Re: [Yade-users] [Question #275973]: Mannually Update Location of Components of Clumps
Question #275973 on Yade changed: https://answers.launchpad.net/yade/+question/275973 Christian Jakob proposed the following answer: If you really need to modify your clumps, I think O.bodies.releaseFromClump(0,3) O.bodies.addToClump([0],3) is the only way I know. -- 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 #275459]: Damping in Hertz-Mindlin contact law
Question #275459 on Yade changed: https://answers.launchpad.net/yade/+question/275459 lichangsheng posted a new comment: Hi Bettina, I had a look at (tsuji, 1992). I think your understanding of the paper of (Tsuji et at., 1992) is correct. It is described differently in the paper of (tsuji, 1992). The difference between (tsuji, 1992) and (cundall, 1979) may be that when the contact damping should be addad, before (Tsuji et at., 1992) or after (cundall, 1979) the check for Mohr-Coloumb criterion.I have thought for a few days. In the source code of yade(HertzMindlin.cpp lines 407-420), I think Mohr-Coulomb criterion may be violated as you described,although it is hard to happen. However, I'm not really sure which approach is better/more correct today. In the past, I also felt confused about this question. At present, I often adopt the local damping used in PFC2D (see PFC2D manual, Version 4.0 , Theory and Background). I will ask other people for this question. I will tell you, if I have a answer. I really hope some experts or you can give a reasonable interpretation. Thanks, LI Chang-Sheng -- 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 #275459]: Damping in Hertz-Mindlin contact law
Question #275459 on Yade changed: https://answers.launchpad.net/yade/+question/275459 Status: Open => Answered Bruno Chareyre proposed the following answer: Both ways are consistent. If it considered that friction coefficient gives an upper bound of the elastic force then the fact that elastic+viscous force can be larger is consistent (this is the current situation). If it is decided that the upper bound is an upper bound for the total force, then it should not exceed (not possible currently if I understand correctly). There is no "best" assumption in my opinion, they are both constitutive assumptions and which one is closer to reality may depend on the materials. -- 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 #275840]: Tetra/TetraPoly Element can not use clump?
Question #275840 on Yade changed: https://answers.launchpad.net/yade/+question/275840 Bruno Chareyre posted a new comment: >I thought updating might cause some strange trouble.. To not update frequently is for sure causing most of the troubles. It resulted in wasting many developments in the last years. So, especially if you have a complex task like a coupling, I would suggest to update as often as possible. Bruno -- 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 #275973]: Mannually Update Location of Components of Clumps
Question #275973 on Yade changed: https://answers.launchpad.net/yade/+question/275973 Status: Answered => Solved MikeZhao confirmed that the question is solved: Thank you for your work~ -- 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 #275840]: Tetra/TetraPoly Element can not use clump?
Question #275840 on Yade changed: https://answers.launchpad.net/yade/+question/275840 Bruno Chareyre posted a new comment: More than that, you should have small scripts integrated in the regression tests, so that you are warned if some changes in the source code have side effects on your code. Beside, I would be glad to discuss your project if you wish. You can register/write to yade-dev or email me personally, as you prefer. Bruno -- 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 #275459]: Damping in Hertz-Mindlin contact law
Question #275459 on Yade changed: https://answers.launchpad.net/yade/+question/275459 Status: Answered => Solved Bettina Suhr confirmed that the question is solved: Thank you, Li Chang-Sheng and Bruno. Your answers made the whole topic much clearer for me. -- 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
