Impact and fatigue tolerant natural fibre reinforced thermoplastic composites by using non-dry fibres

Farzin Javanshour; Alexandros Prapavesis; Nazanin Pournoori; Guilherme Corrêa Soares; Olli Orell; Tuomas Pärnänen; Mikko Kanerva; Aart Willem Van Vuure; Essi Sarlin

doi:10.1016/j.compositesa.2022.107110

Impact and fatigue tolerant natural fibre reinforced thermoplastic composites by using non-dry fibres

Farzin Javanshour, Alexandros Prapavesis, Nazanin Pournoori, Guilherme Corrêa Soares, Olli Orell, Tuomas Pärnänen, Mikko Kanerva, Aart Willem Van Vuure, Essi Sarlin

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15 Citations (Scopus)

Abstract

This article introduces stiff and tough biocomposites with in-situ polymerisation of poly (methyl methacrylate) and ductile non-dry flax fibres. According to the results, composites processed with non-dry fibres (preconditioned at 50% RH) had comparable quasi-static in-plane shear strength but 42% higher elongation at failure and toughness than composites processed with oven-dried fibres. Interestingly, the perforation energy of flax–PMMA cross-ply composites subjected to low-velocity impact increased up to 100% with non-dry flax fibres. The in-situ impact damage progression on the rear surface of composites was evaluated based on strain and thermal field maps acquired by synchronised high-speed optical and thermal cameras. Impact-induced delamination lengths were investigated with tomography. Non-dry fibres also decreased the tension–tension fatigue life degradation rate of composites up to 21% and altered the brittle failure mode of flax–PMMA to ductile failure dominated by fibre pull-out.

Original language	English
Article number	107110
Journal	Composites Part A: Applied Science and Manufacturing
Volume	161
DOIs	https://doi.org/10.1016/j.compositesa.2022.107110
Publication status	Published - Oct 2022
MoE publication type	A1 Journal article-refereed

Funding

This project is funded by the European Union's Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No 764713-FibreNet. This work made use of Tampere Microscopy Center facilities at Tampere University. The authors thank Bcomp (Fribourg, Switzerland) for supplying the flax fabrics. Farzin Javanshour appreciates the contributions made by Apolline Féré (for fatigue testing) and Quynh Nguyen (for processing of composites). This project is funded by the European Union's Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No 764713-FibreNet. This work made use of Tampere Microscopy Center facilities at Tampere University. The authors thank Bcomp (Fribourg, Switzerland) for supplying the flax fabrics. Farzin Javanshour appreciates the contributions made by Apolline Féré (for fatigue testing) and Quynh Nguyen (for processing of composites).

Keywords

Adhesion
Debonding
Delamination
Thermoplastic matrix

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10.1016/j.compositesa.2022.107110Licence: CC BY

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Javanshour, F., Prapavesis, A., Pournoori, N., Corrêa Soares, G., Orell, O., Pärnänen, T., Kanerva, M., Van Vuure, A. W., & Sarlin, E. (2022). Impact and fatigue tolerant natural fibre reinforced thermoplastic composites by using non-dry fibres. Composites Part A: Applied Science and Manufacturing, 161, Article 107110. https://doi.org/10.1016/j.compositesa.2022.107110

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abstract = "This article introduces stiff and tough biocomposites with in-situ polymerisation of poly (methyl methacrylate) and ductile non-dry flax fibres. According to the results, composites processed with non-dry fibres (preconditioned at 50\% RH) had comparable quasi-static in-plane shear strength but 42\% higher elongation at failure and toughness than composites processed with oven-dried fibres. Interestingly, the perforation energy of flax–PMMA cross-ply composites subjected to low-velocity impact increased up to 100\% with non-dry flax fibres. The in-situ impact damage progression on the rear surface of composites was evaluated based on strain and thermal field maps acquired by synchronised high-speed optical and thermal cameras. Impact-induced delamination lengths were investigated with tomography. Non-dry fibres also decreased the tension–tension fatigue life degradation rate of composites up to 21\% and altered the brittle failure mode of flax–PMMA to ductile failure dominated by fibre pull-out.",

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AU - Orell, Olli

AU - Pärnänen, Tuomas

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AU - Van Vuure, Aart Willem

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AB - This article introduces stiff and tough biocomposites with in-situ polymerisation of poly (methyl methacrylate) and ductile non-dry flax fibres. According to the results, composites processed with non-dry fibres (preconditioned at 50% RH) had comparable quasi-static in-plane shear strength but 42% higher elongation at failure and toughness than composites processed with oven-dried fibres. Interestingly, the perforation energy of flax–PMMA cross-ply composites subjected to low-velocity impact increased up to 100% with non-dry flax fibres. The in-situ impact damage progression on the rear surface of composites was evaluated based on strain and thermal field maps acquired by synchronised high-speed optical and thermal cameras. Impact-induced delamination lengths were investigated with tomography. Non-dry fibres also decreased the tension–tension fatigue life degradation rate of composites up to 21% and altered the brittle failure mode of flax–PMMA to ductile failure dominated by fibre pull-out.

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Impact and fatigue tolerant natural fibre reinforced thermoplastic composites by using non-dry fibres

Abstract

Funding

Keywords

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Interfacial Toughening Strategies for Impact and Fatigue Tolerant Structural Biocomposites

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