Applied Physics Letters · 1973 · 188 citations · 4 references
Natural SciencesMaterials EngineeringMaterials ScienceMechanical Behavior Of MaterialsSolid MechanicsSolid State PhysicsDeformation MechanismsDislocation MechanicsDislocation TheoryLiquid CrystalsPlastic DeformationStrain HardeningCholesteric Liquid CrystalsDislocation BehaviorDislocation MotionDislocation-based PlasticityLarge Plastic StrainPlastic InstabilitySmectic Liquid CrystalsThreshold Conditions
A mechanism is proposed for the observed mechanical instability of monodomain smectic A and cholesteric liquid crystals subjected to uniaxial dilative stress. The threshold conditions for the instability are derived, and the possible roles of dislocations in controlling the instability and in producing large plastic distortions are discussed.
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