Highlights•Recent frictional measurements with commercial and homebuilt soft-solid
tribometers have led to new tribology perspectives.•Molecular-scale surface and lubricant …

We experimentally investigated the system of a simply supported beam immersed in a
granular medium, which displays jump and new peaks in its amplitude-frequency curve …

Granular packings display a wealth of mechanical features that are of widespread
significance. One of these features is creep: the slow deformation under applied stress …

Food oral processing is a study of mastication that involves food-saliva interaction.
Instrumental approaches have improved sensorial attributes like texture by stimulating the …

Rolling ball bearings are widely known and applied to decrease friction between two
surfaces. More recently, hydrogel–hydrogel tribopairs have also revealed good but rather …

Hydrogels display extremely complex frictional behavior with surprisingly slippery surfaces.
We measure the sliding behavior of hydrogels submerged in water using a custom-made …

Hydrogels can be easily modified to have a particular surface roughness. This modularity in
hydrogels is an important feature, as roughness affects friction. Here, we systematically vary …

Despite extensive studies on either smooth granular-fluid flow or the solidlike deformation at
the slow limit, the change between these two extremes remains largely unexplored. By …

We use numerical simulations to study the flow of a bidisperse mixture of athermal,
frictionless, soft-core two-dimensional spherocylinders driven by a uniform steady-state …

Understanding intermittency, a ubiquitous behavior in flows of packed grains, is pivotal for
establishing the rheology of granular matter. A straightforward explanation has been missing …