Název:
Investigation of deformation behaviour of aluminium foam under high-strain rate loading and comparison with conventional energy absorbing material
Autoři:
Zlámal, P. ; Fíla, Tomáš ; Jiroušek, O. ; Králík, V. Typ dokumentu: Příspěvky z konference Konference/Akce: Youth symposium on experimental solid mechanics /13./, Děčín (CZ), 2014-06-29 / 2014-07-02
Rok:
2014
Jazyk:
eng
Abstrakt: 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.
Klíčová slova:
digital image correlation; impact test; metal foam; polystyrene Číslo projektu: GAP105/12/0824 (CEP) Poskytovatel projektu: GA ČR Zdrojový dokument: Proceedings of XIIIth youth symposium on experimental solid mechanics, ISBN 978-80-01-05556-4