Crashworthiness of Agglomerated Cork Under the Influence of Extremely Low and High Temperatures
Johannes Wilhelm, Pawel Kaczynski, Mariusz Ptak, Fabio A.O. Fernandes, Ricardo J. Alves de Sousa
Abstract. Cork material is utilized nowadays in a wide variety of applications due to its excellent shock absorption, thermal and acoustic insulation properties. Especially, this applies to agglomerated cork, which is acting in applications of even highly demanded dimensional stability nearly isotropic due to the random orientation of its grains and offers dominantly viscoelastic behaviour with almost zero Poisson’s ratio. As the interest in the outdoor application of cork material increases, the assessment of its performance under extremely low and high temperatures is inevitable. The research addresses this topic for five different types of cork agglomerates and assesses their capability to withstand an impact energy of 500 J from sub-zero temperatures of – 30ºC up to 100ºC. Thereby, the research covers a full span of working circumstances, including automotive and aeronautics and their passive safety applications. The results show dependent on the tested temperature significant variations in the amount of absorbed energy. Hence, the attention of product designers and developers is called to consider the temperature-dependent performance, when it comes to dimensioning of product for extreme weather conditions.
Keywords
Agglomerated Cork, Natural Composites, Extreme High and Low Temperatures, High-Energy Impacts, Crashworthiness
Published online 9/20/2019, 7 pages
Copyright © 2019 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: Johannes Wilhelm, Pawel Kaczynski, Mariusz Ptak, Fabio A.O. Fernandes, Ricardo J. Alves de Sousa, Crashworthiness of Agglomerated Cork Under the Influence of Extremely Low and High Temperatures, Materials Research Proceedings, Vol. 14, pp 41-46, 2019
DOI: https://dx.doi.org/10.21741/9781644900413-7
The article was published as article 7 of the book Cork Science and its Applications II
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