Detail publikace

Application of Carbon–Flax Hybrid Composite in High Performance Electric Personal Watercraft

ZOUHAR, J. SLANÝ, M. SEDLÁK, J. JOSKA, Z. POKORNÝ, Z. BARÉNYI, I. MAJERÍK, J. FIALA, Z.

Originální název

Application of Carbon–Flax Hybrid Composite in High Performance Electric Personal Watercraft

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

Within the herein presented research, we studied the applicability of flax fabrics for composite parts in personal watercrafts in order to enhance damping of vibrations from the engine and noise reduction (which is relatively high for contemporary carbon constructions). Since the composite parts are intended to be exposed to humid environments requiring high levels of mechanical properties, a carbon–flax composite was selected. Samples of carbon, fiberglass, flax, and hybrid carbon–flax twill and biax fabrics were subjected to tensile and three-point bending tests. The mechanical properties were also tested after exposure of the samples to a humid environment. Damping was assessed by vibration and noise measurements directly on the complete float for samples as well as real parts. The hybrid carbon–flax material exhibited lower values of tensile strength than the carbon material (760 MPa compared to 463 MPa), but, at the same time, significantly higher than the other tested materials, or flax itself (115 MPa for a twill fabric). A similar trend in the results was observed for the three-point bending tests. Vibration tests and noise measurements showed reductions in vibration amplitude and frequency when using the carbon–flax hybrid material; the frequency response function for the watercraft part assembled from the hybrid material was 50% lower than for that made of carbon. Testing of samples located in a humid environment showed the necessity of surface treatment to prevent moisture absorption (mechanical properties were reduced at minimum by 28%). The tests confirmed that the hybrid material is satisfactory in terms of strength and its contribution to noise and vibration damping.

Klíčová slova

flax; hybrid composite; personal watercraft

Autoři

ZOUHAR, J.; SLANÝ, M.; SEDLÁK, J.; JOSKA, Z.; POKORNÝ, Z.; BARÉNYI, I.; MAJERÍK, J.; FIALA, Z.

Vydáno

26. 4. 2022

Nakladatel

MDPI

Místo

Basel, Switzerland

ISSN

2073-4360

Periodikum

Polymers

Ročník

14

Číslo

9

Stát

Švýcarská konfederace

Strany od

1

Strany do

17

Strany počet

17

URL

https://www.mdpi.com/2073-4360/14/9/1765

Plný text v Digitální knihovně

http://hdl.handle.net/11012/204163

BibTex

@article{BUT177657,
  author="Jan {Zouhar} and Martin {Slaný} and Josef {Sedlák} and Zdeněk {Joska} and Zdeněk {Pokorný} and Igor {Barényi} and Jozef {Majerík} and Zdeněk {Fiala}",
  title="Application of Carbon–Flax Hybrid Composite in High Performance Electric Personal Watercraft",
  journal="Polymers",
  year="2022",
  volume="14",
  number="9",
  pages="1--17",
  doi="10.3390/polym14091765",
  issn="2073-4360",
  url="https://www.mdpi.com/2073-4360/14/9/1765"
}