Continuum modeling of shear startup in soft glassy materials

R Benzi, T Divoux, C Barentin, S Manneville… - Physical Review E, 2021 - APS
Yield stress fluids (YSFs) display a dual nature highlighted by the existence of a critical
stress σ y such that YSFs are solid for stresses σ imposed below σ y, whereas they flow like …

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 …

Statistical thermodynamics of strain hardening in polycrystalline solids

JS Langer - Physical Review E, 2015 - APS
This paper starts with a systematic rederivation of the statistical thermodynamic equations of
motion for dislocation-mediated plasticity proposed in 2010 by Langer, Bouchbinder, and …

Chaotic dynamics in shear-band-mediated plasticity of metallic glasses

B Sun, L Yu, G Wang, X Tong, C Geng, J Wang, J Ren… - Physical Review B, 2020 - APS
The chaotic dynamics describes how a small change of initial conditions can result in a large
difference in a deterministic nonlinear system, ie, the “butterfly effect.” Through 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 …

Mean-field scenario for the athermal creep dynamics of yield-stress fluids

C Liu, K Martens, JL Barrat - Physical Review Letters, 2018 - APS
We develop a theoretical description based on an existent mean-field model for the transient
dynamics prior to the steady flow of yielding materials. The mean-field model not only …

Metastability at the yield-stress transition in soft glasses

M Lulli, R Benzi, M Sbragaglia - Physical Review X, 2018 - APS
We study the solid-to-liquid transition in a two-dimensional fully periodic soft-glassy model
with an imposed spatially heterogeneous stress. The model we consider consists of droplets …

Universal features of amorphous plasticity

Z Budrikis, DF Castellanos, S Sandfeld, M Zaiser… - Nature …, 2017 - nature.com
Plastic yielding of amorphous solids occurs by power-law distributed deformation
avalanches whose universality is still debated. Experiments and molecular dynamics …

Crossover from stochastic activation to cooperative motions of shear transformation zones in metallic glasses

W Jiao, BA Sun, P Wen, HY Bai, QP Kong… - Applied Physics …, 2013 - pubs.aip.org
We observe that the stress relaxation of metallic glasses below glass transition temperatures
presents a universal double power-law decay behavior, indicating that relaxation dynamics …

Driving rate dependence of avalanche statistics and shapes at the yielding transition

C Liu, EE Ferrero, F Puosi, JL Barrat, K Martens - Physical review letters, 2016 - APS
We study stress time series caused by plastic avalanches in athermally sheared disordered
materials. Using particle-based simulations and a mesoscopic elastoplastic model, we …