Engineering Transactions, 64, 4, pp. 629–634, 2016

Compression of Open-Cell Aluminium

AGH University of Science and Technology,

Institute of Ceramics and Building Materials

Ryszard Bolesław PĘCHERSKI
AGH University of Science and Technology

Anna Małgorzata STRĘK
Cracow University of Technology

Krzysztof WAŃCZYK
Foundry Research Institute, Center for Design and Prototyping

The paper presents compression test results of self-made open-cell aluminium which was produced by the investment casting method. Two groups of samples were studied: prototype samples containing some structural imperfections (apparent density 0.485 g/cm3) and regular samples without visible mistakes (app. density 0.312 g/cm3). Performed experimental research covered quasi-static compression tests with one hysteresis loop. Based on experimental results, new measures to help material characterisation were proposed: instant and average loop secant gradients ($E_{inst.sec}^{**}$ and $E_{av.inst.sec}^{**}$) and average linear loop gradient ($E_{av.lin}^{**}$).
Keywords: open-cell aluminium; aluminium sponge; compression test; loop gradient
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Copyright © Polish Academy of Sciences & Institute of Fundamental Technological Research (IPPT PAN).


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DOI: 10.24423/engtrans.749.2016