Damping behaviour of bio-inspired natural fibre composites

Wilhelm Woigk, Kunal Masania, Silvan Gantenbein, Erik Poloni, André R. Studart

Research output: Contribution to conferenceAbstractScientific

Abstract

Structural materials such as metals and fibre-reinforced plastics are stiff engineering materials used in many industrial fields. However, their high stiffness leads usually to the inability to dissipate energy via vibration damping. Contrarily, compliant materials such as rubbers and soft polymers exhibit an excellent damping behaviour, but lack in stiffness. Natural composites, such as wood, bone and seashells possess both high stiffness and high damping and thus combine properties that are generally mutually exclusive. In this study, the design principles of two biological composites, i.e. nacre and wood, were studied to design composites out of engineering materials which display a damping behaviour like the natural systems and are producible on a larger scale. The dynamic properties of nacre-inspired epoxy and flax fibre-reinforced composites were investigated and compared to structural engineering materials and to the biological materials served for the inspiration.

Original languageEnglish
Number of pages1
Publication statusPublished - 2019
Externally publishedYes
Event18th European Conference on Composite Materials, ECCM 2018 - Athens, Greece
Duration: 24 Jun 201828 Jun 2018

Conference

Conference18th European Conference on Composite Materials, ECCM 2018
CountryGreece
CityAthens
Period24/06/1828/06/18

Keywords

  • Bio-inspired
  • Dynamic Mechanical Analysis
  • Natural fibres
  • Platelet-reinforced composites

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