A numerical study of effect of grain boundaries on elastic and plastic properties in nanocomposite materials

Huang, H, Bush, MB and Fisher, GV (1997) A numerical study of effect of grain boundaries on elastic and plastic properties in nanocomposite materials. Cmmc 96 - Proceedings of The First International Conference On Ceramic And Metal Matrix Composites, Pts 1 And 2, 127- : 1191-1198.

Author Huang, H
Bush, MB
Fisher, GV
Title A numerical study of effect of grain boundaries on elastic and plastic properties in nanocomposite materials
Journal name Cmmc 96 - Proceedings of The First International Conference On Ceramic And Metal Matrix Composites, Pts 1 And 2   Check publisher's open access policy
Publication date 1997
Sub-type Article
Volume number 127-
ISBN 0-87849-753-6
ISSN 1013-9826
Start page 1191
End page 1198
Total pages 8
Language eng
Abstract Nanocomposite materials have received considerable attention in recent years due to their novel properties. Grain boundaries are considered to play an important role in nanostructured materials. This work focuses on the finite element analysis of the effect of grain boundaries on the overall mechanical properties of aluminium/alumina composites. A grain boundary is incorporated into the commonly used unit cell model to investigate its effect on material properties. By combining the unit cell model with an indentation model, coupled with experimental indentation measurements, the ''effective'' plastic property of the grain boundary is estimated. In addition, the strengthening mechanism is also discussed based on the Estrin-Mecking model.
Keyword Materials Science, Ceramics
Materials Science, Composites
Elastic And Plastic Properties
Grain Boundary
Finite Element Analysis
Unit Cell And Indentation Models
Estrin-mecking Model
Hall-petch Relationship
Nanocrystalline Materials
Composites
Microstructure
Deformation
Aluminum
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article
Collection: School of Mechanical & Mining Engineering Publications
 
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Created: Mon, 13 Aug 2007, 16:38:26 EST