29 citations · 169 across the 26 of their papers we have counts for
6 papers · 1 filter
Atomistic Framework for Glassy Polymer Viscoelasticity Across Twenty Frequency Decades
Ankit Singh, Vinay Vaibhav, Caterina Czibula +6
Glassy polymers are central to engineering applications, yet their viscoelastic response over broad frequency and temperature ranges remains difficult to characterize. We extend no…
Microscopic origin of shear bands in 2D amorphous solids from topological defects
Arabinda Bera, Debjyoti Majumdar, Timothy W. Sirk +2
The formation of shear bands in amorphous solids such as glasses has remained an open question in our understanding of condensed matter and amorphous materials. Unlike in crystals,…
General Two-Parameter Model of Alpha-Relaxation in Glasses
Valeriy V. Ginzburg, Oleg Gendelman, Riccardo Casalini +1
In the vicinity of the glass transition, the characteristic relaxation time (e.g., the alpha-relaxation time in dielectric spectroscopy) of a glass-former exhibits a strongly super…
Burgers rings as topological signatures of Eshelby-like plastic events in glasses
Arabinda Bera, Ido Regev, Alessio Zaccone +1
Eshelby-like quadrupolar structures serve as the fundamental microscopic units for characterizing plastic instabilities in amorphous solids and play a crucial role in explaining th…
Viscosity of polymer melts using non-affine theory based on vibrational modes
Ankit Singh, Vinay Vaibhav, Alessio Zaccone
Viscosity, a fundamental transport and rheological property of liquids, quantifies the resistance to relative motion between molecular layers and plays a critical role in understan…
New Insights into the Dependence of Glass Transition Temperature and Dynamic Fragility on Molecular Weight in Oligomers and Polymers
Valeriy V. Ginzburg, Oleg V. Gendelman, Riccardo Casalini +1
In an earlier preprint (V. V. Ginzburg, O. V. Gendelman, R. Casalini, and A. Zaccone, arxiv:2409.17291), we demonstrated that the dynamic (relaxation time) and volume equations of…