Question #665246 on Yade changed: https://answers.launchpad.net/yade/+question/665246
Luc Scholtès proposed the following answer: Hi, My guess: You want to know how to relate the yielding stress of your material (e.g. deviation from linearity of the stress strain curve for a uniaxial compression test) with the interparticle properties of your contact model (e.g. cohesion and friction angle). If that's what you are after, you need to perform simulations on a particle packing (e.g. a triaxial compression) to see how the interparticle parameters (e.g. friction angle) affect the stress strain response of your material and thus its macromechanical properties (e.g. yielding stress). The relation between interparticle parameters and macromechanical properties is not direct in DEM (unless you use regular packings of particles). That's usually how we calibrate DEM model: trial and error to find the combination of interparticle parameters which gives the desired macromechanical properties. Of course, this micro- macro relationship is also a function of the packing structure (porosity, particle size distribution, homogeneity, etc...). Have a look at this article to get some ideas about the calibration procedure: https://link.springer.com/article/10.1007%2Fs10035-016-0687-0 I might be off topic though since your question is not very clear... Luc -- 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