Role of local curvature in grain boundary sliding in a deformed polycrystal

Abstract

The paper considers experimental and theoretical principles of accounting for curvature in multiscale computer simulation of the behavior of interfaces as independent planar subsystems in a loaded polycrystal. Dynamics of matter and energy flows along grain boundaries is studied using a hybrid discrete-continuous method of excitable cellular automata, which combines synergetic principles of discrete switching and laws of continuum mechanics. It is shown that these flows have a rotational-wave nature and depend on the loading conditions of a grain boundary.

Original language	English
Pages (from-to)	335-347
Number of pages	13
Journal	Physical Mesomechanics
Volume	16
Issue number	4
DOIs	https://doi.org/10.1134/S1029959913040073
Publication status	Published - 2013

Keywords

cellular automata method
computer simulation
grain boundaries
open systems
physical mesomechanics
structure curvature

ASJC Scopus subject areas

Mechanics of Materials
Materials Science(all)
Condensed Matter Physics
Surfaces and Interfaces

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keywords = "cellular automata method, computer simulation, grain boundaries, open systems, physical mesomechanics, structure curvature",

author = "Moiseenko, {D. D.} and Panin, {V. E.} and Elsukova, {T. F.}",

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AU - Panin, V. E.

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AB - The paper considers experimental and theoretical principles of accounting for curvature in multiscale computer simulation of the behavior of interfaces as independent planar subsystems in a loaded polycrystal. Dynamics of matter and energy flows along grain boundaries is studied using a hybrid discrete-continuous method of excitable cellular automata, which combines synergetic principles of discrete switching and laws of continuum mechanics. It is shown that these flows have a rotational-wave nature and depend on the loading conditions of a grain boundary.

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KW - open systems

KW - physical mesomechanics

KW - structure curvature

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