At IRDL, Mathias Ziapkoff has modeled the viscoelastic properties of a bio-based composite to predict its damping.
Mathias Ziapkoff, chercheur·e au sein de IRDL (Institut National Polytechnique de Bretagne).
Thèse soutenue en 2023 à l'école doctorale École doctorale Sciences Pour l'Ingénieur (Lorient ; 2022-....).
Référencée dans le réseau ABES/STAR, cette thèse répond aux critères de rigueur de l'enseignement supérieur français.
Research on bio-based composite materials is rapidly expanding, and the work of Mathias Ziapkoff at IRDL makes a significant contribution to this evolving field. By focusing on a composite made of epoxy and flax fibers, Ziapkoff meticulously explores how these materials behave under varying environmental conditions. The preliminary results of his studies show that immersion in different environments can alter the mechanical properties of the composites, raising crucial questions about their durability and application in diverse settings. This research is particularly relevant in a context where the need to develop more eco-friendly materials is pressing.
Ziapkoff's work highlights the importance of understanding the degradation mechanisms of natural fiber composites. For example, it has been observed that seawater has a less severe impact on mechanical properties than distilled water. This could be due to the presence of chemical agents in seawater that limit the diffusion of water into the composite, which is a fascinating aspect to explore. These findings pave the way for chemical treatments that could enhance the water resistance of bio-based composites, thus allowing for broader use in maritime or coastal applications.
Ziapkoff's recommendations include exploring the hybridization of natural fibers with synthetic fibers. This approach could not only improve the mechanical properties of the composites but also their durability. Indeed, hybridization could allow for the combination of the advantages of natural fibers, such as their light weight and low carbon footprint, with those of synthetic fibers, which often offer increased strength. In a context where the sustainability of materials is increasingly scrutinized, these research avenues are promising for the development of more environmentally friendly solutions.
It is essential to consider how these advancements can be translated into concrete applications. Policymakers should consider policies that encourage innovation in the composite materials sector, particularly by supporting research and development of new chemical treatments and hybridization techniques. For example, grants for applied research projects or partnerships with industry could foster the emergence of new technologies. By investing in these areas, we could not only improve the performance of bio-based materials but also contribute to a more sustainable future.
The implications of this research extend beyond the laboratory and could have a significant impact on the composite materials industry, particularly in sectors where sustainability is paramount. For instance, in the construction sector, the use of bio-based composites could reduce the carbon footprint of buildings while providing satisfactory mechanical performance. Similarly, in the automotive industry, the integration of these materials could contribute to the lightness of vehicles, thereby promoting a reduction in fuel consumption.
Ziapkoff's thesis, validated by the ABES/STAR network, demonstrates an academic rigor that enhances the credibility of his results. This validation is crucial, as it ensures that the methods and conclusions drawn from his research are solid and reliable. Furthermore, recognition by renowned research organizations can open doors to international collaborations, allowing for the exchange of ideas and techniques with other researchers in the field.
In summary, the work of Mathias Ziapkoff is not limited to a simple academic study but is part of a broader dynamic of research and innovation. It underscores the importance of an interdisciplinary approach, where materials science, engineering, and sustainability converge to create concrete solutions. By continuing to explore these avenues, we could not only transform our understanding of bio-based composite materials but also contribute to building a future where innovation and sustainability coexist harmoniously.
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Sources et accès
Mathias Ziapkoff. Caractérisation et modélisation des propriétés viscoélastiques d'un pli époxy/fibres de lin pour prédire l'amortissement des structures composites biosourcées. Génie mécanique [physics.class-ph]. Université de Bretagne Sud, 2023. Français. ⟨NNT : 2023LORIS662⟩. ⟨tel-04486096⟩