Analytic prediction of structural stress-strain relations of microstructured metal

Yang, Chunhui, Sabirov, Ilchat, Mullins, Jonathan and Hodgson, Peter 2008, Analytic prediction of structural stress-strain relations of microstructured metal, Advanced materials research, vol. 32, pp. 83-86, doi: 10.4028/

Attached Files
Name Description MIMEType Size Downloads

Title Analytic prediction of structural stress-strain relations of microstructured metal
Author(s) Yang, Chunhui
Sabirov, Ilchat
Mullins, Jonathan
Hodgson, Peter
Journal name Advanced materials research
Volume number 32
Start page 83
End page 86
Total pages 4
Publisher Trans Tech Publications Ltd
Place of publication Stafa-Zurich, Switzerland
Publication date 2008
ISSN 1022-6680
Keyword(s) multi-modal microstructure
multiscale modelling
stress strain relations
unit cell approach
Summary Nanostructured and ultra-fine grained metals have higher strength but extremely limited ductility compared to coarse grained metals. However, their ductility can be greatly improved by introducing a specific range of grain sizes in the microstructures. In the paper, multiscale unit cell approach (UCA) is developed and applied to predict the averaged stress-strain relations of the multiscale microstructure metals. The unit cell models are three-phase structured at different scale lengths of 100 nm, 1 μm and 10 μm with different volume fractions and periodic boundary conditions. The contributions of multi-scale microstructures to the macroscopic structural properties of metals are also studied using a analytic approach—two-step mean-field method (TSMF), where three microstructural parameters are introduced and thus mechanical properties such as strength and ductility are presented as a function of these parameters. For verification of these proposed numerical and theoretical algorithms, the structural properties of the pure nickel with three-grain microstructures are studied and the results from FEA and the proposed theory have good agreement.
Language eng
DOI 10.4028/
Field of Research 091307 Numerical Modelling and Mechanical Characterisation
Socio Economic Objective 861206 Structural Metal Products
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2008, Trans Tech Publications
Persistent URL

Connect to link resolver
Unless expressly stated otherwise, the copyright for items in DRO is owned by the author, with all rights reserved.

Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 2 times in TR Web of Science
Scopus Citation Count Cited 2 times in Scopus
Google Scholar Search Google Scholar
Access Statistics: 903 Abstract Views, 0 File Downloads  -  Detailed Statistics
Created: Fri, 14 Aug 2009, 13:54:17 EST

Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact