176 citations · 287 across the 14 of their papers we have counts for
14 papers
Origin of Persistent Boundary Motion in Confined Active Matter
Elsa Baby, Manoj Gopalakrishnan, Vishwas V. Vasisht
Active matter systems under confinement display persistent surface motion and a strong boundary affinity. However, despite extensive studies of their positional dynamics, much less…
Breakdown of the Stokes-Einstein relation in Stillinger-Weber Silicon
Himani Rautela, Shiladitya Sengupta, Vishwas V. Vasisht
We investigate the dynamical properties of liquid and supercooled liquid silicon, modeled using the Stillinger-Weber (SW) potential, to examine the validity of the Stokes-Einstein…
Curvature dependent dynamics of a bacterium confined in a giant unilamellar vesicle
Olivia Vincent, Aparna Sreekumari, Manoj Gopalakrishnan +2
We investigate the positional behavior of a single bacterium confined within a vesicle by measuring the probability of locating the bacterium at a certain distance from the vesicle…
Memory of shear flow in soft jammed materials
H. A. Vinutha, Manon Marchand, Marco Caggioni +3
Cessation of flow in simple yield stress fluids results in a complex stress relaxation process that depends on the preceding flow conditions and leads to finite residual stresses.…
Yielding in amorphous solids reveals an age-dependent intrinsic lengthscale
Aparna Sreekumari, Monoj Adhikari, Nandlal Pingua +5
Understanding how amorphous solids yield under shear is central to predicting material failure, yet prescribing reliable local yielding criteria remains a fundamental challenge. He…
Prestressed elasticity of amorphous solids
Shang Zhang, Ethan Stanifer, Vishwas Vasisht +3
Prestress in amorphous solids bears the memory of their formation, and plays a profound role in their mechanical properties, from stiffening or softening elastic moduli to shifting…
Thermodynamics and kinetics of crystallisation in deeply supercooled Stillinger-Weber silicon
Yagyik Goswami, Vishwas V. Vasisht, Daan Frenkel +2
We study the kinetics of crystallization in deeply supercooled liquid silicon employing computer simulations and the Stillinger-Weber three body potential. The free energy barriers…
Liquid-Liquid Phase Transition in Supercooled Silicon
Vishwas V. Vasisht, Srikanth Sastry
We present a review on the study of metastable silicon, primarily focusing mainly on the aspects of liquid-liquid transition, critical point and phase behaviour, structural and dyn…
Residual stress in athermal soft disordered solids: insights from microscopic and mesoscale models
Vishwas V. Vasisht, Pinaki Chaudhuri, Kirsten Martens
In soft amorphous materials, shear cessation after large shear deformation leads to structures having residual shear stress. The origin of these states and the distribution of the…
A computational study of transient shear banding in soft jammed solids
Vishwas V. Vasisht, Emanuela Del Gado
We have designed 3D numerical simulations of a soft spheres model, with size polidispersity and in athermal conditions, to study the transient shear banding that occurs during yiel…
Permanent shear localization in dense disordered materials due to microscopic inertia
Vishwas V Vasisht, Magali Le Goff, Kirsten Martens +1
In this work we develop a theoretical framework for the localization of flow in the steadily flowing regime of sheared disordered solids with inertial dynamics on a microscopic sca…
Emergence and persistence of flow inhomogeneities in the yielding and fluidization of dense soft solids
Vishwas V. Vasisht, Gabrielle Roberts, Emanuela Del Gado
The response to shear of the dense soft solids features a stress overshoot and a persistent shear banding before reaching a homogeneously flowing state. In 3D large scale simulatio…
Making soft solids flow: microscopic bursts and conga lines in jammed emulsions
Vishwas V. Vasisht, S. K. Dutta, Emanuela Del Gado +1
It is well known that jammed soft materials will flow if sheared above their yield stress - think mayonnaise spread on bread - but a complete microscopic description of this seemin…
Liquid-liquid critical point in supercooled silicon
Vishwas V Vasisht, Shibu Saw, Srikanth Sastry
A novel liquid-liquid phase transition has been proposed and investigated in a wide variety of pure substances recently, including water, silica and silicon. From computer simulati…