1359 0 3.8 0 0.1121.1377 0 3.8 0.2 0.1121.1373 0 3.8 0.4 0.1121.1377 0 4 0 0.1121.1393 0 4 0.2 0.1121.1388 0 4 0.4 0.1121.1393 0 4.2 0 0.1121.1406 0 4.2 0.2 0.1121.1402 0 4.2 0.4 0.1121.1406 0 4.4 0 0.1121.1418 0 4.4 0.2 0.1121.1414 0 4.4 0.4 0.1121.1418 0 4.6 0 0.1121.1429 0 4.6 0.2 0.1121.1424 0 4.6 0.4 0.1121.1429 0 4.8 0 0.1121.1438 0 4.8 0.2 0.1121.1434 0 4.8 0.4 0.1121.1438 0 5 0 0.1121.1449 0 5 0.2 0.1121.1445 0 5 0.4 0.1121.1449 0.2 0 0 0.1121.0691 0.2 0 0.2 0.1121.0685 0.2 0 0.4 0.1121.0691 0.2 0.2 0 0.1121.0753 0.2 0.2 0.2 0.1121.0751 0.2 0.2 0.4 0.1121.0753 0.2 0.4 0 0.1121.0812 0.2 0.4 0.2 0.1121.0811 0.2 0.4 0.4 0.1121.0812 0.2 0.6 0 0.1121.087 0.2 0.6 0.2 0.1121.0869 0.2 0.6 0.4 0.1121.087 0.2 0.8 0 0.1121.0926 0.2 0.8 0.2 0.1121.0925 0.2 0.8 0.4 0.1121.0926 0.2 1 0 0.1121.0979 0.2 1 0.2 0.1121.0978 0.2 1 0.4 0.1121.0979 0.2 1.2 0 0.1121.103 0.2 1.2 0.2 0.1121.1029 0.2 1.2 0.4 0.1121.103 0.2 1.4 0 0.1121.1078 0.2 1.4 0.2 0.1121.1077 0.2 1.4 0.4 0.1121.1078 0.2 1.6 0 0.1121.1124 0.2 1.6 0.2 0.1121.1123 0.2 1.6 0.4 0.1121.1124 0.2 1.8 0 0.1121.1166 0.2 1.8 0.2 0.1121.1166 0.2 1.8 0.4 0.1121.1166 0.2 2 0 0.1121.1207 0.2 2 0.2 0.1121.1206 0.2 2 0.4 0.1121.1207 0.2 2.2 0 0.1121.1244 0.2 2.2 0.2 0.1121.1243 0.2 2.2 0.4 0.1121.1244 0.2 2.4 0 0.1121.1279 0.2 2.4 0.2 0.1121.1278 0.2 2.4 0.4 0.1121.1279 0.2 2.6 0 0.1121.1311 0.2 2.6 0.2 0.1121.131 0.2 2.6 0.4 0.1121.1311 0.2 2.8 0 0.11
Re: [Yade-users] [Question #690127]: Missing particles in VTK
Question #690127 on Yade changed: https://answers.launchpad.net/yade/+question/690127 Przemek posted a new comment: Hi Jan, this is txt file for 36 particles: #format x_y_z_r_attrs # x y z r temp 0 0 0 0.5521.4949 0 1 0 0.5521.551 0 2 0 0.5521.6028 0 3 0 0.5521.6451 0 4 0 0.5521.6783 0 5 0 0.5521.7061 1 0 0 0.5521.5679 1 1 0 0.5521.6467 1 2 0 0.5521.7066 1 3 0 0.5521.7512 1 4 0 0.5521.7824 1 5 0 0.5521.8009 2 0 0 0.5521.6728 2 1 0 0.5521.7612 2 2 0 0.5521.8258 2 3 0 0.5521.8707 2 4 0 0.5521.8994 2 5 0 0.5521.914 3 0 0 0.5521.8076 3 1 0 0.5521.8995 3 2 0 0.5521.9645 3 3 0 0.5522.0063 3 4 0 0.5522.0305 3 5 0 0.5522.0419 4 0 0 0.5521.9781 4 1 0 0.5522.0649 4 2 0 0.5522.1265 4 3 0 0.5522.1597 4 4 0 0.5522.1744 4 5 0 0.5522.181 5 0 0 0.5522.2016 5 1 0 0.5522.2554 5 2 0 0.5522.3168 5 3 0 0.5522.3314 5 4 0 0.5522.3264 5 5 0 0.5522.3268 And generated vtk: # vtk DataFile Version 3.0. comment ASCII DATASET POLYDATA POINTS 35 double 0 1 0 0 2 0 0 3 0 0 4 0 0 5 0 1 0 0 1 1 0 1 2 0 1 3 0 1 4 0 1 5 0 2 0 0 2 1 0 2 2 0 2 3 0 2 4 0 2 5 0 3 0 0 3 1 0 3 2 0 3 3 0 3 4 0 3 5 0 4 0 0 4 1 0 4 2 0 4 3 0 4 4 0 4 5 0 5 0 0 5 1 0 5 2 0 5 3 0 5 4 0 5 5 0 POINT_DATA 35 SCALARS radius double 1 LOOKUP_TABLE default 0.55 0.55 0.55 0.55 0.55 0.55 0.55 0.55 0.55 0.55 0.55 0.55 0.55 0.55 0.55 0.55 0.55 0.55 0.55 0.55 0.55 0.55 0.55 0.55 0.55 0.55 0.55 0.55 0.55 0.55 0.55 0.55 0.55 0.55 0.55 SCALARS temp double 1 LOOKUP_TABLE default 21.551 21.6028 21.6451 21.6783 21.7061 21.5679 21.6467 21.7066 21.7512 21.7824 21.8009 21.6728 21.7612 21.8258 21.8707 21.8994 21.914 21.8076 21.8995 21.9645 22.0063 22.0305 22.0419 21.9781 22.0649 22.1265 22.1597 22.1744 22.181 22.2016 22.2554 22.3168 22.3314 22.3264 22.3268 -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #690127]: Missing particles in VTK
Question #690127 on Yade changed:
https://answers.launchpad.net/yade/+question/690127
Przemek posted a new comment:
I just tried to use this:
vtkExporter = export.VTKExporter('/tmp/vtkExporterTesting')
vtkExporter.exportSpheres(what=dict(dist='b.state.pos.norm()'))
But I had an error:
ValueErrorTraceback (most recent call last)
/usr/bin/yade in ()
/usr/bin/yade in tempCalc()
202
203 vtkExporter = export.VTKExporter('vtkExporterTesting')
--> 204 vtkExporter.exportSpheres(what=dict(dist='b.state.pos.norm()'))
205
206 #export.textExt('test.txt', format='x_y_z_r_attrs',
attrs=['b.getTemp()'], comment='temp')
/usr/lib/x86_64-linux-gnu/yade/py/yade/export.py in exportSpheres(self, ids,
what, comment, numLabel, useRef)
428 outFile.write("%g\n"%(b.shape.radius))
429 # write additional data from 'what' param
--> 430 for name,command in what: # for each name...
431 test = eval(command) # ... eval one example to
see what type (float, Vector3, Matrix3) the result is ...
432 # ... and write appropriate header line and
loop over all bodies and write appropriate vtk line(s)
ValueError: too many values to unpack
Yade [2]:
---
KeyboardInterrupt Traceback (most recent call last)
/usr/lib/x86_64-linux-gnu/yade/py/yade/__init__.py in refreshEvent(self)
198 def yzxSlot(self): self.setViewAxes((-1,0,0),(0,0,1))
199 def zxySlot(self): self.setViewAxes((0,-1,0),(1,0,0))
--> 200 def refreshEvent(self):
201 self.refreshValues()
202 self.activateControls()
KeyboardInterrupt:
In case when I used export to txt file, I get:
#format x_y_z_r_attrs
# x y z r temp
0 0 0 0.5540
1 0 0 0.5542.3553
2 0 0 0.5544.7105
3 0 0 0.5547.0658
4 0 0 0.5549.421
And after text2vtk:
# vtk DataFile Version 3.0.
comment
ASCII
DATASET POLYDATA
POINTS 4 double
1 0 0
2 0 0
3 0 0
4 0 0
POINT_DATA 4
SCALARS radius double 1
LOOKUP_TABLE default
0.55
0.55
0.55
0.55
SCALARS temp double 1
LOOKUP_TABLE default
42.3553
44.7105
47.0658
49.421
So, in txt I have 5 particles and in vtk file 4... wierd...
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Re: [Yade-users] [Question #690127]: Missing particles in VTK
Question #690127 on Yade changed: https://answers.launchpad.net/yade/+question/690127 Przemek posted a new comment: The code works but there is problem only with export data from the text file to vtk. Like i wrote, in txt file I had 36 particles and after convertion one particle was missed. I don't know what is the reason of it. -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #690127]: Missing particles in VTK
Question #690127 on Yade changed: https://answers.launchpad.net/yade/+question/690127 Przemek posted a new comment: It is long :) -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #690127]: Missing particles in VTK
Question #690127 on Yade changed: https://answers.launchpad.net/yade/+question/690127 Przemek posted a new comment: import math import numpy as np from scipy.sparse.linalg import spsolve from numpy.linalg import norm from numpy.linalg import inv from yade import pack, export # Properties and parameters kappa = 10. # heat conductivity beta = 1. T_inf = 20. # ambient temperature q_v = 0.5e1 # heat flux convection1 = 0. # x-position of convection convection2 = 0. # y-position of convection tPoint = [2, 2, 0] avTemp = 0 # Plate dimension boxMax = (5.0, 5.0, 0.5) # Spheres color = [0.21, 0.22, 0.1] sphereRadius = 0.1 # cm r = 0.11 ndiv_x = boxMax[0] / (2 * sphereRadius) + 1 ndiv_y = boxMax[1] / (2 * sphereRadius) + 1 ndiv_z = boxMax[2] / (2 * sphereRadius) + 1 nbSpheres = (int(ndiv_x), int(ndiv_y), int(ndiv_z)) num = 0 for i in range(nbSpheres[0]): for j in range(nbSpheres[1]): for jj in range(nbSpheres[2]): x = (2.0 * sphereRadius * i) y = (2.0 * sphereRadius * j) z = (2.0 * sphereRadius * jj) num += 1 plate = utils.sphere([x, y, z], r, color=color, fixed=fixed) O.bodies.append(plate) conv1 = box(center=(convection1, boxMax[1] / 2, boxMax[2] / 2), extents=(0., boxMax[1] / 2 + sphereRadius, boxMax[2] / 2 + sphereRadius), fixed=True, wire=True, mask=3), conv2 = box(center=(boxMax[0] / 2, convection2, boxMax[2] / 2), extents=(boxMax[0] / 2 + sphereRadius, 0., boxMax[2] / 2 + sphereRadius), fixed=True, wire=True, mask=3), heat1 = facet(vertices=[(boxMax[0] + sphereRadius, -sphereRadius, -sphereRadius), (boxMax[0] + sphereRadius, boxMax[0] + sphereRadius, -sphereRadius), (boxMax[0] + sphereRadius, -sphereRadius, boxMax[2] + sphereRadius)], fixed=True, wire=True, mask=55) heat2 = facet(vertices=[(boxMax[0] + sphereRadius, boxMax[0] + sphereRadius, boxMax[2] + sphereRadius), (boxMax[0] + sphereRadius, boxMax[0] + sphereRadius, -sphereRadius), (boxMax[0] + sphereRadius, -sphereRadius, boxMax[2] + sphereRadius)], fixed=True, wire=True, mask=55) O.bodies.append(heat1) O.bodies.append(heat2) O.bodies.append(conv1) O.bodies.append(conv2) nBox = 2 # number of boxes ### def convComp(): betaDiffx = 0 betaDiffy = 0 for b in O.bodies: if isinstance(b.shape, Sphere): if b.state.pos[0] == convection1: betaDiffx += 1 elif b.state.pos[1] == convection2: betaDiffy += 1 else: pass beta_x = beta / betaDiffx beta_y = beta / betaDiffy return beta_x, beta_y ### beta_x = convComp()[0] beta_y = convComp()[1] # Solver O.engines = [ ForceResetter(), InsertionSortCollider([Bo1_Sphere_Aabb(), Bo1_Box_Aabb(), Bo1_Facet_Aabb()]), InteractionLoop( [Ig2_Sphere_Sphere_ScGeom(), Ig2_Box_Sphere_ScGeom(), Ig2_Facet_Sphere_ScGeom()], [Ip2_FrictMat_FrictMat_FrictPhys()], [Law2_ScGeom_FrictPhys_CundallStrack()] ), NewtonIntegrator(gravity=(0, 0, -9.81), damping=0.1), PyRunner(command='intCounter()', realPeriod=1), PyRunner(command='tempCalc()', realPeriod=1), PyRunner(command='checkTempPoint(tPoint, sphereRadius)', realPeriod=1) ] # Make a step O.step() ### def intCounter(): # counter of body (Sphere and Facet) real interactions for b in O.bodies: if isinstance(b.shape, Sphere) == True: countI = 0 bInCon = [] for i in O.interactions: if i.isReal: if (i.id1 == b.id): if isinstance(O.bodies[i.id2].shape, Facet) == True: countI += 1 bInCon.append(i.id2) else: pass elif (i.id2 == b.id): if isinstance(O.bodies[i.id1].shape, Facet) == True: countI += 1 bInCon.append(i.id1) else: pass else: pass b.realInt(countI) b.bodiesInContact(bInCon) elif isinstance(b.shape, Facet) == True: countI = 0 bInCon = [] for i in O.interactions: if i.isReal: if (i.id1 == b.id): countI += 1 bInCon.append(i.id2) elif (i.id2 == b.id): countI += 1 bInCon.append(i.id1) else: pass b.realInt(countI) b.bodiesInContact(bInCon) else: pass ### ### def volumefraction(fID, sID): ns = O.bodies[fID].countI nsd = 0 # Ai = pi * math.pow(r * math.sin
Re: [Yade-users] [Question #690127]: Missing particles in VTK
Question #690127 on Yade changed: https://answers.launchpad.net/yade/+question/690127 Przemek posted a new comment: Sorry by the indentation. It should looks like: for tp in O.bodies: if isinstance(tp.shape, Box) == True: pass else: tp.setTemp(T[tp.id]) BR Przemek -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #690127]: Missing particles in VTK
Question #690127 on Yade changed: https://answers.launchpad.net/yade/+question/690127 Status: Answered => Solved Przemek confirmed that the question is solved: Hi Jan, check the script below: T = inv(H).dot(F) for tp in O.bodies: if isinstance(tp.shape, Box) == True: pass else: tp.setTemp(T[tp.id]) -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #690127]: Missing particles in VTK
Question #690127 on Yade changed: https://answers.launchpad.net/yade/+question/690127 Przemek posted a new comment: Hi Jan, I checked the text file which contents 36 particles and in vtk file 1 particle was missed. For a higher number of particles more of them were missed. I will send the script tomorrow when I'll be in work ;) BR Przemek -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
[Yade-users] [Question #690127]: Missing particles in VTK
New question #690127 on Yade:
https://answers.launchpad.net/yade/+question/690127
Hi,
I've a problem with exporting to VTK formt. After convertion from text file to
vtk file some particles are missing.
How can I solve this problem?
I used this code:
export.textExt('test.txt', format='x_y_z_r_attrs', attrs=['b.getTemp()'],
comment='temp')
export.text2vtk('test.txt', 'test.vtk')
BR
Przemek
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Re: [Yade-users] [Question #688175]: Contact point coordinates of two bodies
Question #688175 on Yade changed: https://answers.launchpad.net/yade/+question/688175 Status: Answered => Solved Przemek confirmed that the question is solved: Ok, thanks! -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #688174]: Definition of table with zeros arrays
Question #688174 on Yade changed: https://answers.launchpad.net/yade/+question/688174 Status: Answered => Solved Przemek confirmed that the question is solved: Thanks Robert! -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
[Yade-users] [Question #688175]: Contact point coordinates of two bodies
New question #688175 on Yade: https://answers.launchpad.net/yade/+question/688175 Hi, is there a simply way to get the coordinates of contact point of two bodies e.g sphere-sphere or sphere-box? Now I'm using this script: for i in O.interactions: if not i.isReal: continue cp = i.geom.contactPoint I want to made a thermal model, and I need those information to build a thermal resistance matrix. BR Przemek -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
[Yade-users] [Question #688174]: Definition of table with zeros arrays
New question #688174 on Yade: https://answers.launchpad.net/yade/+question/688174 Hello, is a possibility in Yade to define the table or matrix where the rows would be an arrays with zeros values? In Python I'm using numeric library - numpy - and here I don't know how to do it. BR Przemek -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #686571]: Access to UNV facets
Question #686571 on Yade changed: https://answers.launchpad.net/yade/+question/686571 Status: Answered => Solved Przemek confirmed that the question is solved: Thanks Jan Stránský, that solved my question. -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #686571]: Access to UNV facets
Question #686571 on Yade changed: https://answers.launchpad.net/yade/+question/686571 Przemek posted a new comment: Sorry, my last comment was not described precisely. My fault. I'm using this geometry (rod) in O.engines section, that's why I didn't attach it earlier. It rotates and translates. And I want to apply a function which depends on area and position of each facet in current iteration (area is constant, but position changes due to the combined motion). So, I want to have an access to to this data. I hope that this description is more understandable :) Przemek -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #686571]: Access to UNV facets
Question #686571 on Yade changed:
https://answers.launchpad.net/yade/+question/686571
Przemek posted a new comment:
Thanks Jan, and I have one more question to this topic.
In my script, I used command
rod =
O.bodies.append(ymport.unv('Geometry/tool.unv',scale=1e-3,returnConnectivityTable=False,wire=False,color=toolColor))
to move this geometry. So the facets coordinates changes in every
iteration. Can I connect this two imports to read current position of
each facet?
BR
Przemek
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[Yade-users] [Question #686571]: Access to UNV facets
New question #686571 on Yade: https://answers.launchpad.net/yade/+question/686571 Hi, I have a question about the ymport module. I my script I loaded UNV geometry with returnConnectivityTable True value. And now, how I can access to the data of facets? I wish to use some properties of those facets like, area and coordinates of each area center. Is it possible? BR Przemek -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #685885]: Problem with the combined engine
Question #685885 on Yade changed: https://answers.launchpad.net/yade/+question/685885 Przemek posted a new comment: Hi, now it's working :) Thanks a lot! -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #685885]: Problem with the combined engine
Question #685885 on Yade changed: https://answers.launchpad.net/yade/+question/685885 Przemek posted a new comment: Sorry, next time I'll adjust to guidelines. Here is the error: UnboundLocalError Traceback (most recent call last) /usr/bin/yade in () /usr/bin/yade in updateParameters() 52 tranVel = 1.0 53 transEngine = combEngine.comb[0] ---> 54 transEngine.translationAxis = velVec 55 transEngine.velocity = tranVel 56 UnboundLocalError: local variable 'velVec' referenced before assignment I tried to modify the script by yous suggestions but it still doesn't work. STL file: https://www.dropbox.com/s/a7dvy3khefjpl3c/tool.stl?dl=0 -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
[Yade-users] [Question #685885]: Problem with the combined engine
New question #685885 on Yade:
https://answers.launchpad.net/yade/+question/685885
Hi,
I'm new with Yade, and I have problem with combined engine. I want to change
the translationAxis and the velocity after a few iterations but I still have an
issue about the global variables.
Could you help me?
#!/usr/bin/python
# -*- coding: utf-8 -*-
from __future__ import print_function
from builtins import range
import random
from yade import ymport
from yade import pack, qt
## PhysicalParameters
## Import geometry
rod = O.bodies.append(ymport.stl('tool.stl',wire=False,color=[0.31,0.47,0.47]))
# Plate dimension
thickness = 1.0 # cm
width = 5.0 # cm
length = 11.0 # cm
boxMax = (2,2.5,0)
# Spheres
sphereRadius = 0.05 # cm
ndiv_x = length/(2*sphereRadius)
ndiv_y = width/(2*sphereRadius)
ndiv_z = thickness/(2*sphereRadius)
#nbSpheres = (ndiv_x,ndiv_y,ndiv_z)
nbSpheres = (40,40,10)#(110,50,10)
print("Creating %d spheres..."%(nbSpheres[0]*nbSpheres[1]*nbSpheres[2]), end='
')
for i in range(nbSpheres[0]):
for j in range(nbSpheres[1]):
for k in range(nbSpheres[2]):
x = boxMax[0]-2.0*sphereRadius*(i)
y = boxMax[1]-2.0*sphereRadius*(j)
z = boxMax[2]-2.0*sphereRadius*(k)
r = random.uniform(sphereRadius,sphereRadius)
fixed = False
color=[0.21,0.22,0.1]
if (i==0 or i==nbSpheres[0]-1 or k==nbSpheres[2]-1 or
j==0 or j==nbSpheres[1]-1):
fixed = True
color=[0.21,0.22,0.3]
O.bodies.append(sphere([x,y,z],r,color=color,fixed=fixed))
print("done\n")
## Estimate time step
#O.dt=PWaveTimeStep()
O.dt=0.0001
def updateParameters():
aTime = (O.iter*O.dt)
if aTime>0.005: # fist part
velVec = Vector3(-1,0,0)
tranVel = 1.0
transEngine.translationAxis = velVec
transEngine.velocity = tranVel
## Engines
O.engines=[
ForceResetter(), # 0
InsertionSortCollider([ # 1
Bo1_Sphere_Aabb(),
Bo1_Facet_Aabb(),
]),
InteractionLoop( # 2
[Ig2_Sphere_Sphere_ScGeom(),Ig2_Facet_Sphere_ScGeom()],
[Ip2_FrictMat_FrictMat_FrictPhys()],
[Law2_ScGeom_FrictPhys_CundallStrack()]
),
CombinedKinematicEngine(ids=rod,label='combEngine') +
TranslationEngine(translationAxis=(0,0,-1),velocity=0.6) +
RotationEngine(rotationAxis=(0,0,-1), angularVelocity=20,
rotateAroundZero=True, zeroPoint=(0,0,0)),
NewtonIntegrator(damping=2.0,gravity=[0,0,-9.81]), # 3
PyRunner(iterPeriod=1, command='updateParameters()'),
# save data from Yade's own 3d view
#qt.SnapshotEngine(fileBase='3d-',iterPeriod=1,label='snapshot'),
#PyRunner(command='finish()',iterPeriod=10)
]
import sys,time
print("Start simulation: ")
nbIter=60
from yade import qt
v=qt.View()
v.eyePosition=(6,2,2); v.upVector=(-.4,-.4,.8); v.viewDir=(-.9,-.25,-.3);
v.axes=False; v.sceneRadius=20
O.stopAtIter=nbIter
O.run()
# this function is called when the simulation is finished
def finish():
# snapshot is label of qt.SnapshotEngine
# the 'snapshots' attribute contains list of all saved files
makeVideo(snapshot.snapshots,'3d.mpeg',fps=1,bps=10)
O.pause()
#for t in xrange(2):
# start=time.time();O.run(nbIter);O.wait();finish=time.time()
# speed=nbIter/(finish-start); print '%g iter/sec\n'%speed
#print "FINISH"
#quit()
BR
Przemek
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