MEASURING OF ELASTIC PROPERTIES OF METAL FOAM BASED ON COMPRESSION TEST AND DIGITAL IMAGE CORRELATION

P. Zlamal, D. Kytyr, T. Fila, P. Koudelka, O. Jirousek

Abstract

From a mechanical point of view the most important ability of metal foam is absorption of large amounts of strain energy. This advantage is based on the cellular structure with high ratio of porosity (75-95%). The aim of this study is determination of stress-strain measurement protocol for closed-cell aluminium metal foam Alporas® during a compression test using in-house loading device. Changes in structure were observed and strain was calculated based on Digital Image Correlation (DIC) technique. For the assessment of overall compression elastic modulus a new software tool based on the Matlab toolkit was developed.

Keywords

Alporas, compression test, DIC, metal foam

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IMEKO-YSESM-2012-43.pdf

DOI

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IMEKO TC

TC15 - Experimental Mechanics

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