Effects of plastic distortion in the lattice curvature zone of a crack tip

V. E. Panin, D. D. Moiseenko, P. V. Maksimov, S. V. Panin

Division for Materials Science

Research output: Contribution to journal › Article

Abstract

The paper proposes a discrete-continual method of excitable cellular automata for simulating the stress-strain state at crack tips and in notches with account of lattice curvature and plastic distortion through ion motion from lattice sites to interstices. The proposed nonlinear method allows one to determine the crack type and the character of fracture, to predict the possibility of dynamic rotations and structural turbulence, and to describe the processes of nonlinear wave structural transformations in strain localization bands involved in microporosity and tearing mode cracking.

Original language	English
Pages (from-to)	280-290
Number of pages	11
Journal	Physical Mesomechanics
Volume	20
Issue number	3
DOIs	https://doi.org/10.1134/S1029959917030043
Publication status	Published - 1 Jul 2017

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Keywords

cracks
dynamic rotations
fracture
lattice curvature
plastic distortion
singularity
structural turbulence

ASJC Scopus subject areas

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

Cite this

Panin, V. E., Moiseenko, D. D., Maksimov, P. V., & Panin, S. V. (2017). Effects of plastic distortion in the lattice curvature zone of a crack tip. Physical Mesomechanics, 20(3), 280-290. https://doi.org/10.1134/S1029959917030043

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Access to Document

10.1134/S1029959917030043