232 citations · 444 across the 18 of their papers we have counts for
18 papers
Following the thread: surface and bulk solvent migration in silicone elastomers from local volumetric swelling
Chenzhuo Li, Tom Beyeler, Marc Antonio Chalhoub +1
Poroelastic materials, consisting of a permeable solid matrix infiltrated with fluid, are ubiquitous in natural and engineering contexts. In poroelastic polymer solids, the elastic…
Impacting spheres: from liquid drops to elastic beads
Saumili Jana, John Kolinski, Detlef Lohse +1
A liquid drop impacting a non-wetting rigid substrate laterally spreads, then retracts, and finally jumps off again. An elastic solid, by contrast, undergoes a slight deformation,…
Falling through the cracks: energy storage along segmented brittle crack fronts
Xinyue Wei, John M. Kolinski
During brittle crack propagation, a smooth crack front curve frequently becomes disjoint, generating a stepped crack and a material ligament that unites the newly formed crack fron…
Drops can Perpetually Bounce over a Vibrating Wettable Solid
Lebo Molefe, Tomas Fullana, François Gallaire +1
On the surface of a vibrating liquid bath, instead of coalescing, a drop will continually bounce on a thin film of air between the drop and the free surface, giving rise to rich ch…
Marangoni-driven flow instability accelerates liquid-solid contact on atomically smooth mica
Octave Castanedo, John M. Kolinski
A droplet falling toward a solid surface displaces the surrounding air until it encounters a defect, and contact nucleates. On atomically smooth surfaces devoid of defects, contact…
Coating thickness prediction for a viscous film on a rough plate
Lebo Molefe, Giuseppe A. Zampogna, John M. Kolinski +1
Surface roughness significantly modifies the liquid film thickness entrained when dip coating a solid surface, particularly at low coating velocity. Using a homogenization approach…
3D characterization of kinematic fields and poroelastic swelling near the tip of a propagating crack in a hydrogel
Chenzhuo Li, Danila Zubko, Damien Delespaul +1
In fracture mechanics, polyacrylamide hydrogels have been widely used as a model material for experiments, benefited from its optical transparency, fracture brittleness, and low Ra…
Fluid-mediated impact of soft solids
Jacopo Bilotto, John Martin Kolinski, Brice Lecampion +3
A viscous, lubrication-like response can be triggered in a thin film of fluid squeezed between a rigid and flat surface and the tip of an incoming projectile. We develop a comprehe…
Elastocapillary menisci mediate interaction of neighboring structures at the surface of a compliant solid
Lebo Molefe, John Kolinski
Surface stress drives long-range elastocapillary interactions at the surface of compliant solids, where it has been observed to mediate interparticle interactions and to alter the…
The characteristic rupture height of the mediating air film beneath an impacting drop on atomically smooth mica
Ramin Kaviani, John M. Kolinski
Before a droplet can contact a surface during impact, it must first displace the air beneath it. Over a wide range of impact velocities, the air is compressed into a thin film, slo…
Crack tip kinematics reveal the cohesive zone structure in brittle hydrogel fracture
Chenzhuo Li, Xinyue Wei, Meng Wang +2
When brittle hydrogels fail, several mechanisms conspire to alter the state of stress near the tip of a crack, and it is challenging to identify which mechanism is dominant. In the…
How hidden 3D structure within crack fronts reveals energy balance
Meng Wang, Mokhtar Adda-Bedia, John M. Kolinski +1
Griffith's energetic criterion, or `energy balance', has for a century formed the basis for fracture mechanics; the energy flowing into a crack front is precisely balanced by the d…
Superspreading events suggest aerosol transmission of SARS-CoV-2 by accumulation in enclosed spaces
John M. Kolinski, Tobias M. Schneider
Viral transmission pathways have profound implications for public safety; it is thus imperative to establish a complete understanding of viable infectious avenues. Mounting evidenc…
How moving cracks in brittle solids choose their path
Lital Rozen-Levy, John M. Kolinski, Gil Cohen +1
While we fundamentally understand the dynamics of 'simple' cracks propagating in brittle solids within perfect (homogeneous) materials, we do not understand how paths of moving cra…
Virtual Frame Technique: Ultrafast Imaging with Any Camera
Sam Dillavou, Shmuel M Rubinstein, John M Kolinski
Many phenomena of interest in nature and industry occur rapidly and are difficult and cost-prohibitive to visualize properly without specialized cameras. Here we describe in detail…
How super-tough gels break
Itamar Kolvin, John M. Kolinski, Jian Ping Gong +1
Fracture of highly stretched materials challenges our view of how things break. We directly visualize rupture of tough double-network (DN) gels at >50\% strain. During fracture, cr…
Skating on a Film of Air: Drops Impacting on a Surface
John M. Kolinski, Shmuel M. Rubinstein, Shreyas Mandre +3
Drops impacting on a surface are ubiquitous in our everyday experience. This impact is understood within a commonly accepted hydrodynamic picture: it is initiated by a rapid shock…
The Shape and Motion of a Ruck in a Rug
J. Kolinski, P. Aussillous, L. Mahadevan
The motion of a ruck in a rug is used as an analogy to explain the role of dislocations in the deformation of crystalline solids. We take the analogy literally and study the shape…