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Investigation of cell shape effect on the mechanical behaviour of open-cell metal foams

An, Yang, Wen, Cui'e, Hodgson, Peter D. and Yang, Chunhui 2012, Investigation of cell shape effect on the mechanical behaviour of open-cell metal foams, Computational materials science, vol. 55, no. 5, pp. 1-9.

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Title Investigation of cell shape effect on the mechanical behaviour of open-cell metal foams
Author(s) An, Yang
Wen, Cui'e
Hodgson, Peter D.
Yang, Chunhui
Journal name Computational materials science
Volume number 55
Issue number 5
Start page 1
End page 9
Total pages 9
Publisher Elsevier BV
Place of publication Amsterdam, The Netherlands
Publication date 2012-04
ISSN 0927-0256
Keyword(s) cell shape effect
deformation mode
effective Young's modulus
failure mechanism
finite element modelling
open-cell metal foams
Summary The mechanical behaviours of metal foams greatly depend on their cell topology, including cell shape, cell size etc. as well as relative density and material properties of the cell wall. However, the cell shape effect on the mechanical behaviours of such materials appears to be ignored in previous research. In this paper, both analytic and finite element models are developed and employed to investigate the effect of cell shape on the mechanical behaviour of open-cell magnesium alloy (AZ91) foams under compression, including deformation modes and failure modes. For numerical modelling, both two-dimensional (2-D) and three-dimensional (3-D) finite element models are developed to predict the compressive behaviours of typical open-cell metal foams and capture the deformation modes and failure mechanisms. Two typical cell shapes i.e. cubic and diamond are taken into consideration. To validate these models, the analytic and numerical results are compared to the experimental data. Both the numerical and experimental data indicate that the cell shape significantly affects the compression behaviour of open-cell metal foams. In general, numerical results from the three-dimensional solid-element model show better agreement with the experimental results than those from other finite element models.
Language eng
Field of Research 091207 Metals and Alloy Materials
010301 Numerical Analysis
Socio Economic Objective 870302 Metals (e.g. Composites, Coatings, Bonding)
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2011, Elsevier B.V.
Persistent URL http://hdl.handle.net/10536/DRO/DU:30044388

Document type: Journal Article
Collections: School of Engineering
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Created: Thu, 05 Apr 2012, 16:12:56 EST

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