2024
Connecting polymer collapse and the onset of jamming
Grigas A, Fisher A, Shattuck M, O'Hern C. Connecting polymer collapse and the onset of jamming. Physical Review E 2024, 109: 034406. PMID: 38632799, DOI: 10.1103/physreve.109.034406.Peer-Reviewed Original ResearchStatic packingsMechanical propertiesPolymer packingPacking fractionBead-spring polymersInterior of proteinsInterparticle contactsHigh packing fractionsPolymerAmino acidsDegrees of freedomRepulsive disksQuartic modesPolymer collapseQuartic scalingRepulsive particlesInterparticlePeptide bondPropertiesReference systemPackingParticlesPotential energyExcessive contactMode
2019
Jammed packings of 3D superellipsoids with tunable packing fraction, coordination number, and ordering
Yuan Y, VanderWerf K, Shattuck MD, O'Hern CS. Jammed packings of 3D superellipsoids with tunable packing fraction, coordination number, and ordering. Soft Matter 2019, 15: 9751-9761. PMID: 31742301, PMCID: PMC6902436, DOI: 10.1039/c9sm01932d.Peer-Reviewed Original ResearchParticle shape parametersDifferent particle shapesPacking fractionAspect ratio βMechanical propertiesCompression simulationsDilute configurationsNumerical studyStatic packingsParticle shapeSuperellipsoidal particlesIsostatic valueRatio βDense configurationPacking-generation protocolsShape parametersParticlesJammed packingsQuartic modesRedundant contactsConfigurationSuperellipsoidsParametersOrientational order
2013
Particle-scale reversibility in athermal particulate media below jamming
Schreck CF, Hoy RS, Shattuck MD, O'Hern CS. Particle-scale reversibility in athermal particulate media below jamming. Physical Review E 2013, 88: 052205. PMID: 24329257, DOI: 10.1103/physreve.88.052205.Peer-Reviewed Original Research
2012
Constraints and vibrations in static packings of ellipsoidal particles
Schreck CF, Mailman M, Chakraborty B, O'Hern CS. Constraints and vibrations in static packings of ellipsoidal particles. Physical Review E 2012, 85: 061305. PMID: 23005084, DOI: 10.1103/physreve.85.061305.Peer-Reviewed Original ResearchConceptsStatic packingsEllipsoidal particlesFinite compressionMechanical propertiesStiffness matrixAspect ratioSpherical particlesHarmonic responseNumber of particlesAmorphous packingsParticlesAmplitude δPotential energy scalesMatrixInterparticle separationCompressionVibrationModePackingContact numberContactJamming