Zhou, Xiandong ; Reimuth, Christoph ; Stein, Peter ; Xu, Bai-Xiang (2021)
Driving forces on dislocations: finite element analysis in the context of the non-singular dislocation theory.
In: Archive of Applied Mechanics, 91 (11)
doi: 10.1007/s00419-021-02017-w
Artikel, Bibliographie
Dies ist die neueste Version dieses Eintrags.
Kurzbeschreibung (Abstract)
This work presents a regularized eigenstrain formulation around the slip plane of dislocations and the resultant non-singular solutions for various dislocation configurations. Moreover, we derive the generalized Eshelby stress tensor of the configurational force theory in the context of the proposed dislocation model. Based on the non-singular finite element solutions and the generalized configurational force formulation, we calculate the driving force on dislocations of various configurations, including single edge/screw dislocation, dislocation loop, interaction between a vacancy dislocation loop and an edge dislocation, as well as a dislocation cluster. The non-singular solutions and the driving force results are well benchmarked for different cases. The proposed formulation and the numerical scheme can be applied to any general dislocation configuration with complex geometry and loading conditions.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2021 |
| Autor(en): | Zhou, Xiandong ; Reimuth, Christoph ; Stein, Peter ; Xu, Bai-Xiang |
| Art des Eintrags: | Bibliographie |
| Titel: | Driving forces on dislocations: finite element analysis in the context of the non-singular dislocation theory |
| Sprache: | Englisch |
| Publikationsjahr: | November 2021 |
| Ort: | Berlin ; Heidelberg |
| Verlag: | Springer |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Archive of Applied Mechanics |
| Jahrgang/Volume einer Zeitschrift: | 91 |
| (Heft-)Nummer: | 11 |
| DOI: | 10.1007/s00419-021-02017-w |
| Zugehörige Links: | |
| Kurzbeschreibung (Abstract): | This work presents a regularized eigenstrain formulation around the slip plane of dislocations and the resultant non-singular solutions for various dislocation configurations. Moreover, we derive the generalized Eshelby stress tensor of the configurational force theory in the context of the proposed dislocation model. Based on the non-singular finite element solutions and the generalized configurational force formulation, we calculate the driving force on dislocations of various configurations, including single edge/screw dislocation, dislocation loop, interaction between a vacancy dislocation loop and an edge dislocation, as well as a dislocation cluster. The non-singular solutions and the driving force results are well benchmarked for different cases. The proposed formulation and the numerical scheme can be applied to any general dislocation configuration with complex geometry and loading conditions. |
| Freie Schlagworte: | Dislocation, Driving force, Non-singular continuum theory, Finite element method |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften und Maschinenbau 600 Technik, Medizin, angewandte Wissenschaften > 660 Technische Chemie |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Mechanik Funktionaler Materialien |
| Hinterlegungsdatum: | 27 Mär 2024 06:52 |
| Letzte Änderung: | 27 Mär 2024 06:52 |
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| Suche nach Titel in: | TUfind oder in Google |
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Driving forces on dislocations: finite element analysis in the context of the non-singular dislocation theory. (deposited 26 Mär 2024 14:06)
- Driving forces on dislocations: finite element analysis in the context of the non-singular dislocation theory. (deposited 27 Mär 2024 06:52) [Gegenwärtig angezeigt]
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