Brittle yielding of amorphous solids at finite shear rates

M Singh, M Ozawa, L Berthier - Physical Review Materials, 2020 - APS
Amorphous solids display a ductile to brittle transition as the kinetic stability of the quiescent
glass is increased, which leads to a material failure controlled by the sudden emergence of …

Yielding, shear banding, and brittle failure of amorphous materials

J Pollard, SM Fielding - Physical Review Research, 2022 - APS
Widespread processes in nature and technology are governed by the dynamical transition
whereby a material in an initially solid-like state, whether soft or hard, then yields. Major …

Ductile and brittle yielding in thermal and athermal amorphous materials

HJ Barlow, JO Cochran, SM Fielding - Physical Review Letters, 2020 - APS
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 …

Glass stability changes the nature of yielding under oscillatory shear

WT Yeh, M Ozawa, K Miyazaki, T Kawasaki, L Berthier - Physical review letters, 2020 - APS
We perform molecular dynamics simulations to investigate the effect of a glass preparation
on its yielding transition under oscillatory shear. We use swap Monte Carlo to investigate a …

Elastoplastic description of sudden failure in athermal amorphous materials during quasistatic loading

M Popović, TWJ de Geus, M Wyart - Physical Review E, 2018 - APS
The response of amorphous materials to an applied strain can be continuous or instead
discontinuous if the initial configuration is very stable. We study theoretically how such a …

The yielding transition in amorphous solids under oscillatory shear deformation

P Leishangthem, ADS Parmar, S Sastry - Nature communications, 2017 - nature.com
Amorphous solids are ubiquitous among natural and man-made materials. Often used as
structural materials for their attractive mechanical properties, their utility depends critically on …

Random critical point separates brittle and ductile yielding transitions in amorphous materials

M Ozawa, L Berthier, G Biroli… - Proceedings of the …, 2018 - National Acad Sciences
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 …

Metastability as a mechanism for yielding in amorphous solids under cyclic shear

M Mungan, S Sastry - Physical review letters, 2021 - APS
We consider the yielding behavior of amorphous solids under cyclic shear deformation and
show that it can be mapped into a random walk in a confining potential with an absorbing …

Amorphous systems in athermal, quasistatic shear

CE Maloney, A Lemaitre - Physical Review E—Statistical, Nonlinear, and Soft …, 2006 - APS
We present results on a series of two-dimensional atomistic computer simulations of
amorphous systems subjected to simple shear in the athermal, quasistatic limit. The …

The role of annealing in determining the yielding behavior of glasses under cyclic shear deformation

H Bhaumik, G Foffi, S Sastry - Proceedings of the National …, 2021 - National Acad Sciences
Yielding behavior in amorphous solids has been investigated in computer simulations using
uniform and cyclic shear deformation. Recent results characterize yielding as a …