6 papers
Microscopic Nonaffine Deformation Theory of LAOS in Polymers
Dario Nichetti, Alessio Zaccone
We develop a molecularly motivated framework connecting large-amplitude oscillatory shear (LAOS) nonlinearities in entangled polymers to frequency-dependent nonaffine relaxation in…
Predicting the Brittle-to-Ductile Transition in Amorphous Polymers
Valeriy V. Ginzburg, Oleg Gendelman, Alessio Zaccone
Brittle-ductile transition (BDT) is an important characteristic of amorphous (and semicrystalline) polymers. For a given strain rate, at temperatures above BDT, the polymers exhibi…
Modeling the Slow Arrhenius Process (SAP) in Polymers
Valeriy V. Ginzburg, Oleg V. Gendelman, Simone Napolitano +2
Amorphous glass-forming polymers exhibit multiple relaxation processes, including the structural α-relaxation associated with the glass transition and faster secondary relaxations…
Ultrastable 2D glasses and packings explained by local centrosymmetry
A. Zaccone
Using the most recent numerical data by Bolton-Lum \emph{et al.} [Phys. Rev. Lett. 136, 058201 (2026)], we demonstrate that ideal ultrastable glasses in the athermal limit (or ultr…
Grain volume distribution alters the critical phenomena in complex granular systems
Teng Man, Yimin Lu, Zhongrong Wang +3
The grain size distribution (GSD) plays an important role in the mechanical properties of amorphous disordered systems and complex granular materials. Varying GSD causes segregatio…
Ionic glass formers show an inverted relation between fragility and relaxation broadness
Sophie G. M. van Lange, Diane W. te Brake, Eline F. Brink +7
Supercooled liquids undergo a rapid change in dynamics as they are cooled to their glass transition temperature and turn from a flowing liquid into an amorphous solid. Depending on…