activity
20172026
most citedPlasticity in amorphous solids is mediated by topological defects in the displacement field

91 citations · 242 across the 17 of their papers we have counts for

collaborators

17 papers

cond-mat.dis-nn2026

The Physics of Topological Defects in Glasses

Arabinda Bera, Peter Schall, Timothy W. Sirk +2

Topological defects play a central role in the mechanical behavior of crystalline materials, yet their relevance to amorphous solids has only recently begun to emerge. Over the las…

cond-mat.mtrl-sci2026

Universal inverse-cube thickness scaling of projectile penetration energy in ultrathin films

Alessio Zaccone, Tim W. Sirk

Ultrathin films of widely different materials exhibit a dramatic enhancement of projectile penetration resistance under high--velocity impact. Despite extensive simulations and exp…

cond-mat.soft2025

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…

cond-mat.soft2025

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,…

cond-mat.soft2025★ 4 cited

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…

cond-mat.soft2024★ 2 cited

Geometric indicators of local plasticity in glasses measured by scanning small-beam diffraction

Amelia C. Y. Liu, Huyen Pham, Arabinda Bera +7

The notion of defects in crystalline phases of matter has been extremely powerful for understanding crystal growth, deformation and melting. Many of these discontinuities in the pe…