skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Controlling Strain Bursts and Avalanches at the Nano- to Micrometer Scale

Abstract

We demonstrate, through three-dimensional discrete dislocation dynamics simulations, that the complex dynamical response of nano- and microcrystals to external constraints can be tuned. Under load rate control, strain bursts are shown to exhibit scale-free avalanche statistics, similar to critical phenomena in many physical systems. For the other extreme of displacement rate control, strain burst response transitions to quasiperiodic oscillations, similar to stick-slip earthquakes. External load mode control is shown to enable a qualitative transition in the complex collective dynamics of dislocations from self-organized criticality to quasiperiodic oscillations.

Authors:
 [1];  [1];  [1]
  1. Univ. of California, Los Angeles, CA (United States). Mechanical and Aerospace Engineering Dept.
Publication Date:
Research Org.:
Univ. of California, Los Angeles, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Fusion Energy Sciences (FES)
OSTI Identifier:
1536432
Alternate Identifier(s):
OSTI ID: 1328249
Grant/Contract Number:  
FG02-03ER54708
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 117; Journal Issue: 15; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats

Cui, Yinan, Po, Giacomo, and Ghoniem, Nasr. Controlling Strain Bursts and Avalanches at the Nano- to Micrometer Scale. United States: N. p., 2016. Web. doi:10.1103/physrevlett.117.155502.
Cui, Yinan, Po, Giacomo, & Ghoniem, Nasr. Controlling Strain Bursts and Avalanches at the Nano- to Micrometer Scale. United States. https://doi.org/10.1103/physrevlett.117.155502
Cui, Yinan, Po, Giacomo, and Ghoniem, Nasr. 2016. "Controlling Strain Bursts and Avalanches at the Nano- to Micrometer Scale". United States. https://doi.org/10.1103/physrevlett.117.155502. https://www.osti.gov/servlets/purl/1536432.
@article{osti_1536432,
title = {Controlling Strain Bursts and Avalanches at the Nano- to Micrometer Scale},
author = {Cui, Yinan and Po, Giacomo and Ghoniem, Nasr},
abstractNote = {We demonstrate, through three-dimensional discrete dislocation dynamics simulations, that the complex dynamical response of nano- and microcrystals to external constraints can be tuned. Under load rate control, strain bursts are shown to exhibit scale-free avalanche statistics, similar to critical phenomena in many physical systems. For the other extreme of displacement rate control, strain burst response transitions to quasiperiodic oscillations, similar to stick-slip earthquakes. External load mode control is shown to enable a qualitative transition in the complex collective dynamics of dislocations from self-organized criticality to quasiperiodic oscillations.},
doi = {10.1103/physrevlett.117.155502},
url = {https://www.osti.gov/biblio/1536432}, journal = {Physical Review Letters},
issn = {0031-9007},
number = 15,
volume = 117,
place = {United States},
year = {2016},
month = {10}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Citation Metrics:
Cited by: 2 works
Citation information provided by
Web of Science

Save / Share:

Works referenced in this record:

The origin of strain avalanches in sub-micron plasticity of fcc metals
journal, May 2015


Dislocation arrangement in small crystal volumes determines power-law size dependence of yield strength
journal, June 2013


The role of the weakest-link mechanism in controlling the plasticity of micropillars
journal, January 2009


An experimental investigation of intermittent flow and strain burst scaling behavior in LiF crystals during microcompression testing
journal, September 2010


Dislocation transport and intermittency in the plasticity of crystalline solids
journal, January 2009


Quasi-periodic events in crystal plasticity and the self-organized avalanche oscillator
journal, October 2012


Scale-free behavior of displacement bursts: Lower limit and scaling exponent
journal, October 2012


Slip statistics of dislocation avalanches under different loading modes
journal, April 2015


Unravelling the physics of size-dependent dislocation-mediated plasticity
journal, January 2015


Singularity-free dislocation dynamics with strain gradient elasticity
journal, August 2014


Nanoscale gold pillars strengthened through dislocation starvation
journal, June 2006


A methodology to investigate size scale effects in crystalline plasticity using uniaxial compression testing
journal, July 2005


Universal Quake Statistics: From Compressed Nanocrystals to Earthquakes
journal, November 2015


Self-Organized Branching Processes: Mean-Field Theory for Avalanches
journal, November 1995


Fundamental Differences in Mechanical Behavior between Two Types of Crystals at the Nanoscale
journal, April 2008


Dislocation Avalanches, Strain Bursts, and the Problem of Plastic Forming at the Micrometer Scale
journal, October 2007


Evidence for universal intermittent crystal plasticity from acoustic emission and high-resolution extensometry experiments
journal, December 2007


Plasticity goes supercriticial
journal, June 2005


Scale-Free Intermittent Flow in Crystal Plasticity
journal, May 2006


Overview of experiments on microcrystal plasticity in FCC-derivative materials: selected challenges for modelling and simulation of plasticity
journal, February 2007


A simple analytic theory for the statistics of avalanches in sheared granular materials
journal, March 2011


Slip avalanches in crystal plasticity: scaling of the avalanche cut-off
journal, April 2007


Scale invariance in plastic flow of crystalline solids
journal, January 2006


Intermittent dislocation flow in viscoplastic deformation
journal, April 2001


Statistics of Dislocation Slip Avalanches in Nanosized Single Crystals Show Tuned Critical Behavior Predicted by a Simple Mean Field Model
journal, August 2012


Stochastic nature of plasticity of aluminum micro-pillars
journal, May 2008