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Communication Dans Un Congrès Année : 2022

Viscoelastic properties of plant fibers - Dynamic analysis and nanoindentation tests

Résumé

It is now established that plant fibers are suitable reinforcements to replace or to complete synthetic fibers for composite applications. They have many well-known advantages such as being renewable, biodegradable and having high specific mechanical properties and intrinsic damping properties that can impart attractive benefits to composite materials. When compared to glass and carbon fibers reinforced polymer composites, PFCs exhibit generally higher damping properties. This is commonly attributed to the polymeric nature of the fibers. It could also result from their hierarchical structure and microstructural specificities. Indeed, damping in composite materials is induced by several microscopic level mechanisms related to the viscoelasticity of both matrix and fibers, but also by the fiber/matrix interface and the friction between fibers inside bundles or between layers. The presence of lumen could also play a role. At this stage, the damping source is not well identified, and the design and the optimization of composites, for structural applications, are then difficult. A better knowledge of the physical phenomena involved is therefore necessary.
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hal-03869641 , version 1 (21-11-2023)

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  • HAL Id : hal-03869641 , version 1

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Vincent Placet, Pauline Butaud, Fanny Pelisson, Taiqu Liu, Yves Gaillard, et al.. Viscoelastic properties of plant fibers - Dynamic analysis and nanoindentation tests. The Fiber Society's spring 2022 Conference, May 2022, Leuven, Belgium. pp.46. ⟨hal-03869641⟩
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