INVESTIGATION OF DEFORMATION BEHAVIOUR OF ALUMINIUM FOAM UNDER HIGH-STRAIN RATE LOADING AND COMPARISON WITH CONVENTIONAL ENERGY ABSORBING MATERIAL |
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| P. Zlámal, T. Fila, O. Jirousek, V. Králik |
- 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, polystyrene, metal foam
- Download:
- IMEKO-YSESM-2014-034.pdf
- DOI:
- -
- Event details
- IMEKO TC:
- TC15
- Event name:
- TC15 Youth Symposium 2014
- Title:
13th Youth Symposium on Experimental Solid Mechanics
- Place:
- Děčín, CZECH REPUBLIC
- Time:
- 29 June 2014 - 02 July 2014