Micro-Mechanical Testing of Metal Foam Cell Walls Using Miniature Three-Point Bending

Tomáš Fíla; Daniel Kytýř; Petr Koudelka; Tomáš Doktor; Petr Zlámal; Ondřej Jiroušek

doi:10.4028/www.scientific.net/KEM.586.120

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 586Micro-Mechanical Testing of Metal Foam Cell Walls...

Micro-Mechanical Testing of Metal Foam Cell Walls Using Miniature Three-Point Bending

Abstract:

This paper is focused on determination of micro-mechanical material properties of aluminium metal foam at level of single cell wall. For the purpose of homogenization, complex and heterogenous inner structure of metal foams requires deep understanding of its deformation mechanisms and local mechanical properties. Therefore, a series of micro-scale bending tests of specimens prepared from foam's cells wall were performed. Initially, a technique of specimen preparation was developed. Dimensions and geometry of the specimens were inspected using scanning electron microscopy (SEM). Custom-designed three-point bending device suitable for testing at micro-scale was used for loading. Thin pure aluminium metal sheets were used for calibration of the described method. Six single cell wall specimens were tested. It can be concluded that the developed specimen preparation technique and loading method are suitable to determine local mechanical properties of thin walled metal foams.

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Periodical:

Key Engineering Materials (Volume 586)

Pages:

120-124

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.586.120

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Online since:

September 2013

Authors:

Tomáš Fíla, Daniel Kytýř, Petr Koudelka, Tomáš Doktor, Petr Zlámal, Ondřej Jiroušek

Keywords:

ALPORAS, Metal Foam, Micro-Mechanical Properties, SEM, Three-Point Bending

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