Deakin University
Browse

File(s) under permanent embargo

Effect of cell characteristics on the compressive deformation behavior of a closed-cell aluminium

conference contribution
posted on 2004-01-01, 00:00 authored by Y Yamada, T Asahina, Cui'E Wen
In this study, the mechanical properties of a closed-cell aluminium foam have been investigated by compressive tests. The deformation behaviors of the aluminium foams were studied using X-ray microtomography (XMT). Aluminium foam samples with various cell size distributions and cell
morphologies were intentionally selected to investigate the effect of the cell characteristics on the deformation behaviors. Results indicated that the deformation of the aluminium foams under compressive loading was localized in narrow continuous deformation bands having widths of order of a cell diameter. The cells in the deformation bands collapsed by a mixed deformation mechanism, which includes mainly bending, and also minor buckling and yielding as well. Different fractions of the three deformation modes led to variations in the peak stress and energy absorption for different foam samples with the same density. It was also found that the cell morphology affected the deformation mechanism significantly, whilst the cell size showed little influence. Those cells with defects such as corrugations, curvatures and non-uniformities in the wall thickness were the initiators of the deformation bands of the aluminium foam.

History

Event

Symposium on Cellular Metals and Polymers (2004 : Fürth, Germany)

Pagination

115 - 118

Publisher

Trans Tech Publications Inc.

Location

Furth, Germany

Place of publication

Uetikon-Zuerich, Switzerland

Start date

2004-10-12

End date

2004-10-14

ISBN-13

9780878494910

ISBN-10

087849491x

Language

eng

Publication classification

E1 Full written paper - refereed

Copyright notice

2005, Trans Tech Publications

Editor/Contributor(s)

R Singer, C Korner, V Altstadt, H Munstedt

Title of proceedings

Cellular metals and polymers : CMaP : proceedings of the Symposium on Cellular Metals and Polymers

Usage metrics

    Research Publications

    Categories

    No categories selected

    Keywords

    Exports

    RefWorks
    BibTeX
    Ref. manager
    Endnote
    DataCite
    NLM
    DC