Modeling of Dislocation Grain Boundary Interactions in Gradient Crystal Plasticity Theories

Modeling of Dislocation Grain Boundary Interactions in Gradient Crystal Plasticity Theories

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A physically-based dislocation theory of plasticity is derived within an extended continuum mechanical context. Thermodynamically consistent flow rules at the grain boundaries are derived. With an analytical solution of a three-phase periodic laminate, dislocation pile-up at grain boundaries and dis...

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Bibliographic Details
Main Author: Erdle, Hannes (auth)
Format: Electronic Book Chapter
Language:English
Published: Karlsruhe KIT Scientific Publishing 2022
Series:Schriftenreihe Kontinuumsmechanik im Maschinenbau
Subjects:
Mechanical engineering & materials
Gradienten-Kristallplastizität
Erweiterte Kontinuumstheorie
Kontinuumsversetzungstheorie
Korngrenzmodellierung
Finite Elemente Methode
Gradient Crystal Plasticity
Extended Continuum Theory
Continuum Dislocation Theory
Grain Boundary Modeling
Finite Element Method
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Summary:A physically-based dislocation theory of plasticity is derived within an extended continuum mechanical context. Thermodynamically consistent flow rules at the grain boundaries are derived. With an analytical solution of a three-phase periodic laminate, dislocation pile-up at grain boundaries and dislocation transmission through the grain boundaries are investigated. For the finite element implementations, numerically efficient approaches are introduced based on accumulated field variables.
Physical Description:1 electronic resource (186 p.)
ISBN:KSP/1000146388
9783731511960
Access:Open Access

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