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

Institution: Institute of Theoretical and Applied Mechanics AS ČR (web)
Document availability information: Fulltext is available at external website.
External URL: http://www.itam.cas.cz/ysesm2014/proceedings/id_1_ysesm2014_proceedings.pdf
Original record: http://hdl.handle.net/11104/0236176

Permalink: http://www.nusl.cz/ntk/nusl-175201


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