Home > Conference materials > Papers > Investigation of deformation behaviour of aluminium foam under high-strain rate loading and comparison with conventional energy absorbing material
Original title:
Investigation of deformation behaviour of aluminium foam under high-strain rate loading and comparison with conventional energy absorbing material
Authors:
Zlámal, P. ; Fíla, Tomáš ; Jiroušek, O. ; Králík, V. Document type: Papers Conference/Event: Youth symposium on experimental solid mechanics /13./, Děčín (CZ), 2014-06-29 / 2014-07-02
Year:
2014
Language:
eng Abstract:
The aim of this study is proper description of stress-strain behaviour of the metal foam structure Alporas under high-strain rate loading. Stress-strain response of Alporas specimens is measured during an impact test using a drop tower experiment. Strain of the specimens is evaluated by two independent approaches: i) double numerical integration of acceleration data and ii) digital image correlation technique. Thus, experimental setup is equipped with triaxial accelerometer and high speed camera. Resulting stress-strain curves are compared with behaviour of polystyrene material samples (polystyrene material is commonly used as a shock absorber) obtained from the same testing procedure and with stress-strain function determined from Alporas quasi-static compression testing.
Keywords:
digital image correlation; impact test; metal foam; polystyrene Project no.: GAP105/12/0824 (CEP) Funding provider: GA ČR Host item entry: Proceedings of XIIIth youth symposium on experimental solid mechanics, ISBN 978-80-01-05556-4