Random critical point separates brittle and ductile yielding transitions in amorphous materials
We combine an analytically solvable mean-field elasto-plastic model with molecular
dynamics simulations of a generic glass former to demonstrate that, depending on their …
dynamics simulations of a generic glass former to demonstrate that, depending on their …
[HTML][HTML] Low-energy quasilocalized excitations in structural glasses
E Lerner, E Bouchbinder - The Journal of chemical physics, 2021 - pubs.aip.org
Glassy solids exhibit a wide variety of generic thermomechanical properties, ranging from
universal anomalous specific heat at cryogenic temperatures to nonlinear plastic yielding …
universal anomalous specific heat at cryogenic temperatures to nonlinear plastic yielding …
Scaling description of dynamical heterogeneity and avalanches of relaxation in glass-forming liquids
We provide a theoretical description of dynamical heterogeneities in glass-forming liquids,
based on the premise that relaxation occurs via local rearrangements coupled by elasticity …
based on the premise that relaxation occurs via local rearrangements coupled by elasticity …
Pinching a glass reveals key properties of its soft spots
C Rainone, E Bouchbinder… - Proceedings of the …, 2020 - National Acad Sciences
It is now well established that glasses feature quasilocalized nonphononic excitations—
coined “soft spots”—, which follow a universal ω 4 density of states in the limit of low …
coined “soft spots”—, which follow a universal ω 4 density of states in the limit of low …
Elasticity, facilitation, and dynamic heterogeneity in glass-forming liquids
We study the role of elasticity-induced facilitation on the dynamics of glass-forming liquids by
a coarse-grained two-dimensional model in which local relaxation events, taking place by …
a coarse-grained two-dimensional model in which local relaxation events, taking place by …
[PDF][PDF] Elasto-plastic behavior of amorphous materials: a brief review
A Tanguy - Comptes Rendus. Physique, 2021 - comptes-rendus.academie-sciences …
Disordered materials, like metallic glasses or silicate glasses, have an atomistic amorphous
structure preventing the formation of extended defects such as dislocations. Irreversible …
structure preventing the formation of extended defects such as dislocations. Irreversible …
A direct link between active matter and sheared granular systems
The similarity in mechanical properties of dense active matter and sheared amorphous
solids has been noted in recent years without a rigorous examination of the underlying …
solids has been noted in recent years without a rigorous examination of the underlying …
Ductile and brittle yielding in thermal and athermal amorphous materials
We study theoretically the yielding of sheared amorphous materials as a function of
increasing levels of initial sample annealing prior to shear, in three widely used constitutive …
increasing levels of initial sample annealing prior to shear, in three widely used constitutive …
The role of annealing in determining the yielding behavior of glasses under cyclic shear deformation
Yielding behavior in amorphous solids has been investigated in computer simulations using
uniform and cyclic shear deformation. Recent results characterize yielding as a …
uniform and cyclic shear deformation. Recent results characterize yielding as a …
Strain localization above the yielding point in cyclically deformed glasses
ADS Parmar, S Kumar, S Sastry - Physical Review X, 2019 - APS
We study the yielding behavior of a model glass under cyclic athermal quasistatic
deformation and at finite rate and temperature, computationally, and show that yielding is …
deformation and at finite rate and temperature, computationally, and show that yielding is …