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Deformation of open-cell aluminum foam

โœ Scribed by C. San Marchi; A. Mortensen

Publisher
Elsevier Science
Year
2001
Tongue
English
Weight
323 KB
Volume
49
Category
Article
ISSN
1359-6454

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โœฆ Synopsis

The mechanical properties of high-purity aluminum foams produced by replication from salt precursors are measured in compression. These foams have homogeneous open-porosity, cell sizes equivalent to the particle size of the precursor salt (เท‚500 ยตm in this case) and relative densities near 25%. Deformation is uniform and strain hardening similar to the bulk material is observed without a plateau stress. A simple analytical model based on beam theory is employed to describe the flow stress and the change in stiffness of the foams as a consequence of compression. This model leads to a modified scaling law for the flow stress of metallic foams.

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