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The J-integral and geometrically necessary dislocations in nonuniform plastic deformation
International Journal of Plasticity, 2004zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Huajian Gao
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Geometrically necessary dislocation and size-dependent plasticity
Scripta Materialia, 2003Abstract There has recently been a strong interest in modeling size-dependent plasticity in metals based on the concept of geometrically necessary dislocations. This article presents a brief summary of our viewpoints on geometrically necessary dislocations and their role in the development of continuum plasticity theories with an intrinsic material ...
Huajian Gao, Yonggang Huang
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On the characterization of geometrically necessary dislocations in finite plasticity
Journal of the Mechanics and Physics of Solids, 2001zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Paolo Cermelli
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Scripta Materialia, 2003 Abstract The relations between mesoscopic plastic strain gradients, ‘geometrically necessary’ dislocations (GND), and dislocation dynamics are discussed. It is argued that the connection between GND and size effects in crystal plasticity should be established on the basis of dislocation dynamics, taking into account the specific deformation ...
Michael Zaiser, Elias C Aifantis
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Acta Materialia, 2006
A dislocation density based constitutive model for face-centred cubic crystals is introduced and implemented into a crystal plasticity finite element framework. The approach assumes a homogeneous dislocation structure and tracks the dislocation evolution on each slip system.
Anxin Ma, Franz Roters, Dierk Raabe
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A dislocation density based constitutive model for face-centred cubic crystals is introduced and implemented into a crystal plasticity finite element framework. The approach assumes a homogeneous dislocation structure and tracks the dislocation evolution on each slip system.
Anxin Ma, Franz Roters, Dierk Raabe
exaly +3 more sources
Character and Distribution of Geometrically Necessary Dislocations in Polycrystalline Tantalum
Microscopy and Microanalysis, 2023Abstract Geometrically necessary dislocations (GNDs) play a key role in accommodating strain incompatibility between neighboring grains in polycrystalline materials. One critical step toward accurately capturing GNDs in deformation models involves studying the microstructural features that promote GND accumulation and the resulting ...
Landon T Hansen +5 more
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Acta Materialia, 2016 International audienceThe density of geometrically necessary dislocations (GND) obtained from the lattice curvature was studied in commercially pure copper up to extreme large strains (von Mises strain of 63). Its evolution shows an increase to a maximum
László S Tóth, C F Gu, B Beausir
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