Online citations, reference lists, and bibliographies.
Please confirm you are human
(Sign Up for free to never see this)
← Back to Search

Molecular-Level Mechanical Instabilities And Enhanced Self-Diffusion In Flowing Liquids

D. Malandro, D. Lacks
Published 1998 · Materials Science

Save to my Library
Download PDF
Analyze on Scholarcy
Share
Molecular simulations show that shear strains arising from liquid flow cause local minima of the potential-energy surface to disappear, leading to mechanical instabilities which force the system towards alternate local minima. Associated with these mechanical instabilities are irreversible atomic displacements, which are strain activated rather than thermally activated. These displacements generate self-diffusion in excess of that from thermal-activation alone and give rise to the shear-enhanced self-diffusion known to occur in flowing liquids and concentrated suspensions of particles. The magnitude of this enhancement is shown to decrease with increasing temperature and strain rate.



This paper is referenced by
Characterization of deformation defects in metallic glasses and metallic glass composites : from experiment to computer modeling
Y. Shen (2012)
10.1016/j.jnoncrysol.2020.119997
Plastic instabilities and yielding in amorphous solids under pure shear
Bhaskar Sen Gupta (2020)
10.1557/MRS2007.192
Modeling Deformation and Flow of Disordered Materials
J. Barrat (2007)
10.1039/b814962n
What keeps ionic liquids in flow?
Stefan Zahn (2008)
10.1016/j.mechmat.2005.06.020
Intrinsic vulnerabilities to mechanical failure in nanoscale films
P. Shah (2006)
10.1038/srep05733
Composition Effect on Intrinsic Plasticity or Brittleness in Metallic Glasses
Y. Zhao (2014)
10.1016/S0065-2377(01)28003-X
Theory of supercooled liquids and glasses: Energy landscape and statistical geometry perspectives
P. Debenedetti (2001)
10.1103/PHYSREVLETT.96.025506
Generic rugged landscapes under strain and the possibility of rejuvenation in glasses.
Brittany A Isner (2006)
10.1088/1742-5468/2015/02/P02011
Avalanches, loading and finite size effects in 2D amorphous plasticity: results from a finite element model
S. Sandfeld (2014)
10.1016/S0009-2614(03)00168-4
Avalanches and self-organized criticality in simulations of particle piles
C. Rives (2003)
10.1146/ANNUREV.MATSCI.38.060407.130226
Mechanical Behavior of Metallic Glasses: Microscopic Understanding of Strength and Ductility
M. Chen (2008)
Effect of finite temperatures on the elementary mechanisms of plastic deformation in amorphous materials
Joyjit Chattoraj (2011)
10.1063/1.4968834
Enhanced kinetic stability of a bulk metallic glass by high pressure
R. J. Xue (2016)
10.1038/35065704
Supercooled liquids and the glass transition
P. Debenedetti (2001)
10.1016/S0377-0257(00)00103-8
A molecular dynamics study of a short-chain polyethylene melt. I. Steady-state shear
J. Moore (2000)
10.1103/PhysRevLett.123.098003
Oscillatory Instabilities in Frictional Granular Matter.
Joyjit Chattoraj (2019)
10.1140/epje/i2007-10324-y
On the study of local-stress rearrangements during quasi-static plastic shear of a model glass: Do local-stress components contain enough information?
M. Tsamados (2008)
10.1039/B916342E
Stress relaxation in aging soft colloidal glasses
R. Bandyopadhyay (2009)
10.1529/BIOPHYSJ.105.074278
Stretching the immunoglobulin 27 domain of the titin protein: the dynamic energy landscape.
N. Duff (2006)
10.1016/J.PHYSA.2008.02.019
Mass flux of a binary mixture of Maxwell molecules under shear flow
V. Garz'o (2008)
10.1063/1.4800531
Stress-versus temperature-induced structural evolution in metallic glasses
H. Peng (2013)
10.1007/978-94-010-0595-1_36
Energy Landscapes and Amorphous- Amorphous Transitions
D. Lacks (2002)
10.1063/1.4978600
High stored energy of metallic glasses induced by high pressure
C. Wang (2017)
10.1021/MA300431X
How Deformation Enhances Mobility in a Polymer Glass
Y. G. Chung (2012)
10.1063/1.4737664
Atomistic picture of isothermal volume relaxation behavior of atactic polystyrene glass provided by a molecular dynamics simulation.
X. Chen (2012)
10.1007/S10955-005-9015-5
Sum Rules for the Quasi-Static and Visco-Elastic Response of Disordered Solids at Zero Temperature
A. Lemaître (2004)
10.1063/1.1615962
Particle packing in soft- and hard-potential liquids
P. Vieira (2003)
10.1103/PhysRevE.66.061505
Crossover between equilibrium and shear-controlled dynamics in sheared liquids.
L. Angelani (2002)
10.1080/08927020410001709334
Dynamics of Driven Systems from Newtonian to Athermal Limits
D. Lacks (2004)
10.1063/5.0021206
Seeding method for ice nucleation under shear.
A. Goswami (2020)
10.1016/j.ijengsci.2012.03.012
On the critical nature of plastic flow: one and two dimensional models
O. U. Salman (2012)
10.1063/1.3277671
Effect of shear on nanoparticle dispersion in polymer melts: A coarse-grained molecular dynamics study.
V. Kalra (2010)
See more
Semantic Scholar Logo Some data provided by SemanticScholar