Some steps towards a continuum representation of 3D dislocation systems

Michael Zaiser; Thomas Hochrainer

doi:10.1016/j.scriptamat.2005.10.060

Some steps towards a continuum representation of 3D dislocation systems

Michael Zaiser^*, Thomas Hochrainer

^*Korrespondierende/r Autor/-in für diese Arbeit

Institut für Festigkeitslehre (3040)

Publikation: Beitrag in einer Fachzeitschrift › Artikel › Begutachtung

Abstract

We outline a method for representing the dynamics of interacting curved dislocations in a continuum framework. Starting from a pseudo-continuum representation of the kinematics of discrete lines, we demonstrate how this can be used to derive a set of coupled equations for the densities of screw and edge components. We discuss how long- and short-range dislocation interactions can be treated within this framework, and apply the resulting equations to a simple model of channel slip.

Originalsprache	englisch
Seiten (von - bis)	717-721
Seitenumfang	5
Fachzeitschrift	Scripta Materialia
Jahrgang	54
Ausgabenummer	5
DOIs	https://doi.org/10.1016/j.scriptamat.2005.10.060
Publikationsstatus	Veröffentlicht - März 2006

ASJC Scopus subject areas

Elektronische, optische und magnetische Materialien
Allgemeine Materialwissenschaften
Metalle und Legierungen

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10.1016/j.scriptamat.2005.10.060

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abstract = "We outline a method for representing the dynamics of interacting curved dislocations in a continuum framework. Starting from a pseudo-continuum representation of the kinematics of discrete lines, we demonstrate how this can be used to derive a set of coupled equations for the densities of screw and edge components. We discuss how long- and short-range dislocation interactions can be treated within this framework, and apply the resulting equations to a simple model of channel slip.",

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AB - We outline a method for representing the dynamics of interacting curved dislocations in a continuum framework. Starting from a pseudo-continuum representation of the kinematics of discrete lines, we demonstrate how this can be used to derive a set of coupled equations for the densities of screw and edge components. We discuss how long- and short-range dislocation interactions can be treated within this framework, and apply the resulting equations to a simple model of channel slip.

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KW - Size effects

KW - Statistical mechanics

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Some steps towards a continuum representation of 3D dislocation systems

Abstract

ASJC Scopus subject areas

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