> The interesting thing, what I have recently discovered, is that it is > better to use as less possible friction coefficient between acting > part of the press (facets) and specimen (better 0). So, we imitate > greased by oil the surface of the press. > > In this case we get the most stable results. If the friction > coefficient is large (for example, 0.4-0.5), results are changing > randomly, depending on size specimen, number of grains etc... > > What do you think about that?
It does have big influence; in examples/concrete/uniax.py, only displacement along the strain axis is prescribed, while all other (including rotations) are kept free (frictionless support, if you wish). UniaxialStrainer is quite flexible in this (https://www.yade-dem.org/sphinx/yade.wrapper.html#yade.wrapper.UniaxialStrainer.blockDisplacements and blockRotations). v _______________________________________________ Mailing list: https://launchpad.net/~yade-users Post to : [email protected] Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
