Manufacturing Technology 2020, 20(5):639-645
Design and Analysis of Honeycomb based Impact Attenuator
- Faculty of Mechanical Engineering, Technical University of Liberec, Studentska 2, 461 17 Liberec 1, Czech Republic
The main idea of this research work is to understand the energy absorbing capacity of cellular solids when used in application of automobile as a safety measure to protect the occupants and structure of the vehicle. The full scaled model of the proposed design of the impact attenuator would be an expensive approach to follow. To understand the mechanism of energy absorption in honeycomb structure two types of experimental test were carried out. The first test includes a simple compression test of honeycomb structure only. The second experimental test consist of a composite sandwich of glass fiber and honeycomb under high speed drop test. Using the simple compression test the mechanical properties of the honeycomb were extracted in the out of plane behavior and then results from experimental data were calibrated with the FEM model. It was observed that very similar results were obtained in Experimental and FEM methods. And finally, the full scaled model analysis was carried in FEM package of ANSYS using mechanical properties of honeycomb extracted in simple compression test.
Keywords: Impact attenuator, Compression, Energy Absorbing, Cellular Solids.
Grants and funding:
Ministry of Education, Youth and Sports of the Czech Republic and the European Union - European Structural and Investment Funds in the frames of Operational Programme Research, Development and Education - project Hybrid Materials for Hierarchical Structures (HyHi, Reg. No. CZ.02.1.01/0.0/0.0/16_019/0000843).
Received: May 1, 2020; Revised: October 7, 2020; Accepted: October 14, 2020; Prepublished online: November 23, 2020; Published: December 14, 2020 Show citation
References
- Gibson, L. J., M. F. Ashby, and B. A. Harley, Cellular Materials in Nature and Medicine, Cambridge University Press, 2010. ISBN: 9780521195447
- M. Raguraman and B. C. David, Lightweight impact crash attenuators for a small Formula SAE race car, International Journal of Crashworthiness, pp. 223-234, 2010
Go to original source...
- Lecture notes, Automotive Engineering, Karlsruhe Institute of Technology (Germany).
- Karel Raz, Jan Hora, Petr Pavlata, Unconventional Materials Usage in Design of Vehicle Bodies, Manufacturing Technology 2017, 17(5):823-827
Go to original source...
- Online material available on Impact Attenuator
- H. Zarei and M. Kroger, Optimum honeycomb filled crash absorber design, Germany: University of Hannover, Materials & Design, pp. 193-204, 2006
Go to original source...
- Kumar Devender and Khanna Naman, Drop Test Analysis of Impact Attenuator for Formula SAE Car, International Journal of Scientific and Research Publications, Vol. 02 (10), pp. 01-04, 2012
- Miroslav Müller, Alessandro Ruggiero, Petr Valášek, Mechanical Characterisation of Metal/Polymeric Composite Waste/Metal Sandwich Panel, Manufacturing Technology 2017, 17(4):530-536
Go to original source...
- Gibson, L. J., and M. F. Ashby, Cellular Solids: Structure and Properties, 2nd ed. Cambridge University Press, 1997. ISBN: 9780521495608
Go to original source...
- Coesfeld, Coesfeld Instrumented Impact Testers Manual
This is an open access article distributed under the terms of the Attribution-NonCommercial 4.0 International License (CC BY-NC 4.0), which permits non-comercial use, distribution, and reproduction in any medium, provided the original publication is properly cited. No use, distribution or reproduction is permitted which does not comply with these terms.