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
2014
Hypocoordinated solids in particulate media
Bertrand T, Schreck CF, O'Hern CS, Shattuck MD. Hypocoordinated solids in particulate media. Physical Review E 2014, 89: 062203. PMID: 25019766, DOI: 10.1103/physreve.89.062203.Peer-Reviewed Original ResearchConceptsInput kinetic energyInterparticle contactsParticle rearrangementGranular mediaContact forceRepulsive contact forcesParticulate systemsHarmonic responseParticulate mediaDegrees of freedomKinetic energyIsostatic valueAverage contact numberFourier transformFraction deviationSolidsFrictionless disks