Grain Boundary Effects and Failure Evolution in Polycrystalline Materials
Dislocation density based multiple-slip constitutive formulations and specialized computational schemes are introduced to account for large-strain ductile deformation modes in polycrystalline aggregates. Furthermore, new kinematically based interfacial grain boundary regions and formulations are introduced to account for dislocation density transmission, absorption, and pile-ups that may occur due to grain boundary misorientations and properties.
Key wordspolycrystalline materials grain boundary dislocation density crystal plasticity
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