Works (112)
Updated: November 19th, 2024 08:00
2024 article
Soft matter physics of the ground beneath our feet
Voigtlaender, A., Houssais, M., Bacik, K. A., Bourg, I. C., Burton, J. C., Daniels, K. E., … Yang, J. Q. (2024, July 16). SOFT MATTER.
open access via doi.org (publisher)
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation
(Web of Science)
Sources: ORCID, Web Of Science
Added: July 22, 2024
2024 journal article
The Role of Electrochemical Oxidation on the Interfacial Tension of Eutectic Gallium Indium
ACS Electrochemistry.
Source: ORCID
Added: October 25, 2024
2024 article
Using Network Science to Evaluate Vulnerability of Landslides on Big Sur Coast, California, USA
Desai, V. D., Handwerger, A. L., & Daniels, K. E. (2024, August 29).
UN Sustainable Development Goal Categories
14. Life Below Water
(OpenAlex)
Source: ORCID
Added: September 1, 2024
2023 article
Controlling rheology via boundary conditions in dense granular flows
Fazelpour, F., & Daniels, K. E. (2023, February 17). SOFT MATTER.
UN Sustainable Development Goal Categories
11. Sustainable Cities and Communities
(OpenAlex)
Sources: ORCID, Web Of Science
Added: March 4, 2023
2023 dataset
Data from: Controlling rheology via boundary conditions in dense granular flows
Dryad.
Source: ORCID
Added: July 13, 2023
2023 dataset
Data from: Forecasting landslides using community detection on geophysical satellite data
Source: ORCID
Added: July 13, 2023
2023 journal article
Forecasting landslides using community detection on geophysical satellite data
Physical Review E, 108(1).
UN Sustainable Development Goal Categories
13. Climate Action
(Web of Science)
Sources: ORCID, Crossref, Web Of Science, NC State University Libraries
Added: July 7, 2023
2023 article
Interfacial Tension Hysteresis of Eutectic Gallium-Indium
Hillaire, K. D., Nithyanandam, P., Song, M., Nadimi, S. R., Kiani, A., Dickey, M. D., & Daniels, K. E. (2023, December 14). ADVANCED FUNCTIONAL MATERIALS, Vol. 12.
author keywords: interfacial tension; liquid metal; oxidation
Sources: ORCID, Web Of Science, NC State University Libraries
Added: December 15, 2023
2022 dataset
Data from: Gardner-like crossover from variable to persistent force contacts in granular crystals
Dryad.
Source: ORCID
Added: November 16, 2022
2022 journal article
Delicate memory structure of origami switches
Physical Review Research, 4(1).
UN Sustainable Development Goal Categories
11. Sustainable Cities and Communities
(Web of Science)
Sources: ORCID, Web Of Science, NC State University Libraries
Added: February 24, 2022
2022 journal article
Gardner-like crossover from variable to persistent force contacts in granular crystals
Physical Review E, 106(5).
Sources: ORCID, Web Of Science, NC State University Libraries
Added: November 21, 2022
2022 report
Gardner-like transition from variable to persistent force contacts in granular crystals
[Preprint].
Source: Crossref
Added: December 19, 2022
2022 journal article
Photoelastic stress response of complex 3D-printed particle shapes
POWDER TECHNOLOGY, 409.
Sources: ORCID, Web Of Science, NC State University Libraries
Added: August 27, 2022
2022 journal article
Stick-Slip Dynamics in a Granular Material With Varying Grain Angularity
Frontiers in Physics, 10.
author keywords: granular materials; stick-slip; grain shape; photoelasticity; grain angularity; dynamics; stress
Sources: Web Of Science, NC State University Libraries
Added: August 15, 2022
2022 journal article
The effect of grain shape and material on the nonlocal rheology of dense granular flows
Soft Matter, 1.
Sources: ORCID, Web Of Science, NC State University Libraries
Added: January 27, 2022
2021 journal article
Interfacial Tension Modulation of Liquid Metal via Electrochemical Oxidation
Advanced Intelligent Systems, 3(8), 2100024.
author keywords: eutectic gallium indium; electrochemical oxidation; gallium; liquid metals; surface tension
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Sources: ORCID, Crossref
Added: May 14, 2021
2021 journal article
Particle dynamics in two-dimensional point-loaded granular media composed of circular or pentagonal grains
EPJ Web of Conferences, 249, 06010.
Ed(s): M. Aguirre, S. Luding, L. Pugnaloni & R. Soto
Sources: Crossref, NC State University Libraries
Added: September 21, 2022
2021 journal article
Probing regolith-covered surfaces in low gravity
EPJ Web of Conferences, 249, 02005.
Ed(s): M. Aguirre, S. Luding, L. Pugnaloni & R. Soto
Sources: Crossref, NC State University Libraries
Added: September 21, 2022
2021 journal article
Spongelike Rigid Structures in Frictional Granular Packings
Physical Review Letters, 126(7).
TL;DR:
It is shown how rigidity emerges in experiments on sheared two-dimensional frictional granular materials by using generalizations of two methods for identifying rigid structures, the force-based dynamical matrix and the topology-based rigidity percolation.
(via Semantic Scholar)
Sources: ORCID, Web Of Science, NC State University Libraries
Added: February 23, 2021
2021 journal article
Stick-slip Dynamics in Penetration Experiments on Simulated Regolith
The Planetary Science Journal, 2(6), 243.
Sources: ORCID, Crossref
Added: December 23, 2021
2021 journal article
Stress propagation in locally loaded packings of disks and pentagons
Soft Matter, 10.
Sources: ORCID, Web Of Science, NC State University Libraries
Added: November 3, 2021
2021 journal article
The effect of boundary roughness on dense granular flows
EPJ Web of Conferences, 249, 03014.
Ed(s): M. Aguirre, S. Luding, L. Pugnaloni & R. Soto
Source: Crossref
Added: August 25, 2023
2020 journal article
Analysis of Self-Organized Patterned Surface Oxide Spots on Ejected Spatter Produced during Laser Powder Bed Fusion
Additive Manufacturing, 35, 101320.
UN Sustainable Development Goal Categories
9. Industry, Innovation and Infrastructure
(Web of Science)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: October 26, 2020
2020 journal article
Gradient-induced droplet motion over soft solids
IMA Journal of Applied Mathematics, 85(3), 495–512.
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation
(Web of Science)
7. Affordable and Clean Energy
(OpenAlex)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: June 22, 2020
2020 journal article
TL;DR:
Two knitting patterns for scarves are presented to illustrate how ripples can arise through adding stitches to the material as it is created.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
14. Life Below Water
(OpenAlex)
Sources: ORCID, Crossref
Added: May 16, 2020
2020 journal article
Overcoming Rayleigh–Plateau instabilities: Stabilizing and destabilizing liquid-metal streams via electrochemical oxidation
Proceedings of the National Academy of Sciences, 117(32), 19026–19032.
author keywords: liquid metal; Rayleigh instabilities; EGaIn; jetting; jets
TL;DR:
Electrochemical anodization significantly lowers the effective tension of a stream of metal, transitioning it from droplets to long (long lifetime and length) wires with 100-μm diameters without the need for high velocities.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Sources: ORCID, Crossref
Added: July 30, 2020
2019 journal article
A Dual-Species Biofilm with Emergent Mechanical and Protective Properties
Journal of Bacteriology, 201(18).
Ed(s): G. O'Toole
MeSH headings : Bacillus subtilis / metabolism; Bacterial Proteins / metabolism; Biofilms / growth & development; Extracellular Matrix / metabolism; Extracellular Matrix / physiology; Pantoea / metabolism
TL;DR:
It is determined that both bacteria contribute structural elements to the coculture, which is reflected in its overall viscoelastic behavior, and that partitioning into distinct regions negatively affected the survival of P. agglomerans while also serving as a protective mechanism in the presence of antibiotic stress.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
15. Life on Land
(OpenAlex)
Sources: ORCID, Crossref, NC State University Libraries
Added: August 13, 2019
2019 journal article
Distinguishing deformation mechanisms in elastocapillary experiments
Soft Matter, 15(46), 9426–9436.
TL;DR:
This paper derives a model capable of explaining the observed data and uses it to determine the force law at the three-phase contact line, and shows that the measured forces are consistent with the expected Young-Dupré equation.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation
(Web of Science)
Sources: ORCID, Crossref
Added: November 20, 2019
2019 journal article
Dynamics of a grain-scale intruder in a two-dimensional granular medium with and without basal friction
Physical Review E, 100(3).
TL;DR:
The results indicate the qualitative importance of basal friction at high packing fractions and suggest a possible connection between intruder dynamics in a static material and clogging dynamics in granular flows.
(via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: October 14, 2019
2019 journal article
Enlightening force chains: a review of photoelasticimetry in granular matter
Granular Matter, 21(4).
Sources: Web Of Science, NC State University Libraries
Added: September 9, 2019
2019 journal article
Force fluctuations at the transition from quasi-static to inertial granular flow
Soft Matter, 15(42), 8532–8542.
TL;DR:
The rheology of gravity-driven, dry granular flows is analysed in experiments where individual forces within the flow bulk are measured and rearrangements of the force network extending into the quasi-static layer where shear rates vanish are observed.
(via Semantic Scholar)
Sources: ORCID, Crossref
Added: October 29, 2019
2019 journal article
Forecasting failure locations in 2-dimensional disordered lattices
Proceedings of the National Academy of Sciences, 116(34), 16742–16749.
author keywords: failure; lattices; networks; centrality
TL;DR:
It is shown that a simple test that consists of comparing the importance of a beam with respect to the other beams in a lattice permits a successful forecast of the locations of failures, and that one can assess possible failure locations of a structure without needing to study its detailed energetic states.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
11. Sustainable Cities and Communities
(Web of Science; OpenAlex)
Sources: ORCID, Crossref
Added: August 4, 2019
2019 journal article
Protocol Dependence and State Variables in the Force-Moment Ensemble
Physical Review Letters, 122(3).
TL;DR:
From the interparticle forces, it is found that the distributions of the normal component of the coarse-grained force-moment tensor are exponential tailed, while the deviatoric component is Gaussian distributed, which implies that the correct stress-based statistical mechanics conserves both the force- Moment tensor and the Maxwell-Cremona force-tiling area.
(via Semantic Scholar)
Sources: ORCID, Crossref
Added: January 30, 2019
2019 journal article
Rigidity percolation control of the brittle-ductile transition in disordered networks
Physical Review Materials, 3(7).
UN Sustainable Development Goal Categories
11. Sustainable Cities and Communities
(Web of Science)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 5, 2019
2019 journal article
Viewing Earth’s surface as a soft-matter landscape
Nature Reviews Physics, 1(12), 716–730.
Sources: ORCID, Crossref
Added: October 17, 2019
2018 journal article
Betweenness centrality as predictor for forces in granular packings
Soft Matter, 15(8), 1793–1798.
TL;DR:
It is found that total pressure on each particle in the system correlates to its betweenness centrality value extracted from the geometric contact network, and the mesoscale network structure is a key control on individual particle pressures.
(via Semantic Scholar)
Sources: ORCID, Crossref
Added: January 29, 2019
2018 journal article
Network analysis of particles and grains
Journal of Complex Networks, 6(4), 485–565.
TL;DR:
Network-based approaches to studying granular materials (and particulate matter more generally) are reviewed and the potential of such frameworks to provide a useful description of these materials is explored to enhance understanding of the underlying physics is explored.
(via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: October 29, 2018
2018 journal article
Nonlocal rheology of dense granular flow in annular shear experiments
Soft Matter, 14(16), 3040–3048.
TL;DR:
The authors' measurements confirm the prediction that there is a growing lengthscale at a finite value μs, associated with a frictional yield criterion and identify the physical mechanism behind this transition at μs by observing that it corresponds to a drop in the susceptibility to force chain fluctuations.
(via Semantic Scholar)
Sources: Web Of Science, ORCID, NC State University Libraries, Crossref
Added: August 6, 2018
2018 journal article
Sounds of Failure: Passive Acoustic Measurements of Excited Vibrational Modes
PHYSICAL REVIEW LETTERS, 120(21).
TL;DR:
Experiments on sheared granular materials are reported in which the evolving density of excited modes are monitored via passive monitoring of acoustic emissions, providing a new interpretation of the changing state of the material on its approach to stick-slip failure.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
11. Sustainable Cities and Communities
(OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018
2018 journal article
Symmetry-reversals in chiral active matter
SOFT MATTER, 14(27), 5572–5580.
TL;DR:
The findings highlight the important role of both the type of driving and the interparticle interactions (here, geometric friction) in controlling the collective behavior of active granular systems.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018
2017 journal article
An experimental investigation of the force network ensemble
EPJ Web of Conferences, 140, 02024.
Ed(s): F. Radjai, S. Nezamabadi, S. Luding & J. Delenne
TL;DR:
An experiment in which a horizontal quasi-2D granular system with a fixed neighbor network is cyclically compressed and decompressed over 1000 cycles, and several statistical properties of the packing are characterized, including the probability density function of the contact force.
(via Semantic Scholar)
Sources: Crossref, NC State University Libraries
Added: February 6, 2020
2017 journal article
Capillary fracture of ultrasoft gels: variability and delayed nucleation
SOFT MATTER, 13(16), 2962–2966.
TL;DR:
The experimental protocol provides a new technique for probing the energy landscape and fracture toughness of ultrasoft materials through measurement of the delay time distribution, consistent with a thermally-activated process.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation
(Web of Science)
7. Affordable and Clean Energy
(OpenAlex)
11. Sustainable Cities and Communities
(Web of Science)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018
2017 journal article
Deformation of an elastic substrate due to a resting sessile droplet
European Journal of Applied Mathematics, 29(2), 281–300.
author keywords: PDEs in Connection with Mechanics of Deformable Solids; Transform Methods; Classical Linear Elasticity; Numerical Approximation of Solutions; Fluid-Solid Interactions
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation
(Web of Science)
11. Sustainable Cities and Communities
(Web of Science)
Sources: Web Of Science, ORCID, NC State University Libraries, Crossref
Added: August 6, 2018
2017 journal article
Granular rheology: measuring boundary forces with laser-cut leaf springs
EPJ Web of Conferences, 140, 03035.
Ed(s): F. Radjai, S. Nezamabadi, S. Luding & J. Delenne
Sources: Crossref, NC State University Libraries
Added: February 6, 2020
2017 journal article
Oxidation-Mediated Fingering in Liquid Metals
PHYSICAL REVIEW LETTERS, 119(17).
TL;DR:
It is found that electrochemical oxidation can generate compressive interfacial forces that oppose the tensile forces at a liquid interface, which is important for the development of reconfigurable electronic, electromagnetic, and optical devices that take advantage of the metallic properties of liquid metals.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Sources: Web Of Science, NC State University Libraries, ORCID
Added: August 6, 2018
2017 journal article
Photoelastic force measurements in granular materials
REVIEW OF SCIENTIFIC INSTRUMENTS, 88(5).
TL;DR:
This review paper summarizes the past work using the photoelastic technique, describes the optics underlying the technique, and illustrates how it can be used to quantitatively determine the vector contact forces between particles in a 2D granular system.
(via Semantic Scholar)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018
2017 journal article
Preface: Focus on imaging methods in granular physics
REVIEW OF SCIENTIFIC INSTRUMENTS, 88(5).
TL;DR:
This work presents a meta-simulation of the fluid mechanics of response to E-modulus, and shows clear patterns in the response of E. coli to E.coli.
(via Semantic Scholar)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018
2017 journal article
Publisher’s Note: “Preface: Focus on imaging methods in granular physics” [Rev. Sci. Instrum. 88, 051701 (2017)]
Review of Scientific Instruments, 88(7), 079901.
Sources: Crossref, NC State University Libraries, ORCID
Added: December 26, 2022
2017 journal article
Simulating surfactant spreading: Influence of a physically motivated equation of state
European Journal of Applied Mathematics, 29(1), 30–54.
author keywords: AMS classifications: 35Q35 PDEs in connection with fluid mechanics; 76A20 thin fluid films; 76M12 finite volume methods; 76B45 capillarity (surface tension)
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation
(Web of Science)
11. Sustainable Cities and Communities
(Web of Science)
Sources: Web Of Science, ORCID, NC State University Libraries, Crossref
Added: August 6, 2018
2017 journal article
The role of force networks in granular materials
EPJ Web of Conferences, 140, 01006.
Ed(s): F. Radjai, S. Nezamabadi, S. Luding & J. Delenne
Sources: ORCID, Crossref
Added: January 8, 2019
2016 conference paper
Digging on Asteroids: A Laboratory Model of Granular Dynamics in Microgravity
Earth and Space 2016. Presented at the 15th Biennial ASCE Conference on Engineering, Science, Construction, and Operations in Challenging Environments.
Event: 15th Biennial ASCE Conference on Engineering, Science, Construction, and Operations in Challenging Environments
Sources: Crossref, NC State University Libraries
Added: December 26, 2022
2016 journal article
Evolution of network architecture in a granular material under compression
PHYSICAL REVIEW E, 94(3).
TL;DR:
The results discussed throughout this study suggest that these network science techniques may provide a direct way to compare and classify data from systems under different external conditions or with different physical makeup.
(via Semantic Scholar)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018
2016 journal article
Friction and pressure-dependence of force chain communities in granular materials
GRANULAR MATTER, 18(4).
author keywords: Force chains; Network community structure; Numerical simulations; Friction; Pressure
UN Sustainable Development Goal Categories
11. Sustainable Cities and Communities
(OpenAlex)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018
2016 journal article
High refractive index immersion liquid for superresolution 3D imaging using sapphire-based aplanatic numerical aperture increasing lens optics
APPLIED OPTICS, 55(12), 3165–3169.
TL;DR:
Antimony tribromide (SbBr3) salt dissolved in liquid diiodomethane (CH2I2) provides a new high refractive index immersion liquid for optics applications that enables a sapphire-based aNAIL objective that has both high numerical aperture and long working distance, an improvement over commercially available immersion liquids.
(via Semantic Scholar)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018
2016 journal article
Nonaffine deformation under compression and decompression of a flow-stabilized solid
JOURNAL OF STATISTICAL MECHANICS-THEORY AND EXPERIMENT, 2016(8).
author keywords: Brownian motion; colloidal glasses; elasticity; plasticity
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018
2016 article
Solid capillarity: when and how does surface tension deform soft solids?
SOFT MATTER, Vol. 12, pp. 2993–2996.
TL;DR:
Some recent advances in the growing field of solid capillarity are highlighted and key questions for its advancement are posed.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation
(Web of Science)
11. Sustainable Cities and Communities
(Web of Science)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018
2016 journal article
Spatio-temporal patterns in inclined layer convection
JOURNAL OF FLUID MECHANICS, 794, 719–745.
author keywords: Benard convection; nonlinear dynamical systems; pattern formation
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018
2016 journal article
Topological and geometric measurements of force-chain structure
PHYSICAL REVIEW E, 94(3).
TL;DR:
A trio of related but fundamentally distinct measurements of the mesoscale structure of force chains in two-dimensional packings are discussed, including a statistic derived using tools from algebraic topology, which together provide a tool set for the analysis of force chain architecture.
(via Semantic Scholar)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018
2015 journal article
Erratum: Influence of network topology on sound propagation in granular materials [Phys. Rev. E86, 041306 (2012)]
Physical Review E, 92(3).
Source: ORCID
Added: January 8, 2019
2015 journal article
Extraction of force-chain network architecture in granular materials using community detection
SOFT MATTER, 11(14), 2731–2744.
MeSH headings : Computer Simulation; Models, Chemical
TL;DR:
By resolving individual force chains, this work quantifies statistical properties of force-chain shape and strength, which are potentially crucial diagnostics of bulk properties (including material stability).
(via Semantic Scholar)
UN Sustainable Development Goal Categories
11. Sustainable Cities and Communities
(OpenAlex)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018
2015 journal article
Spatiotemporal measurement of surfactant distribution on gravity-capillary waves
JOURNAL OF FLUID MECHANICS, 777.
author keywords: capillary waves; Faraday waves; waves/free-surface flows
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018
2015 journal article
The Statistical Physics of Athermal Materials
Annual Review of Condensed Matter Physics, 6(1), 63–83.
author keywords: granular materials; statistical physics; athermal
Sources: ORCID, NC State University Libraries, Crossref
Added: January 8, 2019
2014 journal article
Correlations between electrical and mechanical signals during granular stick-slip events
GRANULAR MATTER, 16(2), 217–222.
author keywords: Sheared granular materials; Stick-slip; Electrical charging
UN Sustainable Development Goal Categories
11. Sustainable Cities and Communities
(OpenAlex)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018
2014 journal article
Elastocapillary deformations on partially-wetting substrates: rival contact-line models
Soft Matter, 10(37), 7361.
TL;DR:
A general solution using a displacement potential function for the elastic deformations within a finite elastic substrate associated with these wetting forces, and compares the results to relevant experiments and concludes that the generalization of solid surface tension Σls ≠ Σsg is an essential feature in any model of partial-wetting.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation
(Web of Science)
11. Sustainable Cities and Communities
(Web of Science)
Sources: ORCID, NC State University Libraries, Crossref, NC State University Libraries
Added: August 6, 2018
2014 journal article
Nonlinear elasticity of microsphere heaps
Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics, 90(2), 9.
MeSH headings : Elasticity; Microfluidic Analytical Techniques; Microscopy, Fluorescence; Microspheres; Models, Theoretical; Nonlinear Dynamics
TL;DR:
This analysis indicates that many-body interactions contribute a significant fraction of the stress supported by the heap, and the measured stress-strain curves exhibit a universal nonlinear shape, which can be predicted from a thermal van der Waals equation of state with excluded volume.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
10. Reduced Inequalities
(OpenAlex)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018
2014 journal article
Pushing on a Nonlinear Material
Physics, 7.
Sources: ORCID, Crossref
Added: January 8, 2019
2014 journal article
Self-healing dynamics of surfactant coatings on thin viscous films
Physics of Fluids, 26(4), 042109.
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation
(Web of Science)
11. Sustainable Cities and Communities
(Web of Science)
Sources: Web Of Science, ORCID, NC State University Libraries, Crossref
Added: August 6, 2018
2014 article
Surfactant spreading on a thin liquid film: reconciling models and experiments
Swanson, E. R., Strickland, S. L., Shearer, M., & Daniels, K. E. (2015, October). JOURNAL OF ENGINEERING MATHEMATICS, Vol. 94, pp. 63–79.
author keywords: Experiment; Model; Surfactant; Thin liquid film
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation
(Web of Science)
11. Sustainable Cities and Communities
(Web of Science)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018
2014 conference paper
Video: Spatiotemporal dynamics of surfactant monolayers on Faraday waves
67th Annual Meeting of the APS Division of Fluid Dynamics - Gallery of Fluid Motion.
Source: ORCID
Added: January 8, 2019
2013 journal article
Capillary fracture of soft gels
PHYSICAL REVIEW E, 88(4).
MeSH headings : Gels; Hydrodynamics; Mechanical Phenomena; Surface Tension; Surface-Active Agents / chemistry
TL;DR:
A model for crack initiation by treating the gel as a linear elastic solid and computing the deformations within the substrate from the liquid-solid wetting forces is developed and reveals that the depth of the gel is an important factor in the fracture process, as it can help mitigate large surface tractions.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation
(Web of Science)
11. Sustainable Cities and Communities
(Web of Science)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018
2013 journal article
Equilibrating Temperaturelike Variables in Jammed Granular Subsystems
PHYSICAL REVIEW LETTERS, 110(5).
TL;DR:
By comparing the temperaturelike quantities in both systems, it is found compactivity does not equilibrate between the systems, while the angoricity (conjugate to the stress) does.
(via Semantic Scholar)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018
2013 article
Focus on granular segregation
Daniels, K. E., & Schroeter, M. (2013, March 13). NEW JOURNAL OF PHYSICS, Vol. 15.
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018
2013 journal article
Local properties of patterned vegetation: quantifying endogenous and exogenous effects
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 371(2004), 20120359–20120359.
author keywords: arid ecosystems; pattern formation; Fourier analysis
MeSH headings : Ecosystem; Models, Biological; Plants; Soil; Water
TL;DR:
A Fourier method is developed for locally identifying the pattern wavenumber and orientation from a region of vegetation patterning near Fort Stockton, TX, USA, and it is found that the local pattern wavelength and orientation are typically coherent, but exhibit both rapid and gradual variation driven by changes in hillslope gradient and orientation.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
13. Climate Action
(Web of Science)
15. Life on Land
(Web of Science)
Sources: ORCID, NC State University Libraries, NC State University Libraries
Added: August 6, 2018
2013 chapter
Rubble-Pile Near Earth Objects: Insights from Granular Physics
In Asteroids (pp. 271–286).
Sources: ORCID, Crossref, NC State University Libraries
Added: January 8, 2019
2012 journal article
Acoustic measurement of a granular density of modes
SOFT MATTER, 9(4), 1214–1219.
Contributors: E. Owens n & n
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018
2012 journal article
Equipartition of Rotational and Translational Energy in a Dense Granular Gas
PHYSICAL REVIEW LETTERS, 108(1).
TL;DR:
Experiments quantifying the rotational and translational motion of particles in a dense, driven, 2D granular gas floating on an air table reveal that kinetic energy is divided equally between the two translational and one rotational degrees of freedom.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
16. Peace, Justice and Strong Institutions
(OpenAlex)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018
2012 journal article
Flow-driven formation of solid-like microsphere heaps
SOFT MATTER, 9(2), 543–549.
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018
2012 journal article
Influence of network topology on sound propagation in granular materials
PHYSICAL REVIEW E, 86(4).
TL;DR:
This paper treats granular materials as spatially embedded networks in which the nodes (particles) are connected by weighted edges obtained from contact forces and finds that network diagnostics can be used to probe particle-, curve-, domain-, and system-scale structures in granular media.
(via Semantic Scholar)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018
2012 journal article
Trajectory entanglement in dense granular materials
Journal of Statistical Mechanics-Theory and Experiment, 2012(06), 13.
Contributors: J. Puckett n, F. Lechenault *, n & J. Thiffeault *
author keywords: granular matter; mixing; dynamical heterogeneities (experiment)
Sources: ORCID, NC State University Libraries, NC State University Libraries
Added: August 6, 2018
2011 journal article
Granular Controls on Periodicity of Stick-Slip Events: Kinematics and Force-Chains in an Experimental Fault
PURE AND APPLIED GEOPHYSICS, 168(12), 2239–2257.
UN Sustainable Development Goal Categories
11. Sustainable Cities and Communities
(Web of Science)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018
2011 journal article
Local origins of volume fraction fluctuations in dense granular materials
PHYSICAL REVIEW E, 83(4).
TL;DR:
It is found that both P(s) and P(Φ) encode similar information about the ensemble of observed packings and are connected to each other by the local granocentric model.
(via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018
2011 journal article
Sound propagation and force chains in granular materials
Europhysics Letters, 94(5).
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018
2010 journal article
Equilibration of granular subsystems
SOFT MATTER, 6(13), 3074–3081.
Contributors: F. Lechenault n & n
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018
2010 journal article
Fluorescent visualization of a spreading surfactant
New Journal of Physics, 12(7), 073029.
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation
(Web of Science)
11. Sustainable Cities and Communities
(Web of Science)
Sources: ORCID, NC State University Libraries, NC State University Libraries
Added: August 6, 2018
2010 journal article
Scalar Conservation Laws with Nonconstant Coefficients with Application to Particle Size Segregation in Granular Flow
Journal of Nonlinear Science, 20(6), 689–707.
Contributors: L. May n, M. Shearer n & n
author keywords: Conservation laws; First order partial differential equations; Granular flow; Particle segregation
TL;DR:
A velocity profile is measured from experimental data and initial value problems that mimic the segregation observed in the experiment are solved, thereby verifying the value of the continuum model.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
15. Life on Land
(OpenAlex)
Sources: Web Of Science, ORCID, NC State University Libraries, Crossref
Added: August 6, 2018
2010 journal article
Shear-driven size segregation of granular materials: Modeling and experiment
PHYSICAL REVIEW E, 81(5).
TL;DR:
The Gray-Thornton model of segregation is applied to a granular flow with an exponential shear profile, and the model successfully captures the presence of a fast mixing process and relatively slower resegregation process, but the model predicts a finite resegregation time, while in the experiment resegregation occurs only exponentially in time.
(via Semantic Scholar)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018
2010 journal article
Student Blogging about Physics
The Physics Teacher, 48(6), 366–367.
UN Sustainable Development Goal Categories
4. Quality Education
(OpenAlex)
Sources: ORCID, NC State University Libraries, NC State University Libraries
Added: August 6, 2018
2010 article proceedings
The Gray-Thornton Model of Granular Segregation
Presented at the IUTAM-ISIMM SYMPOSIUM ON MATHEMATICAL MODELING AND PHYSICAL INSTANCES OF GRANULAR FLOWS.
Event: IUTAM-ISIMM SYMPOSIUM ON MATHEMATICAL MODELING AND PHYSICAL INSTANCES OF GRANULAR FLOWS
author keywords: Segregation; granular materials; shock waves; hyperbolic conservation laws
UN Sustainable Development Goal Categories
10. Reduced Inequalities
(OpenAlex)
Sources: ORCID, Crossref, NC State University Libraries
Added: January 8, 2019
2010 journal article
Universal Shapes Formed by Two Interacting Cracks
PHYSICAL REVIEW LETTERS, 105(12).
TL;DR:
The origins of the widely observed "en passant" crack pattern are investigated, which forms through interactions between two approaching cracks that have a universal square root shape and are understood by using a simple geometric model of the crack-crack interaction.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
11. Sustainable Cities and Communities
(Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018
2009 journal article
A Porous Convection Model for Grass Patterns
AMERICAN NATURALIST, 175(1), E10–E15.
Contributors: S. Thompson * & n
author keywords: ecological patterns; thermal convection; soil moisture; chill damage
MeSH headings : Convection; Models, Theoretical; North Carolina; Poaceae / growth & development; Temperature
TL;DR:
Results indicate that similarities in pattern morphology should not be interpreted as implying similarities in the pattern‐forming processes, that small‐wavelength vegetation patterns may arise from mechanisms that are distinct from those generating long‐wa wavelength vegetation patterns, and that fluid instabilities should be recognized as a cause of ecological patterns.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
13. Climate Action
(Web of Science)
15. Life on Land
(Web of Science)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018
2009 conference paper
Boundary conditions and event scaling of granular stick-slip events
AIP Conference Proceedings. Presented at the Powders and Grains 2009: Proceedings of the 6th International Conference on Micromechanics of Granular Media.
Event: Powders and Grains 2009: Proceedings of the 6th International Conference on Micromechanics of Granular Media
Sources: ORCID, Crossref, NC State University Libraries
Added: January 8, 2019
2009 conference paper
Generating ensembles and measuring mixing in a model granular system
AIP Conference Proceedings. Presented at the Powders and Grains 2009: Proceedings of the 6th International Conference on Micromechanics of Granular Media.
Event: Powders and Grains 2009: Proceedings of the 6th International Conference on Micromechanics of Granular Media
Sources: ORCID, Crossref, NC State University Libraries
Added: January 8, 2019
2009 journal article
Generating ensembles of two-dimensional granular configurations
Chaos: An Interdisciplinary Journal of Nonlinear Science, 19(4), 041108.
MeSH headings : Algorithms; Computer Graphics; Computer Simulation; Models, Statistical; Nonlinear Dynamics; Oscillometry / methods; Rheology / methods; User-Computer Interface
TL;DR:
The braiding of these trajectories offers a more complete description of the system than the diffusion coefficient, as it includes topological information on the motion of grains with respect to their neighbors.
(via Semantic Scholar)
Sources: ORCID, Crossref, NC State University Libraries
Added: January 8, 2019
2009 journal article
Introduction: Sixth Annual Gallery of Nonlinear Images (Pittsburgh, Pennsylvania, 2009)
Chaos: An Interdisciplinary Journal of Nonlinear Science, 19(4), 041101.
MeSH headings : Algorithms; Computer Graphics; Computer Simulation; Imaging, Three-Dimensional / methods; Information Storage and Retrieval / methods; Models, Statistical; Nonlinear Dynamics; Oscillometry / methods; Signal Processing, Computer-Assisted
Sources: Crossref, NC State University Libraries
Added: February 6, 2020
2009 journal article
Mixing and segregation rates in sheared granular materials
PHYSICAL REVIEW E, 80(4).
author keywords: granular materials; mixing; particle size; percolation; segregation
TL;DR:
This work experimentally investigates sheared dense bidisperse granular materials as a function of the size ratio of the two species and finds that the mixing rate at low confining pressure behaves as expected from percolation-based arguments, but observes an anomalous effect for the resegregation rates.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
15. Life on Land
(OpenAlex)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018
2009 conference paper
Spatiotemporally Resolved Acoustics in a Photoelastic Granular Material
AIP Conference Proceedings, 1145, 447–450.
Event: Powders and Grains 2009: Proceedings of the 6th International Conference on Micromechanics of Granular Media
Sources: Crossref, ORCID
Added: October 29, 2022
2008 journal article
Competition and bistability of ordered undulations and undulation chaos in inclined layer convection
JOURNAL OF FLUID MECHANICS, 597, 261–282.
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018
2008 journal article
Force chains in seismogenic faults visualized with photoelastic granular shear experiments
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH, 113(B11).
UN Sustainable Development Goal Categories
11. Sustainable Cities and Communities
(Web of Science)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018
2007 article
Fluctuations, correlations and transitions in granular materials: statistical mechanics for a non-conventional system
Behringer, R. P., Daniels, K. E., Majmudar, T. S., & Sperl, M. (2008, February 28). PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, Vol. 366, pp. 493–504.
author keywords: granular materials; jamming; disordered solids
TL;DR:
Results from four representative studies are described, determining local force statistics, vector forces, force distributions and correlations for static granular systems and a dynamical transition where the material ‘freezes’ in the presence of apparent heating for a sheared and shaken system.
(via Semantic Scholar)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018
2007 journal article
Instabilities in Droplets Spreading on Gels
Physical Review Letters, 99(12), 123501.
TL;DR:
A novel surface-tension driven instability observed for droplets spreading on a compliant substrate is reported and it is found that the onset of the instability and the number of arms depend on the ratio of surface tension to gel strength.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation
(Web of Science)
11. Sustainable Cities and Communities
(Web of Science)
Sources: ORCID, NC State University Libraries, NC State University Libraries
Added: August 6, 2018
2006 journal article
Characterization of a freezing/melting transition in a vibrated and sheared granular medium
Journal of Statistical Mechanics: Theory and Experiment, 2006(07), P07018–P07018.
author keywords: phase diagrams (experiment); granular matter; slow relaxation and glassy dynamics; fluctuations (experiment)
Sources: ORCID, NC State University Libraries, NC State University Libraries
Added: August 6, 2018
2005 conference paper
Freezing and Melting in Granular Materials
AIP Conference Proceedings.
UN Sustainable Development Goal Categories
15. Life on Land
(OpenAlex)
Source: ORCID
Added: January 8, 2019
2005 journal article
Hysteresis and Competition between Disorder and Crystallization in Sheared and Vibrated Granular Flow
Physical Review Letters, 94(16), 168001.
TL;DR:
Experiments on spherical particles in a 3D annular shear cell vibrated from below and sheared from above show a hysteretic freezing or melting transition under sufficient vibration, which can be melted by sufficient shear.
(via Semantic Scholar)
Sources: ORCID, NC State University Libraries, NC State University Libraries
Added: August 6, 2018
2005 conference paper
Research Funding and Women in Physics
AIP Conference Proceedings. Presented at the Women in Physics: 2nd IUPAP International Conference on Women in Physics.
Event: Women in Physics: 2nd IUPAP International Conference on Women in Physics
Sources: Crossref, ORCID
Added: October 29, 2022
2005 journal article
Starbursts and wispy drops: Surfactants spreading on gels
Chaos: An Interdisciplinary Journal of Nonlinear Science, 15(4), 041107.
TL;DR:
This work examines the intermediate case of a viscoelastic substrate and observes novel instabilities of the surfactant-laden drop influenced by both the substrate fluidity and the Surfactant concentration.
(via Semantic Scholar)
Sources: ORCID, NC State University Libraries, NC State University Libraries
Added: August 6, 2018
2004 article
Defect turbulence and generalized statistical mechanics
Daniels, K. E., Beck, C., & Bodenschatz, E. B. (2004, June 15). PHYSICA D-NONLINEAR PHENOMENA, Vol. 193, pp. 208–217.
author keywords: convection defect turbulence; anomalous distributions; nonextensivity; tsallis entropy
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018
2004 journal article
Dynamics of meteor impacts
Chaos: An Interdisciplinary Journal of Nonlinear Science, 14(4), S4.
Contributors: * , J. Coppock * & R. Behringer *
TL;DR:
The morphology of meteor craters has historically been studied via static analysis, after the fact, of what are hi dynamic impact events, and forces within the photoelastic particles appear as streaks, where larger intensity gradients correspond to l forces.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
13. Climate Action
(OpenAlex)
Sources: ORCID, NC State University Libraries, NC State University Libraries
Added: August 6, 2018
2004 journal article
Statistics of defect trajectories in spatio-temporal chaos in inclined layer convection and the complex Ginzburg–Landau equation
Chaos: An Interdisciplinary Journal of Nonlinear Science, 14(3), 864–874.
MeSH headings : Models, Theoretical; Nonlinear Dynamics; Physics / methods; Poisson Distribution; Software; Time Factors
TL;DR:
In certain parameter regimes of the CGL and ILC, the results for the single-defect statistics show significant deviations from the previously reported findings that the defect dynamics are consistent with those of random walkers that are created with fixed probability and annihilated through random collisions.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
16. Peace, Justice and Strong Institutions
(OpenAlex)
Sources: ORCID, NC State University Libraries, Crossref, NC State University Libraries
Added: August 6, 2018
2003 journal article
Localized Transverse Bursts in Inclined Layer Convection
Physical Review Letters, 91(11), 114501.
TL;DR:
This work investigates a novel bursting state in inclined layer thermal convection in which convection rolls exhibit intermittent, localized, transverse bursts, and proposes a mechanism which describes the duration of the observed bursting intervals.
(via Semantic Scholar)
Sources: ORCID, NC State University Libraries, NC State University Libraries
Added: August 6, 2018
2003 journal article
Statistics of defect motion in spatiotemporal chaos in inclined layer convection
Chaos: An Interdisciplinary Journal of Nonlinear Science, 13(1), 55.
Contributors: * & E. Bodenschatz *
MeSH headings : Diffusion; Fourier Analysis; Nonlinear Dynamics; Physical Phenomena; Physics; Time Factors
TL;DR:
The ensemble of defect trajectories according to their velocities, relative positions, diffusion, and gain and loss rates are characterized and time-reversal and system size invariance for defect creation and annihilation rates are described.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
16. Peace, Justice and Strong Institutions
(OpenAlex)
Sources: ORCID, NC State University Libraries, NC State University Libraries
Added: August 6, 2018
2002 journal article
Defect Turbulence in Inclined Layer Convection
Physical Review Letters, 88(3), 034501.
TL;DR:
It is found that the onset of undulation chaos coincides with the theoretically predicted onset for stable, stationary undulations, suggesting bistability between a fixed-point attractor and spatiotemporal chaos.
(via Semantic Scholar)
Sources: ORCID, NC State University Libraries, NC State University Libraries
Added: August 6, 2018
2000 journal article
Pattern formation in inclined layer convection
PHYSICAL REVIEW LETTERS, 84(23), 5320–5323.
TL;DR:
A number of new nonlinear, mostly spatiotemporally chaotic, states are observed in thermally driven convection in an inclined layer of large aspect ratio in a fluid of Prandtl number sigma approximately 1.
(via Semantic Scholar)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018
Employment
Updated: October 27th, 2021 11:07
2021 - present
North Carolina State University Raleigh, North Carolina, US
Distinguished Professor of Physics
Physics
2015 - 2021
North Carolina State University Raleigh, NC, US
Professor
Physics
2011 - 2015
North Carolina State University Raleigh, NC, US
Associate Professor
Physics
2005 - 2011
North Carolina State University Raleigh, NC, US
Assistant Professor
Physics
2002 - 2005
Duke University Durham, NC, US
Research Associate
Physics
1994 - 1997
St. Ann's School Brooklyn, NY, US
Science Teacher
Education
Updated: September 26th, 2019 17:31
1997 - 2002
Cornell University Ithaca, NY, US
PhD
Physics
1997 - 2000
Cornell University Ithaca, NY, US
MS
Physics
1990 - 1994
Dartmouth College Hanover, NH, US
BA
Physics
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