44 citations · 128 across the 12 of their papers we have counts for
6 papers · 1 filter
Dynamic fragmentation of residually stressed solids: From microscopic instabilities to universal scaling
Vineet Dawara, Koushik Viswanathan
The dynamic fragmentation of residually stressed solids involves a complex interplay between stored elastic energy, stress wave propagation, and crack instabilities. In this work,…
Fifty years of Schallamach waves: From rubber friction to nanoscale fracture
Koushik Viswanathan, Srinivasan Chandrasekar
The question of how soft polymers slide against hard surfaces is of significant scientific interest, given its practical implications. Specifically, such sytems commonly show inter…
Of fiery sparks & glittering spots: Melting-resolidification and spherical particle formation in abrasion
Harish Singh Dhami, Priti Ranjan Panda, Koushik Viswanathan
The curious occurrence of perfectly spherical particles when a steel substrate is slid against a hard abrasive was first observed and documented by Robert Hooke in the 17 ce…
Opposite moving detachment waves mediate stick-slip friction at soft interfaces
Mohammad Aaquib Ansari, Koushik Viswanathan
Intermittent motion, called stick--slip, is a friction instability that commonly occurs during relative sliding of two elastic solids. In adhesive polymer contacts, where elasticit…
Distinct stick-slip modes in adhesive polymer interfaces
Koushik Viswanathan, Narayan K. Sundaram
Stick-slip, manifest as intermittent tangential motion between two solids, is a well-known friction instability that occurs in a number of natural and engineering systems. In the c…
Kinematic flow patterns in slow deformation of a dense granular material
Koushik Viswanathan, Anirban Mahato, Tejas G. Murthy +2
The kinematic flow pattern in slow deformation of a model dense granular medium is studied at high resolution using \emph{in situ} imaging, coupled with particle tracking. The defo…