Re: [Yade-users] [Question #665350]: The parameter (en, es )of the DMT model

2018-03-12 Thread Chiara Modenese
Question #665350 on Yade changed: https://answers.launchpad.net/yade/+question/665350 Status: Open => Answered Chiara Modenese proposed the following answer: Hi, Glad to know the work has been useful. Surface energy (gamma) is a measurable material parameter, and also an input of the

Re: [Yade-users] [Question #665350]: The parameter (en, es )of the DMT model

2018-03-12 Thread Chiara Modenese
Question #665350 on Yade changed: https://answers.launchpad.net/yade/+question/665350 Status: Open => Answered Chiara Modenese proposed the following answer: Hi, If you are looking to use the DMT model for adhesive particles, this is a simple extension of the Hertz Mindlin formulat

Re: [Yade-users] [Question #256283]: Problem with Damping, Facets and Contact Model

2014-10-31 Thread Chiara Modenese
Question #256283 on Yade changed: https://answers.launchpad.net/yade/+question/256283 Chiara Modenese posted a new comment: Great, thanks! Yes, you are right about the computation of the mass, it shows how important it is to read understand the code! It should be a detail written

Re: [Yade-users] [Question #256283]: Problem with Damping, Facets and Contact Model

2014-10-29 Thread Chiara Modenese
Question #256283 on Yade changed: https://answers.launchpad.net/yade/+question/256283 Chiara Modenese proposed the following answer: Just to say that the HM contact model has been widely tested for sphere-sphere contacts but not with other elements. I am not familiar with the formulation

Re: [Yade-users] [Question #250903]: theory of hertz-mindlin

2014-07-09 Thread Chiara Modenese
Question #250903 on Yade changed: https://answers.launchpad.net/yade/+question/250903 Chiara Modenese proposed the following answer: Hi Alexander, I hope you are having fun and please say hello to everyone on my behalf! I do say Yade the italian way and have managed to convince others around

Re: [Yade-users] [Question #250903]: theory of hertz-mindlin

2014-07-09 Thread Chiara Modenese
Question #250903 on Yade changed: https://answers.launchpad.net/yade/+question/250903 Chiara Modenese posted a new comment: Hi, Sure, I am always happy to help. Please post any Yade-related question on launchpad though. Thanks, Chiarra On 9 July 2014 16:26, Luis Barbosa question250

Re: [Yade-users] [Question #241471]: mindlin contact law

2014-01-03 Thread Chiara Modenese
Question #241471 on Yade changed: https://answers.launchpad.net/yade/+question/241471 Chiara Modenese proposed the following answer: Hi Seungcheol, First of all I would post your script and highlight any chances you have done from the version you said was working fine. When I talk about

Re: [Yade-users] [Question #241471]: mindlin contact law

2014-01-01 Thread Chiara Modenese
Question #241471 on Yade changed: https://answers.launchpad.net/yade/+question/241471 Status: Open = Answered Chiara Modenese proposed the following answer: Hi, Please post a script with the parameters you are using in your simulations to reproduce the error. Saying it is not working

Re: [Yade-users] [Question #241108]: mindlin-Deresiewicz contact law

2014-01-01 Thread Chiara Modenese
Question #241108 on Yade changed: https://answers.launchpad.net/yade/+question/241108 Status: Open = Answered Chiara Modenese proposed the following answer: Hi, The contact law you are attempting to use is in fact not available. I started coding it during my PhD but I never completed

Re: [Yade-users] [Question #238696]: Time step

2013-11-06 Thread Chiara Modenese
Question #238696 on Yade changed: https://answers.launchpad.net/yade/+question/238696 Chiara Modenese proposed the following answer: Hi Lingran, I have used contact damping with the HM law. Whether it is approprate in a dynamic case like yours it is up to you to decide as it all depends

Re: [Yade-users] [Question #232351]: Kinds of damping

2013-11-06 Thread Chiara Modenese
Question #232351 on Yade changed: https://answers.launchpad.net/yade/+question/232351 Chiara Modenese posted a new comment: Hi Alexander, Yes, you are right beta_n should be called damping ratio rather than damping coefficient but you get the concept. Feel free to adjust the text if you want

Re: [Yade-users] [Question #232351]: Kinds of damping

2013-11-06 Thread Chiara Modenese
Question #232351 on Yade changed: https://answers.launchpad.net/yade/+question/232351 Chiara Modenese posted a new comment: Hi again, Yes, they are. Linear or non-linear it depends on the definition as in the linear case cn is in linear relationship with betan, for instance. Improvements to Yade

Re: [Yade-users] [Question #237624]: constitutive law for inelastic (elasto-pastic) contacts

2013-10-21 Thread Chiara Modenese
Question #237624 on Yade changed: https://answers.launchpad.net/yade/+question/237624 Status: Open = Answered Chiara Modenese proposed the following answer: Hi Alex, For inelastic collisions based on the Hertz-Mindlin model I suggest you look into this paper: http://www.sciencedirect.com

Re: [Yade-users] [Question #235934]: Reference for coeff of restitution in Hertz-Mindlin with non-linear damping

2013-09-23 Thread Chiara Modenese
Question #235934 on Yade changed: https://answers.launchpad.net/yade/+question/235934 Chiara Modenese posted a new comment: @Klaus Yes, you are absolutely right and you refer to an excellent reference (worth reading it for those interested in conctact models). However, sometimes an analytical

Re: [Yade-users] [Question #235934]: Reference for coeff of restitution in Hertz-Mindlin with non-linear damping

2013-09-22 Thread Chiara Modenese
Question #235934 on Yade changed: https://answers.launchpad.net/yade/+question/235934 Chiara Modenese posted a new comment: Hey Guys, I am still here! Sorry for not replying earlier but I have recently been very busy and the good news is that I have successfully completed my PhD :-) (finally

Re: [Yade-users] [Question #232953]: rolling resistance models in YADE

2013-08-20 Thread Chiara Modenese
Question #232953 on Yade changed: https://answers.launchpad.net/yade/+question/232953 Chiara Modenese proposed the following answer: Yes, I agree that the algorithms are different than what is in Yade at present (thanks for the reference you have given above). Moreover, as you say, equations

Re: [Yade-users] [Question #228886]: [Triaxial test] Kinetic Energy is way too big, how to reduce it?

2013-05-15 Thread Chiara Modenese
Question #228886 on Yade changed: https://answers.launchpad.net/yade/+question/228886 Chiara Modenese proposed the following answer: Hi, Just a small comment on what you want to achieve rather than how. I agree with Bruno saying that kinetic energy alone (however small in absolute value

Re: [Yade-users] [Question #227868]: rolling resistance implementation

2013-04-30 Thread Chiara Modenese
Question #227868 on Yade changed: https://answers.launchpad.net/yade/+question/227868 Chiara Modenese proposed the following answer: Hi Ning I think that you already answered your question. The relative rotation that you are referring to pertains to sliding (which should be dealt

Re: [Yade-users] [Question #224829]: O.save/O.load

2013-03-21 Thread Chiara Modenese
Question #224829 on Yade changed: https://answers.launchpad.net/yade/+question/224829 Chiara Modenese proposed the following answer: Hi Riccardo My suggestion is that if you require to frequently save and load simulations, you should try to use the same version of Yade. Otherwise you are likely

Re: [Yade-users] [Question #219884]: Time computation of biaxial/triaxial test

2013-01-23 Thread Chiara Modenese
Question #219884 on Yade changed: https://answers.launchpad.net/yade/+question/219884 Chiara Modenese proposed the following answer: @Bruno If you increase density and at the same time reduce the strain rate so that the total time is unchanged, then clearly there is no speed-up, as you already

Re: [Yade-users] [Question #219884]: Time computation of biaxial/triaxial test

2013-01-23 Thread Chiara Modenese
Question #219884 on Yade changed: https://answers.launchpad.net/yade/+question/219884 Chiara Modenese proposed the following answer: Yes, of course as it determines the critical time step of the simulation. So you might also think of increasing your particle size but I would suggest to play

Re: [Yade-users] [Question #219884]: Time computation of biaxial/triaxial test

2013-01-22 Thread Chiara Modenese
Question #219884 on Yade changed: https://answers.launchpad.net/yade/+question/219884 Status: Open = Answered Chiara Modenese proposed the following answer: Hi Jessica, I would answer that all depends on your input parameters and what you are interested to study (small or large strains

Re: [Yade-users] [Question #206415]: getStress() applies for clumps?

2012-12-18 Thread Chiara Modenese
Question #206415 on Yade changed: https://answers.launchpad.net/yade/+question/206415 Status: Solved = Open Chiara Modenese changed the question status: Hi, Concerning the computation of stress tensor and the question above I would like to know if the general definition of average stress

Re: [Yade-users] [Question #206415]: getStress() applies for clumps?

2012-12-18 Thread Chiara Modenese
Question #206415 on Yade changed: https://answers.launchpad.net/yade/+question/206415 Chiara Modenese proposed the following answer: Hi Jan, Thanks for reply. The definition of average stress tensor in Bagi's paper, for instance, is equal to the one in Yade [1]. I was not sure about its validity

Re: [Yade-users] [Question #206415]: getStress() applies for clumps?

2012-12-18 Thread Chiara Modenese
Question #206415 on Yade changed: https://answers.launchpad.net/yade/+question/206415 Status: Answered = Solved Chiara Modenese changed the question status: Comments #9 and #12 solve the problem. Chiara -- You received this question notification because you are a member of yade-users

Re: [Yade-users] [Question #214773]: Question about ScGeom

2012-11-21 Thread Chiara Modenese
Question #214773 on Yade changed: https://answers.launchpad.net/yade/+question/214773 Chiara Modenese proposed the following answer: Hi Christian, I noticed that in your script you use Law2_ScGeom_MindlinPhys_HertzWithLinearShear. As explained in [1] that law is no longer maintained

Re: [Yade-users] [Question #212834]: Contact number estimation

2012-10-31 Thread Chiara Modenese
Question #212834 on Yade changed: https://answers.launchpad.net/yade/+question/212834 Status: Open = Answered Chiara Modenese proposed the following answer: Hi Nait, If you are looking for the number of interactions of a specific body (say body with id 0), then you can type this: O.bodies

Re: [Yade-users] [Question #212834]: Contact number estimation

2012-10-31 Thread Chiara Modenese
Question #212834 on Yade changed: https://answers.launchpad.net/yade/+question/212834 Chiara Modenese proposed the following answer: Hi Nait, Here is a simple example. ii=O.bodies[id].intrs() # list of interactions with body id len(ii) # number of interactions to which body id participates I

Re: [Yade-users] [Question #210907]: on sample preparation of real granula materials

2012-10-11 Thread Chiara Modenese
Question #210907 on Yade changed: https://answers.launchpad.net/yade/+question/210907 Chiara Modenese proposed the following answer: On 11 Oct 2012, at 08:56, wangxiaoliang wrote: Actually, I am talking about the sample controlling parameters, somebody use porosity, somebody use relative

Re: [Yade-users] [Question #210907]: on sample preparation of real granula materials

2012-10-11 Thread Chiara Modenese
Question #210907 on Yade changed: https://answers.launchpad.net/yade/+question/210907 Chiara Modenese proposed the following answer: On 11 Oct 2012, at 11:46, Chareyre wrote: - In 2, there is no need to calm. If it goes very dynamic it's because the parameters of the growth are not well

Re: [Yade-users] [Question #210907]: on sample preparation of real granula materials

2012-10-11 Thread Chiara Modenese
Question #210907 on Yade changed: https://answers.launchpad.net/yade/+question/210907 Chiara Modenese proposed the following answer: On 11 Oct 2012, at 15:11, Chareyre wrote: Question #210907 on Yade changed: https://answers.launchpad.net/yade/+question/210907 Chareyre posted a new comment

Re: [Yade-users] [Question #208965]: topics on rolling resistance modeling granular media

2012-09-25 Thread Chiara Modenese
Question #208965 on Yade changed: https://answers.launchpad.net/yade/+question/208965 Chiara Modenese proposed the following answer: Hi Wang, We cannot help you further unless you provide us with an example. We used the law you mention successfully here and we did not find any strange results

Re: [Yade-users] [Question #208965]: topics on rolling resistance modeling granular media

2012-09-20 Thread Chiara Modenese
Question #208965 on Yade changed: https://answers.launchpad.net/yade/+question/208965 Chiara Modenese proposed the following answer: On 20 Sep 2012, at 10:20, Chareyre wrote: Question #208965 on Yade changed: https://answers.launchpad.net/yade/+question/208965 Chareyre proposed

Re: [Yade-users] [Question #207881]: Unphysical behaviour, and Verlet collision detection

2012-09-06 Thread Chiara Modenese
Question #207881 on Yade changed: https://answers.launchpad.net/yade/+question/207881 Chiara Modenese proposed the following answer: Hi Giulia, I doubt this behaviour has anything to do with verletDist. Assuming your cylinder is working all right, the problem might be related to one or more

Re: [Yade-users] [Question #206415]: getStress() applies for clumps?

2012-08-22 Thread Chiara Modenese
Question #206415 on Yade changed: https://answers.launchpad.net/yade/+question/206415 Status: Open = Answered Chiara Modenese proposed the following answer: On 22 Aug 2012, at 09:46, ceguo wrote: Question #206415 on Yade changed: https://answers.launchpad.net/yade/+question/206415

Re: [Yade-users] [Question #206415]: getStress() applies for clumps?

2012-08-21 Thread Chiara Modenese
Question #206415 on Yade changed: https://answers.launchpad.net/yade/+question/206415 Chiara Modenese proposed the following answer: On 21 Aug 2012, at 14:30, ceguo wrote: New question #206415 on Yade: https://answers.launchpad.net/yade/+question/206415 Hi, Kozicki, et al. (2012

Re: [Yade-users] [Question #205137]: impact of sphere on a granular media

2012-08-06 Thread Chiara Modenese
Question #205137 on Yade changed: https://answers.launchpad.net/yade/+question/205137 Status: Open = Answered Chiara Modenese proposed the following answer: On 6 Aug 2012, at 15:41, mer samuel wrote: New question #205137 on Yade: https://answers.launchpad.net/yade/+question/205137 Hi

Re: [Yade-users] [Question #204632]: tesselationWrapper

2012-07-31 Thread Chiara Modenese
Question #204632 on Yade changed: https://answers.launchpad.net/yade/+question/204632 Status: Open = Answered Chiara Modenese proposed the following answer: On 31 Jul 2012, at 06:16, tranviet wrote: New question #204632 on Yade: https://answers.launchpad.net/yade/+question/204632

Re: [Yade-users] [Question #203709]: Which physical parameters i need and how to add them

2012-07-20 Thread Chiara Modenese
Question #203709 on Yade changed: https://answers.launchpad.net/yade/+question/203709 Status: Open = Answered Chiara Modenese proposed the following answer: Hi Christian, Could you please (briefly) explain here what material you aim to simulate and what kind of test you want to run

Re: [Yade-users] [Question #203709]: Which physical parameters i need and how to add them

2012-07-20 Thread Chiara Modenese
Question #203709 on Yade changed: https://answers.launchpad.net/yade/+question/203709 Chiara Modenese proposed the following answer: Sorry, I get now the type of question. Christian, follow Jerome's suggestions, you should be fine then. Chiara On 20 Jul 2012, at 13:11, jduriez wrote: Question

[Yade-users] [Question #203339]: Visualize displacements

2012-07-16 Thread Chiara Modenese
New question #203339 on Yade: https://answers.launchpad.net/yade/+question/203339 Hi, Do you know how to compute/visualise displacement in Yade? I see there is an attribute called displ to b.state. Can that be used for such a purpose? I suppose that one has to update the refPos in order to do

Re: [Yade-users] [Question #191395]: visualize utils.box with paraview

2012-07-16 Thread Chiara Modenese
Question #191395 on Yade changed: https://answers.launchpad.net/yade/+question/191395 Chiara Modenese posted a new comment: Is this feature easy to implement? I would need now as I cannot display boxes with Paraview ATM. Thanks for advice, Chiara -- You received this question notification

Re: [Yade-users] [Question #199704]: getStress for ScGeom

2012-06-24 Thread Chiara Modenese
Question #199704 on Yade changed: https://answers.launchpad.net/yade/+question/199704 Chiara Modenese proposed the following answer: On 24 Jun 2012, at 11:15, Chareyre wrote: Question #199704 on Yade changed: https://answers.launchpad.net/yade/+question/199704 Chareyre proposed

Re: [Yade-users] [Question #199704]: getStress for ScGeom

2012-06-23 Thread Chiara Modenese
Question #199704 on Yade changed: https://answers.launchpad.net/yade/+question/199704 Status: Open = Answered Chiara Modenese proposed the following answer: On 23 Jun 2012, at 10:26, ceguo wrote: Question #199704 on Yade changed: https://answers.launchpad.net/yade/+question/199704

Re: [Yade-users] [Question #199704]: getStress for ScGeom

2012-06-23 Thread Chiara Modenese
Question #199704 on Yade changed: https://answers.launchpad.net/yade/+question/199704 Chiara Modenese proposed the following answer: OK, then you mean the tangential stiffnesses. I thought you referred to some equivalent constant value. Thanks for reply, Chiara On 23 Jun 2012, at 14:45, ceguo

Re: [Yade-users] [Question #199704]: getStress for ScGeom

2012-06-23 Thread Chiara Modenese
Question #199704 on Yade changed: https://answers.launchpad.net/yade/+question/199704 Chiara Modenese proposed the following answer: Hi Bruno, I need this feature (actually thanks for pointing this out) so I would be happy to code it. How do you suggest it? Thanks, Chiara On 23 Jun 2012, at 18

Re: [Yade-users] [Question #199704]: getStress for ScGeom

2012-06-23 Thread Chiara Modenese
Question #199704 on Yade changed: https://answers.launchpad.net/yade/+question/199704 Chiara Modenese proposed the following answer: On 23 Jun 2012, at 20:01, Chareyre wrote: Question #199704 on Yade changed: https://answers.launchpad.net/yade/+question/199704 Chareyre proposed

Re: [Yade-users] [Question #199704]: getStress for ScGeom

2012-06-23 Thread Chiara Modenese
Question #199704 on Yade changed: https://answers.launchpad.net/yade/+question/199704 Chiara Modenese proposed the following answer: On 23 Jun 2012, at 20:01, Chareyre wrote: Question #199704 on Yade changed: https://answers.launchpad.net/yade/+question/199704 Chareyre proposed

Re: [Yade-users] [Question #200537]: deleting a body

2012-06-15 Thread Chiara Modenese
Question #200537 on Yade changed: https://answers.launchpad.net/yade/+question/200537 Chiara Modenese posted a new comment: On 15 Jun 2012, at 14:36, jduriez wrote: Question #200537 on Yade changed: https://answers.launchpad.net/yade/+question/200537 Status: Open = Answered jduriez

Re: [Yade-users] [Question #197576]: Contact time duration

2012-06-08 Thread Chiara Modenese
Question #197576 on Yade changed: https://answers.launchpad.net/yade/+question/197576 Status: Expired = Open Chiara Modenese is still having a problem: Hi Bruno, As for this question, I was thinking to something like if (uN0) { phys-contact_time=(scene-iter-contact-iterMadeReal)*scene-dt

Re: [Yade-users] [Question #199540]: Who is usung these contact laws?

2012-06-06 Thread Chiara Modenese
Question #199540 on Yade changed: https://answers.launchpad.net/yade/+question/199540 Status: Open = Answered Chiara Modenese proposed the following answer: Hi Bruno, If I am not wrong: Law2_SCG_MomentPhys_CohesionlessMomentRotation is a duplicate

Re: [Yade-users] [Question #199540]: Who is usung these contact laws?

2012-06-06 Thread Chiara Modenese
Question #199540 on Yade changed: https://answers.launchpad.net/yade/+question/199540 Chiara Modenese proposed the following answer: On 6 Jun 2012, at 10:40, Chareyre wrote: Question #199540 on Yade changed: https://answers.launchpad.net/yade/+question/199540 Chareyre posted a new comment

Re: [Yade-users] [Question #199540]: Who is usung these contact laws?

2012-06-06 Thread Chiara Modenese
Question #199540 on Yade changed: https://answers.launchpad.net/yade/+question/199540 Status: Open = Answered Chiara Modenese proposed the following answer: On 6 Jun 2012, at 11:41, Chareyre wrote: Question #199540 on Yade changed: https://answers.launchpad.net/yade/+question/199540

Re: [Yade-users] [Question #199540]: Who is usung these contact laws?

2012-06-06 Thread Chiara Modenese
Question #199540 on Yade changed: https://answers.launchpad.net/yade/+question/199540 Chiara Modenese proposed the following answer: On 6 Jun 2012, at 13:55, Chareyre wrote: Question #199540 on Yade changed: https://answers.launchpad.net/yade/+question/199540 Chareyre posted a new comment

Re: [Yade-users] [Question #199585]: how can i simulate rolling friction?

2012-06-06 Thread Chiara Modenese
Question #199585 on Yade changed: https://answers.launchpad.net/yade/+question/199585 Chiara Modenese proposed the following answer: Hi Jacob, As for point 1: I introduced the rolling friction in HM Law some time ago. Please have a look at the documentation, in particular at: https://yade

Re: [Yade-users] [Question #199585]: how can i simulate rolling friction?

2012-06-06 Thread Chiara Modenese
Question #199585 on Yade changed: https://answers.launchpad.net/yade/+question/199585 Chiara Modenese proposed the following answer: On 6 Jun 2012, at 15:10, Christian Jakob wrote: Question #199585 on Yade changed: https://answers.launchpad.net/yade/+question/199585 Christian Jakob posted

Re: [Yade-users] [Question #198989]: Symmetric boundary

2012-06-01 Thread Chiara Modenese
Question #198989 on Yade changed: https://answers.launchpad.net/yade/+question/198989 Status: Answered = Open Chiara Modenese is still having a problem: On 31 May 2012, at 21:10, Chareyre wrote: Question #198989 on Yade changed: https://answers.launchpad.net/yade/+question/198989

[Yade-users] [Question #198989]: Symmetric boundary

2012-05-31 Thread Chiara Modenese
New question #198989 on Yade: https://answers.launchpad.net/yade/+question/198989 Hi there, Do you know how to model a symmetric boundary in Yade? Thanks for ideas, Chiara -- You received this question notification because you are a member of yade-users, which is an answer contact for Yade.

Re: [Yade-users] [Question #197576]: Contact time duration

2012-05-18 Thread Chiara Modenese
Question #197576 on Yade changed: https://answers.launchpad.net/yade/+question/197576 Status: Answered = Open Chiara Modenese is still having a problem: On 18 May 2012, at 14:15, Chareyre wrote: Your question #197576 on Yade changed: https://answers.launchpad.net/yade/+question/197576

Re: [Yade-users] [Question #197438]: No interactions after erasing body

2012-05-18 Thread Chiara Modenese
Question #197438 on Yade changed: https://answers.launchpad.net/yade/+question/197438 Chiara Modenese proposed the following answer: Hi, It is not very clear to me how this was fixed. Could you please say something more about it, Anton (or Bruno)? Thank you very much, Chiara On 18 May 2012

Re: [Yade-users] the results are different between parallel and non parallel running.

2012-05-15 Thread Chiara Modenese
Hi Liqing, I think you should specify how big is the difference. If the difference is negligible, that is an expected result as explained in Yade documentation and as Bruno points out. If the difference is significant, that is most likely a bug in the code. I guess you are in the former case?

Re: [Yade-users] Enquiry

2012-05-02 Thread Chiara Modenese
Hi Francois, first you should add the label parameter to your engine so that you can easily call it at need. Something like: O.engines=[..., NewtonIntegrator(damping=0.7,label='Integrator')] Then: Integrator.damping=0.2 # to change the value of the damping parameter By subtract I

Re: [Yade-users] [Question #194761]: is particle distribution true or close to real sand simulated by yade

2012-04-26 Thread Chiara Modenese
Question #194761 on Yade changed: https://answers.launchpad.net/yade/+question/194761 Chiara Modenese proposed the following answer: Hi Wangxiaoliang, The closer you get to the physics of the real material with your numerical model, the easier the calibration should become, up to the point

Re: [Yade-users] [Question #191800]: convergence very very slow

2012-03-28 Thread Chiara Modenese
Question #191800 on Yade changed: https://answers.launchpad.net/yade/+question/191800 Status: Open = Answered Chiara Modenese proposed the following answer: On 28/03/2012 04:05, wangxiaoliang wrote: Question #191800 on Yade changed: https://answers.launchpad.net/yade/+question/191800

Re: [Yade-users] [Question #191800]: convergence very very slow

2012-03-27 Thread Chiara Modenese
Question #191800 on Yade changed: https://answers.launchpad.net/yade/+question/191800 Status: Open = Answered Chiara Modenese proposed the following answer: Hi, I hope to interpret correctly what you are saying. Your time step is too small and thus your test runs very slowly. It is a well

Re: [Yade-users] [Question #191800]: convergence very very slow

2012-03-27 Thread Chiara Modenese
Question #191800 on Yade changed: https://answers.launchpad.net/yade/+question/191800 Chiara Modenese proposed the following answer: On 27 Mar 2012, at 12:05, Chareyre wrote: Question #191800 on Yade changed: https://answers.launchpad.net/yade/+question/191800 Chareyre proposed

Re: [Yade-users] [Question #191800]: convergence very very slow

2012-03-27 Thread Chiara Modenese
Question #191800 on Yade changed: https://answers.launchpad.net/yade/+question/191800 Chiara Modenese proposed the following answer: On 27/03/12 13:35, Chareyre wrote: Question #191800 on Yade changed: https://answers.launchpad.net/yade/+question/191800 Chareyre proposed the following answer

Re: [Yade-users] [Question #191489]: How to translate a periodic cell ?

2012-03-23 Thread Chiara Modenese
Question #191489 on Yade changed: https://answers.launchpad.net/yade/+question/191489 Status: Open = Answered Chiara Modenese proposed the following answer: On 23/03/2012 10:10, Kneib François wrote: New question #191489 on Yade: https://answers.launchpad.net/yade/+question/191489 Hi

Re: [Yade-users] [Question #191412]: import module problem

2012-03-23 Thread Chiara Modenese
Question #191412 on Yade changed: https://answers.launchpad.net/yade/+question/191412 Chiara Modenese proposed the following answer: On 23/03/12 13:05, Anton Gladky wrote: Question #191412 on Yade changed: https://answers.launchpad.net/yade/+question/191412 Anton Gladky proposed the following

Re: [Yade-users] [Question #191412]: import module problem

2012-03-23 Thread Chiara Modenese
Question #191412 on Yade changed: https://answers.launchpad.net/yade/+question/191412 Chiara Modenese proposed the following answer: On 23/03/12 13:30, Rinaldi Giuseppe wrote: Question #191412 on Yade changed: https://answers.launchpad.net/yade/+question/191412 Rinaldi Giuseppe posted a new

Re: [Yade-users] [Question #191489]: How to translate a periodic cell ?

2012-03-23 Thread Chiara Modenese
Question #191489 on Yade changed: https://answers.launchpad.net/yade/+question/191489 Chiara Modenese proposed the following answer: On 23/03/12 12:50, Kneib François wrote: Question #191489 on Yade changed: https://answers.launchpad.net/yade/+question/191489 Kneib François posted a new

Re: [Yade-users] [Question #190529]: deleting some liquid bridges in Law2_ScGeom_CapillaryPhys_Capillarity

2012-03-21 Thread Chiara Modenese
Question #190529 on Yade changed: https://answers.launchpad.net/yade/+question/190529 Status: Open = Answered Chiara Modenese proposed the following answer: On 20/03/2012 17:30, Christian Jakob wrote: Question #190529 on Yade changed: https://answers.launchpad.net/yade/+question/190529

Re: [Yade-users] [Question #190529]: deleting some liquid bridges in Law2_ScGeom_CapillaryPhys_Capillarity

2012-03-19 Thread Chiara Modenese
Question #190529 on Yade changed: https://answers.launchpad.net/yade/+question/190529 Status: Open = Answered Chiara Modenese proposed the following answer: On 19/03/12 07:30, Christian Jakob wrote: Question #190529 on Yade changed: https://answers.launchpad.net/yade/+question/190529

[Yade-users] [Question #191084]: clumps - particle size distribution

2012-03-19 Thread Chiara Modenese
New question #191084 on Yade: https://answers.launchpad.net/yade/+question/191084 Hi guys, do you think is possible to follow a specific particle size distribution while using clumps? Does anybody have experience with that and maybe can suggest a simple method how to do it? Thank you for

Re: [Yade-users] [Question #191084]: clumps - particle size distribution

2012-03-19 Thread Chiara Modenese
Question #191084 on Yade changed: https://answers.launchpad.net/yade/+question/191084 Chiara Modenese gave more information on the question: On 19/03/12 12:11, Christian Jakob wrote: Thank you, Christian, it makes sense to me. I will try to do it in python. Cheers, Chiara Question #191084

Re: [Yade-users] [Question #191084]: clumps - particle size distribution

2012-03-19 Thread Chiara Modenese
Question #191084 on Yade changed: https://answers.launchpad.net/yade/+question/191084 Chiara Modenese gave more information on the question: On 19/03/12 12:45, Chiara Modenese wrote: Question #191084 on Yade changed: https://answers.launchpad.net/yade/+question/191084 Chiara Modenese gave

Re: [Yade-users] [Question #190776]: too many fluctuations in 2d simulation

2012-03-15 Thread Chiara Modenese
Question #190776 on Yade changed: https://answers.launchpad.net/yade/+question/190776 Status: Open = Answered Chiara Modenese proposed the following answer: On 15/03/12 14:55, ceguo wrote: New question #190776 on Yade: https://answers.launchpad.net/yade/+question/190776 Hi, Due to my

Re: [Yade-users] [Question #190237]: install yade on a virtual machine

2012-03-10 Thread Chiara Modenese
Question #190237 on Yade changed: https://answers.launchpad.net/yade/+question/190237 Chiara Modenese proposed the following answer: Hi, as Anton suggested you can install Yade from packages following this link: https://answers.launchpad.net/yade/+faq/1789 for stable versions. However

Re: [Yade-users] [Question #190075]: About NewtonIntegrator(damping) and utils.PWaveTimeStep()

2012-03-09 Thread Chiara Modenese
Question #190075 on Yade changed: https://answers.launchpad.net/yade/+question/190075 Status: Open = Answered Chiara Modenese proposed the following answer: Hi, 1. The damping in NewtonIntegrator is an artificial parameter. If you want to use it you need to make sure that it does

Re: [Yade-users] [Question #189100]: contact point with periodic boundary

2012-02-29 Thread Chiara Modenese
Question #189100 on Yade changed: https://answers.launchpad.net/yade/+question/189100 Status: Answered = Solved Chiara Modenese confirmed that the question is solved: Thanks Chareyre, that solved my question. -- You received this question notification because you are a member of yade-users

[Yade-users] [Question #189100]: contact point with periodic boundary

2012-02-28 Thread Chiara Modenese
New question #189100 on Yade: https://answers.launchpad.net/yade/+question/189100 Hi there (Bruno?), when periodic boundary is employed, is the position of the contact point (which can be accessed from i.geom) always inside the main periodic cell or can it be in other locations too? I know that

Re: [Yade-users] [Question #188478]: quaternions

2012-02-22 Thread Chiara Modenese
Question #188478 on Yade changed: https://answers.launchpad.net/yade/+question/188478 Status: Answered = Open Chiara Modenese is still having a problem: On 22 Feb 2012, at 11:55, Chareyre wrote: Your question #188478 on Yade changed: https://answers.launchpad.net/yade/+question/188478

Re: [Yade-users] [Question #188478]: quaternions

2012-02-22 Thread Chiara Modenese
Question #188478 on Yade changed: https://answers.launchpad.net/yade/+question/188478 Chiara Modenese posted a new comment: OK, thanks Bruno for clarification! C. -- You received this question notification because you are a member of yade-users, which is an answer contact for Yade

Re: [Yade-users] [Question #188478]: quaternions

2012-02-22 Thread Chiara Modenese
Question #188478 on Yade changed: https://answers.launchpad.net/yade/+question/188478 Status: Answered = Solved Chiara Modenese confirmed that the question is solved: Thanks Chareyre, that solved my question. -- You received this question notification because you are a member of yade-users

[Yade-users] [Question #188297]: Particles orientations

2012-02-20 Thread Chiara Modenese
New question #188297 on Yade: https://answers.launchpad.net/yade/+question/188297 Hi there, is there a way to store in the code the initial orientation of the particles and to call this (non-updated) value later inside the contact law and/or ScGeom? Thanks! Chiara -- You received this

Re: [Yade-users] [Question #188297]: Particles orientations

2012-02-20 Thread Chiara Modenese
Question #188297 on Yade changed: https://answers.launchpad.net/yade/+question/188297 Status: Answered = Open Chiara Modenese is still having a problem: On 20/02/12 15:00, Chareyre wrote: Your question #188297 on Yade changed: https://answers.launchpad.net/yade/+question/188297

Re: [Yade-users] [Question #186515]: Change Cell Transformation matrix

2012-02-02 Thread Chiara Modenese
Question #186515 on Yade changed: https://answers.launchpad.net/yade/+question/186515 Chiara Modenese proposed the following answer: On 02/02/12 10:21, Chareyre wrote: Question #186515 on Yade changed: https://answers.launchpad.net/yade/+question/186515 Chareyre proposed the following answer

Re: [Yade-users] [Question #186515]: Change Cell Transformation matrix

2012-02-01 Thread Chiara Modenese
I think that Giuseppe may have a point. One problem with shearing the periodic cell by rotating it is that you can reach very large deformations but at some point (I suppose) you have to stop shearing it (because, say, you reach a rotation of 90 degrees of the vertical boundaries). Now, one

Re: [Yade-users] [Question #185092]: VTK velocity PBCs

2012-01-18 Thread Chiara Modenese
Question #185092 on Yade changed: https://answers.launchpad.net/yade/+question/185092 Status: Answered = Solved Chiara Modenese confirmed that the question is solved: Thanks Jan Stránský, that solved my question. -- You received this question notification because you are a member of yade

Re: [Yade-users] [Question #175394]: numerical instability and small time steps

2011-12-02 Thread Chiara Modenese
Question #175394 on Yade changed: https://answers.launchpad.net/yade/+question/175394 Chiara Modenese proposed the following answer: Can you please tell us if the force-displacement curves at the contact match between the two codes? It would be good to know that both with and without damping

Re: [Yade-users] [Question #175394]: numerical instability and small time steps

2011-11-29 Thread Chiara Modenese
Question #175394 on Yade changed: https://answers.launchpad.net/yade/+question/175394 Status: Open = Answered Chiara Modenese proposed the following answer: I agree. The time step should be the same if computed the SAME way! If Christian is using viscous damping (are you?) in PFC

Re: [Yade-users] [Question #178830]: on sample generation to model the real granular sand

2011-11-17 Thread Chiara Modenese
Question #178830 on Yade changed: https://answers.launchpad.net/yade/+question/178830 Chiara Modenese proposed the following answer: Until now I did not detect any inconsistencies with my method (I also It is not consistence because changing the size of your particles does NOT do what you

Re: [Yade-users] [Question #178830]: on sample generation to model the real granular sand

2011-11-17 Thread Chiara Modenese
Question #178830 on Yade changed: https://answers.launchpad.net/yade/+question/178830 Chiara Modenese proposed the following answer: On 17 November 2011 15:25, Christian Jakob question178...@answers.launchpad.net wrote: Question #178830 on Yade changed: https://answers.launchpad.net/yade

Re: [Yade-users] [Question #177419]: shear flow - periodic boundary

2011-11-07 Thread Chiara Modenese
Question #177419 on Yade changed: https://answers.launchpad.net/yade/+question/177419 Status: Answered = Open Chiara Modenese is still having a problem: Apparently there is another method used in fluid mechanics called Lees Edwards where the periodic cells are sheared one over the other

Re: [Yade-users] [Question #177419]: shear flow - periodic boundary

2011-11-07 Thread Chiara Modenese
Question #177419 on Yade changed: https://answers.launchpad.net/yade/+question/177419 Status: Answered = Open Chiara Modenese is still having a problem: On 7 November 2011 11:15, Chareyre question177...@answers.launchpad.netwrote: Your question #177419 on Yade changed: https

Re: [Yade-users] [Question #177419]: shear flow - periodic boundary

2011-11-04 Thread Chiara Modenese
Question #177419 on Yade changed: https://answers.launchpad.net/yade/+question/177419 Status: Answered = Open Chiara Modenese is still having a problem: On 3 November 2011 16:20, Chareyre question177...@answers.launchpad.netwrote: Your question #177419 on Yade changed: https

Re: [Yade-users] [Question #176964]: large deformation - shear test

2011-11-03 Thread Chiara Modenese
Question #176964 on Yade changed: https://answers.launchpad.net/yade/+question/176964 Status: Answered = Solved Chiara Modenese confirmed that the question is solved: Thanks Chareyre, that solved my question. -- You received this question notification because you are a member of yade-users

[Yade-users] [Question #177419]: shear flow - periodic boundary

2011-11-03 Thread Chiara Modenese
New question #177419 on Yade: https://answers.launchpad.net/yade/+question/177419 Hi, is it possible to apply a velocity gradient along the vertical direction only but at the same time without rotating the periodic cell? To say it better: imagine the lateral periodic boundary remains vertical

Re: [Yade-users] [Question #175606]: How does particleSD_2d work ...???

2011-11-02 Thread Chiara Modenese
Question #175606 on Yade changed: https://answers.launchpad.net/yade/+question/175606 Chiara Modenese proposed the following answer: On 2 November 2011 13:18, Chiara Modenese c.moden...@gmail.com wrote: On 2 November 2011 12:50, Chareyre question175...@answers.launchpad.netwrote: Question

Re: [Yade-users] [Question #175606]: How does particleSD_2d work ...???

2011-11-02 Thread Chiara Modenese
Question #175606 on Yade changed: https://answers.launchpad.net/yade/+question/175606 Chiara Modenese proposed the following answer: On 2 November 2011 12:50, Chareyre question175...@answers.launchpad.netwrote: Question #175606 on Yade changed: https://answers.launchpad.net/yade/+question

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