Yade

Questions about shear strain algorithm in Yade

Asked by Fu zuoguang

Dear Bruno Chareyre and all users:
        Thanks for helping me last time and now my task is to understand the DEM algorithms in Yade and how do they work. So the 'Yade DEM Formulation(2011)' document may provide me this chance but I have been confused by the subsection of 'Shear strain(1.3.2)' due to that I can not understand the meaning of (△uT) 1，(△uT) 2 and (△uT) 3.
I want to know the answer and to get the paper including some more details about this algorithm.

Seeking your help !

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Bruno Chareyre (bruno-chareyre) said : 		#1

Dear Fu,
Two papers are already mentioned in the section you refer to: Alonso2004 and Luding2008, did you check them?
Basically, terms 1 and 2 are rotations of the contact, and 3 is the relative motion.

Can you help with this problem?

Provide an answer of your own, or ask Fu zuoguang for more information if necessary.

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