Re: [Yade-users] [Question #696704]: How to get P-wave and S-wave velocity
Question #696704 on Yade changed: https://answers.launchpad.net/yade/+question/696704 Status: Answered => Solved Leonard confirmed that the question is solved: Thanks Jérôme and 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 #696704]: How to get P-wave and S-wave velocity
Question #696704 on Yade changed: https://answers.launchpad.net/yade/+question/696704 Bruno Chareyre proposed the following answer: Hi, PWave velocity is (bulk modulus /density)**0.5 with "modulus" and "density" defined at the macroscale. For density it is simply mat.density * (1-porosity). For the modulus, you can evaluate it with a static loading (uniaxial compression). I would discourage trying to actually simulate a wave propagation, it is particularly complex and error-prone. 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 #696704]: How to get P-wave and S-wave velocity
Question #696704 on Yade changed: https://answers.launchpad.net/yade/+question/696704 Jérôme Duriez posted a new comment: The above should read > in a packing including bodies with these *parameters* Sorry -- 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 #696704]: How to get P-wave and S-wave velocity
Question #696704 on Yade changed: https://answers.launchpad.net/yade/+question/696704 Status: Open => Answered Jérôme Duriez proposed the following answer: I think what is usually coined in the doc as P-Wave velocity is (b.mat.young / b.mat.density)**0.5 # b a body with a material having these young and density attributes -- most of them. Whether (b.mat.young / b.mat.density)**0.5 actually is a elastic wave velocity in a packing including bodies with these velocities is another question, in my opinion (and the answer would be no), but this is part of the classical confusion about these "young" parameter.. As for the S-wave velocity, it's kind of the same: the only way I see to measure it is to actually simulate a S wave and to measure its speed. (Note that in the particular case of your link, the doc is even more unfortunate in my opinion -- on my TODO list by the way.. -- since PolyhedraMat.young may not be a stress-like quantity in Pa) -- 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 #696704]: How to get P-wave and S-wave velocity
New question #696704 on Yade: https://answers.launchpad.net/yade/+question/696704 Hi, I'd like to ask that how to get the P-wave velocity and Shear wave velocity in Yade for a DEM soil model? According to [1], in which it gets timestep accoring to the velocity of P-Wave propagation, so I guess there is already an function that can directly get the P-Wave velocity, but I didn't find it. For the Shear wave velocity, do you have any suggestions to get it? Thanks! Leonard [1]https://yade-dev.gitlab.io/trunk/yade.polyhedra_utils.html?highlight=pwave#yade._polyhedra_utils.PWaveTimeStep -- 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
