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Finite-element analysis of plastic slip and evolution of geometrically necessary dislocations in fcc crystals
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1997
Year
EngineeringSevere Plastic DeformationMechanical EngineeringPlastic Slip StrainMechanics Of MaterialsMechanicsMicrostructure-strength RelationshipNecessary DislocationsMaterials ScienceStrain LocalizationMechanical BehaviorSolid MechanicsPlasticityMechanical DeformationMicrostructureDislocation InteractionFcc CrystalsApplied PhysicsSlip SystemsPlastic Slip
ABSTRACT The density distribution of geometrically necessary dislocations, which accompany the gradient of plastic slip strain on slip systems, is evaluated by a finite-element technique. As a numerical example, the bending of a single-crystal plate is analysed. The result obtained for the density distribution of dislocations shows good agreement with that obtained by micromechanics theory.