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

Yamada, Yasuo, Asahina, Tadashi and Wen, Cui`e 2004, Effect of cell characteristics on the compressive deformation behavior of a closed-cell aluminium, in Cellular metals and polymers : CMaP : proceedings of the Symposium on Cellular Metals and Polymers, Trans Tech Publications Inc., Uetikon-Zuerich, Switzerland, pp. 115-118.

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Title Effect of cell characteristics on the compressive deformation behavior of a closed-cell aluminium
Author(s) Yamada, Yasuo
Asahina, Tadashi
Wen, Cui`e
Conference name Symposium on Cellular Metals and Polymers (2004 : Fürth, Germany)
Conference location Furth, Germany
Conference dates 12-14 October 2004
Title of proceedings Cellular metals and polymers : CMaP : proceedings of the Symposium on Cellular Metals and Polymers
Editor(s) Singer, R.F.
Korner, C.
Altstadt, V.
Munstedt, H.
Publication date 2004
Start page 115
End page 118
Publisher Trans Tech Publications Inc.
Place of publication Uetikon-Zuerich, Switzerland
Summary 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.
ISBN 087849491x
9780878494910
Language eng
Field of Research 091499 Resources Engineering and Extractive Metallurgy not elsewhere classified
HERDC Research category E1 Full written paper - refereed
HERDC collection year 2005
Copyright notice ©2005, Trans Tech Publications
Persistent URL http://hdl.handle.net/10536/DRO/DU:30009713

Document type: Conference Paper
Collection: School of Engineering and Technology
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