Modeling of Dislocation Grain Boundary Interactions in Gradient Crystal Plasticity Theories

• Auteur principal: Erdle, Hannes (auth)
• Format: Électronique Chapitre de livre
• Langue: anglais
• Publié: Karlsruhe KIT Scientific Publishing 2022
• Collection: Schriftenreihe Kontinuumsmechanik im Maschinenbau 19
• Sujets: 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
• Accès en ligne: OAPEN Library: download the publication; OAPEN Library: description of the publication

Résumé

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.

Description matérielle

1 electronic resource (186 p.)

ISBN

KSP/1000146388
9783731511960

Accès

Open Access