Re: [Yade-users] [Question #227410]: Internal friction angle between bodies?
Question #227410 on Yade changed: https://answers.launchpad.net/yade/+question/227410 Eugen Kubowsky posted a new comment: Yes, I also think that this was a good discussion ;) Maybe we should add something of it to the doc? -- You received this question notification because you are a member of yade-users, which 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 #227410]: Internal friction angle between bodies?
Question #227410 on Yade changed: https://answers.launchpad.net/yade/+question/227410 liucheng83 posted a new comment: yes，me too! But I donnot what's an easy way to do it, an editable doc that everyone can add things to it maybe great like ubuntu wiki! -- You received this question notification because you are a member of yade-users, which 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 #227410]: Internal friction angle between bodies?
Question #227410 on Yade changed: https://answers.launchpad.net/yade/+question/227410 Bruno Chareyre posted a new comment: In fact, for the most part, the discussions on friction angle are irrelevant to yade. They are questions on modeling, independently of which code is actually used, and they resurface periodically in this mailing list. If something is included somewhere, it would be better to include it in the documentation than wiki (@liucheng, any part of the documentation is already an editable text file that anyone can change, e.g. *1). Most users will not see the wiki and the question will be asked again. Normally, each functor should document itself and tell how contact parameters are defined. For FrictPhys IP2 it is the case. The problem is that the information is spread across the documentation and the reader doesn't really know where to find it. It is a good idea to elaborate a piece of documentation about this. The difficulty is that there is no obvious place for such general discussion. Feel free to suggest. *1: https://raw.github.com/yade/trunk/master/doc/sphinx/user.rst -- You received this question notification because you are a member of yade-users, which 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 #227410]: Internal friction angle between bodies?
Question #227410 on Yade changed: https://answers.launchpad.net/yade/+question/227410 Status: Open = Answered Jan Stránský proposed the following answer: Hello, either you can find this information in the source code, or you can ask here for the specific Ip2 functor (as you mentioned, each one may implement its own approach). For the two examples you gave: Ip2_CpmMat_CpmMat_CpmPhys: avg( tan(frictionAngle) ) is considered Ip2_FrictMat_FrictMat_FrictPhys: min( frictAngle ) is considered see also https://answers.launchpad.net/yade/+question/225776 cheers Jan 2013/4/25 liucheng83 question227...@answers.launchpad.net New question #227410 on Yade: https://answers.launchpad.net/yade/+question/227410 Hello, How to determine the internal friction angle between bodies? Like between two spheres, or sphere and facet? Is it true that interal_fri=min(fri1,fri2) except for Ip2_CpmMat_CpmMat_CpmPhys Here is 6.2.2 Other parameters in page 126 in yade--0.95.pdf - Other parameters Non-elastic parameters differ for various material models. Usually, though, they are averaged from the particles’ material properties, if it makes sense. For instance, Ip2_CpmMat_CpmMat_CpmPhys averages most quantities, while Ip2_FrictMat_FrictMat_FrictPhys computes internal friction angle as to avoid friction with bodies that are frictionless. -- -- You received this question notification because you are a member of yade-users, which 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 -- You received this question notification because you are a member of yade-users, which 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 #227410]: Internal friction angle between bodies?
Question #227410 on Yade changed: https://answers.launchpad.net/yade/+question/227410 liucheng83 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-users, which 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 #227410]: Internal friction angle between bodies?
Question #227410 on Yade changed: https://answers.launchpad.net/yade/+question/227410 Status: Answered = Solved liucheng83 confirmed that the question is solved: Thanks, Jan Really a good discussion for the problem of interal friciton angel. https://answers.launchpad.net/yade/+question/225776 -- You received this question notification because you are a member of yade-users, which 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 #227410]: Internal friction angle between bodies?
New question #227410 on Yade: https://answers.launchpad.net/yade/+question/227410 Hello, How to determine the internal friction angle between bodies? Like between two spheres, or sphere and facet? Is it true that interal_fri=min(fri1,fri2) except for Ip2_CpmMat_CpmMat_CpmPhys Here is 6.2.2 Other parameters in page 126 in yade--0.95.pdf - Other parameters Non-elastic parameters differ for various material models. Usually, though, they are averaged from the particles’ material properties, if it makes sense. For instance, Ip2_CpmMat_CpmMat_CpmPhys averages most quantities, while Ip2_FrictMat_FrictMat_FrictPhys computes internal friction angle as to avoid friction with bodies that are frictionless. -- -- You received this question notification because you are a member of yade-users, which 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
