302 citations · 1.5k across the 20 of their papers we have counts for
16 papers · 1 filter
Interplay of gross and fine structures in strongly-curved sheets
Mengfei He, Vincent Démery, Joseph D. Paulsen
Although thin films are typically manufactured in planar sheets or rolls, they are often forced into three-dimensional shapes, producing a plethora of structures across multiple le…
Propagating irreversibility fronts in cyclically-sheared suspensions
Jikai Wang, J. M. Schwarz, Joseph D. Paulsen
The interface separating a liquid from its vapor phase is diffuse: the composition varies continuously from one phase to the other over a finite length. Recent experiments on dynam…
Sculpting liquids with ultrathin shells
Yousra Timounay, Alexander R. Hartwell, Mengfei He +4
Thin elastic films can spontaneously attach to liquid interfaces, offering a platform for tailoring their physical, chemical, and optical properties. Current understanding of the e…
Multiperiodic orbits from interacting soft spots in cyclically-sheared amorphous solids
Nathan C. Keim, Joseph D. Paulsen
When an amorphous solid is deformed cyclically, it may reach a steady state in which the paths of constituent particles trace out closed loops that repeat in each driving cycle. A…
Exact solutions for the wrinkle patterns of confined elastic shells
Ian Tobasco, Yousra Timounay, Desislava Todorova +3
Complex textured surfaces occur in nature and industry, from fingerprints to lithography-based micropatterns. Wrinkling by confinement to an incompatible substrate is an attractive…
Mesoscale structure of wrinkle patterns and defect-proliferated liquid crystalline phases
Oleh Tovkach, Junbo Chen, Monica M. Ripp +3
Thin solids often develop elastic instabilities and subsequently complex, multiscale deformation patterns. Revealing the organizing principles of this spatial complexity has ramifi…
Crumples as a generic stress-focusing instability in confined sheets
Yousra Timounay, Raj De, Jessica L. Stelzel +3
Thin elastic solids are easily deformed into a myriad of three-dimensional shapes, which may contain sharp localized structures as in a crumpled candy wrapper, or have smooth and d…
Memory formation in matter
Nathan C. Keim, Joseph D. Paulsen, Zorana Zeravcic +2
Memory formation in matter is a theme of broad intellectual relevance; it sits at the interdisciplinary crossroads of physics, biology, chemistry, and computer science. Memory conn…
Minimal descriptions of cyclic memories
Joseph D Paulsen, Nathan C Keim
Many materials that are out of equilibrium can "learn" one or more inputs that are repeatedly applied. Yet, a common framework for understanding such memories is lacking. Here we c…
Wrapping liquids, solids, and gases in thin sheets
Joseph D. Paulsen
Many objects in nature and industry are wrapped in a thin sheet to enhance their chemical, mechanical, or optical properties. There are similarly a variety of methods for wrapping,…
Geometry underlies the mechanical stiffening and softening of an indented floating film
Monica M. Ripp, Vincent Démery, Teng Zhang +1
A basic paradigm underlying the Hookean mechanics of amorphous, isotropic solids is that small deformations are proportional to the magnitude of external forces. However, slender b…
Hyperuniformity with no fine tuning in sheared sedimenting suspensions
Jikai Wang, J. M. Schwarz, Joseph D. Paulsen
Particle suspensions, present in many natural and industrial settings, typically contain aggregates or other microstructures that can complicate macroscopic flow behaviors and dama…
Geometry-driven folding of a floating annular sheet
Joseph D. Paulsen, Vincent Démery, K. Buğra Toga +4
Predicting the large-amplitude deformations of thin elastic sheets is difficult due to the complications of self-contact, geometric nonlinearities, and a multitude of low-lying ene…
A model for approximately stretched-exponential relaxation with continuously varying stretching exponents
Joseph D. Paulsen, Sidney R. Nagel
Relaxation in glasses is often approximated by a stretched-exponential form: . Here, we show that the relaxation in a model of sheared non-Brownian suspen…
Multiple transient memories in experiments on sheared non-Brownian suspensions
Joseph D. Paulsen, Nathan C. Keim, Sidney R. Nagel
A system with multiple transient memories can remember a set of inputs but subsequently forgets almost all of them, even as they are continually applied. If noise is added, the sys…
Multiple transient memories in sheared suspensions: robustness, structure, and routes to plasticity
Nathan C. Keim, Joseph D. Paulsen, Sidney R. Nagel
Multiple transient memories, originally discovered in charge-density-wave conductors, are a remarkable and initially counterintuitive example of how a system can store information…