Compression of Open-Cell Aluminium

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Authors

  • Piotr KASZA AGH University of Science and Technology,, Poland
  • Barbara LIPOWSKA Institute of Ceramics and Building Materials, Poland
  • Ryszard Bolesław PĘCHERSKI AGH University of Science and Technology, Poland
  • Anna Małgorzata STRĘK Cracow University of Technology, Poland
  • Krzysztof WAŃCZYK Foundry Research Institute, Center for Design and Prototyping, Poland

Abstract

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

References

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