Inelastic rotations and pseudo-turbulent plastic avalanches in crystals
arXiv:2203.08711 · doi:10.1103/PhysRevE.107.025004
Abstract
Plastic deformations in crystals often produce textures in the form of randomly oriented patches of the unstressed lattice. We use a novel mesoscopic Landau-type model of crystal plasticity to show that in such textures large crystallographic lattice rotations can originate from a highly coordinated inelastic slip at the microscale. Our numerical experiments show that dislocation avalanches, which lead to the formation of such rotations, involve pseudo-turbulent motions with power-law distributed spatial correlations.
References in corpus (31)
- Front propagation into unstable states
- On the nature of surface roughness with application to contact mechanics, sealing, rubber friction and adhesion
- Probing the ultimate limits of metal plasticity
- Turbulent-like fluctuations in quasistatic flow of granular media
- Ferroelastic Dynamics and Strain Compatibility
- Simple shear is not so simple
- Avalanches and Plastic Flow in Crystal Plasticity: An Overview
- Extreme active matter at high densities
- Particle displacements in the elastic deformation of amorphous materials: local fluctuations vs. non-affine field
- An experimental assessment of displacement fluctuations in a 2D granular material subjected to shear
- A minimal integer automaton behind crystal plasticity
- Unraveling the dislocation core structure at a van der Waals gap in bismuth telluride
- A coarse-grained phase-field crystal model of plastic motion
- On the critical nature of plastic flow: one and two dimensional models
- Plastic Flow in Two-Dimensional Solids
- Landau theory of crystal plasticity
- Fractal Heterogeneous Media
- Continuum Representation of Systems of Dislocation Lines: A General Method for Deriving Closed-Form Evolution Equations
- Discrete models of dislocations and their motion in cubic crystals
- Rigidity-Controlled Crossover: From Spinodal to Critical Failure
- Excitation spectra in crystal plasticity
- Avalanche Interpretation of the Power-Law Energy Spectrum in Three-Dimensional Dense Granular Flow
- Variety of scaling behaviors in nanocrystalline plasticity
- On the computational solution of vector-density based continuum dislocation dynamics models: a comparison of two plastic distortion and stress update algorithms
- Scaling in Plasticity-Induced Cell-Boundary Microstructure: Fragmentation and Rotational Diffusion
- Anisotropic velocity statistics of topological defects under shear flow
- On the dynamics of curved dislocation ensembles
- Origin of stabilization of macrotwin boundaries in martensites
- Is dislocation flow turbulent in deformed crystals?
- Flory-like Statistics of Fracture in Fiber Bundle Model as obtained via Kolmogorov Dispersion for Turbulence: A conjecture
- Correlations in the shear flow of athermal amorphous solids: A principal component analysis