Question #622071 on Yade changed: https://answers.launchpad.net/yade/+question/622071
Jan Stránský posted a new comment: > Is the reason that the stress calculation is approximate calculation? oppositely, the reason is exact calculation :-) in general, stress may be non-symmetric because the particle assembly is not in static equlibrium from moment point of view in "classical" mechanics, t_xy=t_yx holds under assumption of zero rotation, you assume strain=symgrad(displacement) and you don't care of antisym part anymore. In DEM, rotation and moments are important (in "classical" continuum, you have forces, but no moments)... just a veeery brief intro, have a look e.g. at [1] (1st google result of "Cosserat continuum", see especially slide 15) or other similar materials. In case, open a new question cheers Jan [1] http://alertgeomaterials.eu/data/school/2010/03%20Papamichos%20E%20Cosserat%20theory.pdf -- 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 : [email protected] Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
