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Communication Dans Un Congrès Année : 2024

Influence of strain rate on the behavior of natural fiber reinforced thermoplastic composites, experimental and numerical approaches.

Pablo Navarro
Steven Marguet
Olivier de Almeida
Jean-François Ferrero

Résumé

These studies aim to explore the behavior of natural fiber-reinforced thermoplastic matrix composites by examining their response to strain rate during traction, focusing particularly on the longitudinal elastic modulus variation in 0° composites and in plane shear elastic modulus for the ±45° laminates. Utilizing bamboo, flax, and basalt fibers as unidirectional reinforcements and Arkema's semi-crystalline polyamide-11 and ELIUM amorphous resin as matrices, experiments are conducted to characterize the materials. Static and dynamic tensile tests are performed using advanced equipment. Numerous explicit numerical simulations are iterated to match experimental data. Results reveal that composites with 0° plies show limited sensitivity to strain rates below 100 s-1, with bamboo and flax composites exhibiting little change in Young's modulus, while basalt-reinforced composites exhibit a slight increase. However, composites with ±45° stacking display heightened sensitivity, primarily influenced by the resin. This comprehensive investigation provides insights into the complex behavior of these composites under different loading conditions, guiding their optimization and application.

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Matériaux
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Dates et versions

hal-04696572 , version 1 (13-09-2024)

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  • HAL Id : hal-04696572 , version 1

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Franck Gouillou, Pablo Navarro, Steven Marguet, Olivier de Almeida, Jean-François Ferrero. Influence of strain rate on the behavior of natural fiber reinforced thermoplastic composites, experimental and numerical approaches.. ECCM21 - the 21st European Conference on Composite Materials, Jul 2024, Nantes, France. pp.79-85. ⟨hal-04696572⟩
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