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 | |
| Publication status | Published - 1 Jul 2017 |
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
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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