Compressive behaviour of aluminium foams at low and medium strain rates

Compressive behaviour of CYMAT aluminium foams with relative densities ranged from 5% to 20% has been studied experimentally in this paper. An MTS machine is employed to apply a compressive load at strain rates of 10 −3–10 +1 s −1 to these closed-cell aluminium foams. It has been found that the plat...

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Bibliographic Details
Published inComposite structures Vol. 57; no. 1; pp. 331 - 336
Main Authors Ruan, D, Lu, G, Chen, F.L, Siores, E
Format Journal Article Conference Proceeding
LanguageEnglish
Published Oxford Elsevier Ltd 01.07.2002
Elsevier Science
Subjects
Aluminium foams
Applied sciences
Elasticity. Plasticity
Exact sciences and technology
Low and medium strain rates
Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology
Metals. Metallurgy
Low and medium strain rates
Aluminium foams
Cell structure
Compression
Medium speed
Low speed
Metal foam
Mechanical properties
Aluminium
Experimental study
Porous material
Strain rate
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Summary:Compressive behaviour of CYMAT aluminium foams with relative densities ranged from 5% to 20% has been studied experimentally in this paper. An MTS machine is employed to apply a compressive load at strain rates of 10 −3–10 +1 s −1 to these closed-cell aluminium foams. It has been found that the plateau stress is insensitive to the strain rate and is related to the relative density by a power law. Deformation is not uniform over the whole sample: it first occurs in the weakest band, followed by the next weakest bands after the first one has been completely crushed.
ISSN:0263-8223
1879-1085
DOI:10.1016/S0263-8223(02)00100-9