Smolin A.   Eremina G.   Парпура Д.И.  

3D simulation of friction by movable cellular automaton method

Reporter: Smolin A.

A numerical 3D model of friction at the (meso-)scale of contact patch between steel samples and composite steel samples with carbon inclusions has been developed based on the movable cellular automaton method. The response function of automata simulating steel corresponds to an elastic- plastic body with linear hardening, and the function for simulating carbon corresponds to an elastic-plastic body with bilinear hardening. Von Mises criterion is used for breaking bonds between the automata, and the criterion based on plastic heat is used for coupling the automata.
The values of basic parameters of the model, as well as the loading conditions, are determined that allow the formation of the characteristic quasi-liquid layer in the friction zone. It was shown that the presence of carbon fibers in the contact region leads to decreasing of the coefficient of friction, lower values of stress, and higher shear strain in the friction zone.

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