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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Vivet, Alexandre
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (16/16 displayed)
- 2024Mechanical and ultrasound characterizations of aging of blade materials in marine environment
- 2024Tensile Characterization of Single Plant Fibres: a Benchmark Study
- 2024Integrated analysis of materials for offshore wind turbine blades: mechanical and acoustical coupling
- 2020A viscoelastic–viscoplastic model with hygromechanical coupling for flax fibre reinforced polymer compositescitations
- 2019Development and characterization of new carbon/flax hybrid composites
- 2019Effect of hygroscopy on non-impregnated quasi-unidirectional flax reinforcement behaviourcitations
- 2017Improvement of Natural Fiber Composite Materials by Carbon Fiberscitations
- 2016Damage analysis of composites reinforced with Alfa fibers: Viscoelastic behavior and debonding at the fiber/matrix interfacecitations
- 2015Improvement by Nanofibers of Load Transfer in Carbon Fiber Reinforced Compositescitations
- 2014Etude en rupture d'un composite à fibres végétales d'Alfa
- 2014Hybrid carbon nanotube—silica/ polyvinyl alcohol nanocomposites films: preparation and characterisationcitations
- 2013Influence of morphological parameters of a 2D random short fibre composite on its effective elastic properties
- 2012Renforcement des matrices polymères et des matériaux composites par des nanoparticules
- 2004Hysteretic behavior of a CuZnAl single crystal during super elastic shear deformationcitations
- 2002Experimental and numerical determinations of the initial surface of phase transformation under biaxial loading in some polycrystalline shape memory alloys
- 2002What about the yield transformation surface determination (austenite - martensite) with the measurement of austenite and martensite lattice parameters for some shape memory alloys ?
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article
A viscoelastic–viscoplastic model with hygromechanical coupling for flax fibre reinforced polymer composites
Abstract
International audience ; Based on experimental investigations on the influence of water content on time-dependent behaviour of flax reinforced epoxy composites, this paper proposes to model the viscoelastic–viscoplastic behaviour with hygromechanical coupling. From a rheological point of view, the proposed model is a combination of a linear spring (elasticity), a Kelvin–Voigt model (viscoelasticity) and a viscoplastic model described by kinematic hardening in which the evolution of the internal variable is collinear with the plastic deformation. The hygromechanical coupling is obtained via the dependence on water content of all the model parameters according to a power law. The developed model shows a good correlation between experimental data (tensile, creep and relaxation) and numerical predictions of the mechanical behaviour for low water contents (below 4.90%). However, the model shows its limits for high water contents (wc≥4.90%) and high loadings. Indeed, tensile tests have revealed the emergence of a stiffening phenomenon for high loadings according to water content. This phenomenon was not taken into account in the proposed model which could explain its limitations. This assumption is confirmed by comparing the evolution of experimental yield stress with the model prediction.