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Modeling of Dislocation

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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Guardat en:
Autor principal: Erdle, Hannes
Format: Online
Idioma:anglès
Publicat: KIT Scientific Publishing 2022
Matèries:
Gradienten-Kristallplastizität
Erweiterte Kontinuumstheorie
Kontinuumsversetzungstheorie
Korngrenzmodellierung
Finite Elemente Methode
Gradient Crystal Plasticity
Extended Continuum Theory
Continuum Dislocation Theory
Grain Boundary Modeling
Finite Element Method
thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials
Accés en línia:ONIX_20220718_9783731511960_113
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Sumari: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.

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