Characterization and modeling of localized compaction in aluminum foam

Uniaxial compression tests on aluminum foam reveal formation of bands of localized compaction, initiating near peak stress, and becoming clearly defined during the subsequent stress drop. Band formation is modeled as a bifurcation from uniform deformation due to a constitutive instability. Theoretic...

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Bibliographic Details
Published inScripta materialia Vol. 52; no. 9; pp. 911 - 915
Main Authors Issen, K.A., Casey, T.P., Dixon, D.M., Richards, M.C., Ingraham, J.P.
Format Journal Article
LanguageEnglish
Published New York, NY Elsevier Ltd 01.05.2005
Elsevier Science
Subjects
Aluminum
Analytical methods
Applied sciences
Compression test
Exact sciences and technology
Foams
Metals. Metallurgy
Powder metallurgy. Composite materials
Production techniques
Sintered metals and alloys. Pseudo alloys. Cermets
Yield phenomena
Foams
Analytical methods
Aluminum
Compression test
Yield phenomena
Metal foam
Compaction
Powder metallurgy
Modeling
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Summary:Uniaxial compression tests on aluminum foam reveal formation of bands of localized compaction, initiating near peak stress, and becoming clearly defined during the subsequent stress drop. Band formation is modeled as a bifurcation from uniform deformation due to a constitutive instability. Theoretical predictions and experimental observations are in reasonable agreement.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:1359-6462
1872-8456
DOI:10.1016/j.scriptamat.2004.12.031