2017
Particle rearrangement and softening contributions to the nonlinear mechanical response of glasses
Fan M, Zhang K, Schroers J, Shattuck MD, O'Hern CS. Particle rearrangement and softening contributions to the nonlinear mechanical response of glasses. Physical Review E 2017, 96: 032602. PMID: 29346996, DOI: 10.1103/physreve.96.032602.Peer-Reviewed Original ResearchMechanical responseStress lossParticle rearrangementGlass configurationRapid stress dropStress-strain curvesNonlinear mechanical responsePlastic flow regimeStrain curvesSlow cooling rateElastic regimeLarge strainsShear strainSmall strainsFlow regimeBinary Lennard-Jones glassCooling rateNumerical simulationsPure shearStrain directionAmorphous materialsGlassEnergy lossLennard-Jones glassStress dropEffects of cooling rate on particle rearrangement statistics: Rapidly cooled glasses are more ductile and less reversible
Fan M, Wang M, Zhang K, Liu Y, Schroers J, Shattuck MD, O'Hern CS. Effects of cooling rate on particle rearrangement statistics: Rapidly cooled glasses are more ductile and less reversible. Physical Review E 2017, 95: 022611. PMID: 28297989, DOI: 10.1103/physreve.95.022611.Peer-Reviewed Original ResearchParticle rearrangementMechanical responseShear cyclesParticle motionDuctile glassesEnhanced ductilityEnergy lossCumulative energy lossIrreversible particle motionPlastic flowAmorphous solidsLinear regimeApplied deformationElastic responseBinary Lennard-Jones glassCooling rateDuctilityPure shearGlassLennard-Jones glassSolidsColloidal glassesDuctileMotion
2013
Computational studies of the glass-forming ability of model bulk metallic glasses
Zhang K, Wang M, Papanikolaou S, Liu Y, Schroers J, Shattuck MD, O'Hern CS. Computational studies of the glass-forming ability of model bulk metallic glasses. The Journal Of Chemical Physics 2013, 139: 124503. PMID: 24089782, DOI: 10.1063/1.4821637.Peer-Reviewed Original ResearchBulk metallic glassGlass-forming abilityMetallic glassesTypical bulk metallic glassesLiquid metal alloysCritical cooling rateBMGs increasesGlass transition temperatureParticle size differencesAtomic size ratioMetal alloysCooling rateNegative heatKey parametersBinary LJ mixturesGlass formationTransition temperatureOrders of magnitudeSize ratioHeatGlass-forming mixturesGlassSimulationsDynamics simulationsMolecular dynamics simulations