American Journal of Mechanical and Materials Engineering

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Influence of Moisture on the Mechanical Properties of Rhecktophyllum camerunense Vegetable Fiber

Received: 28 June 2023    Accepted: 13 July 2023    Published: 27 July 2023
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Abstract

Plant fibers are become an environmentally friendly substitute to glass fibers for the reinforcement of composites, particularly in automotive and civil engineering. The fundamental difference between these two types of fibers is their behavior to the humidity. Plant fibers absorb moisture when they are used as reinforcement in composite materials and drawback their mechanical properties. It is important to analyze hygromechanical behavior of plant fibers in order to treat them before using in composite material as reinforcement. The treatment can be electrically, physically, chemically and other. Indeed, the RC fibers used in this study come from the roots of RC collected in central Cameroon. Fresh ones have been selected for this purpose. Some samples were submitted to hygroscopic ageing in an environmental enclosure of 23%, 54% and 75% relative humidities at 23±1°C and others immersed in distilled water (100%). Hygroscopic ageing is noted by the saturation of the fibers after several weighing on a balance until the constant mass is obtained. This experiment followed steps described by NF EN ISO 483: 2006-01 standard. After that tensile test was done on those saturated individual fibers according to ASTM D 3397-75 standard. Twenty specimens were used to evaluate elastic properties of RC at each hygroscopic condition. The qualitative analysis of behavior curve shows that no matter the relative humidity, the RC fiber presents a toughness behavior and elastic material, characterized by a relatively prevalent viscoelastic area and a great elongation at break. However, we note a decrease of the stress at break and decrease of the elastic modulus for all humidities.

DOI 10.11648/j.ajmme.20230702.12
Published in American Journal of Mechanical and Materials Engineering (Volume 7, Issue 2, June 2023)
Page(s) 16-21
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

RC Fiber, Humidity, Water Absorption, Tensile Test

References
[1] J Summerscales., N. P. J. Dissanayake, A. S Virk, and W. A. “Hall review of bast fibers and their composites. Part I-Fibers as reinforcements“, Compos. Part A Appl. Sci. Manuf. 41, 1329–1335. doi: 10.1016/j.composite, 2010.06.001.
[2] A. Béakou, R. Ntenga, J. Lepetit, A. Atangana, and L. O. Ayina. “Physico-chemical and microstructural characterization of Rhectophyllum camerunense plant fiber”. Composites Part A: Applied Science and Manufacturing, 39 (1): 6774, 2008.
[3] E. Betene, B. Noutegomo, A. Atangana. “Study of the diffusion behavior of water vapor sorption in natural fiber: Rhecktophyllum camerunense“, Indian Journal of Engineering, 15, 143-150, 2018.
[4] E. Betene, “Etude des propriétés mécaniques et thermiques du plâtre renforcé de fibres végétales tropicales “. Ph.D thesis. Université Blaise Pascal - Clermont-Ferrand II. 2012.
[5] R. Ntenga, “Modélisation Multi-échelles et Caractérisation de l’Anisotropie Elastique de Fibres Végétales pour le Renforcement de Matériaux Composites“. PhD thesis, Université Blaise Pascal de Clermont Ferrand, 2007.
[6] B. Noutegomo, E. Betene, A. Atangana. “Study of the diffusion behavior of water vapor sorption in natural fiber composite: Plaster/Rhecktophyllum camerunense“, MOJ App Bio Biomech.; 3 (1): 12‒16. DOI: 10.15406/mojabb.2019.03.00093, 2019.
[7] A. K. Bledzki, and J. Gassan, “Composites reinforced with cellulose based fibers“, Prog. Polym. Sci. 24, 221–274. doi: 10.1016/S0079-6700(98)00018-5, 1999.
[8] A. Célino, S. Fréour, F. Jacquemin and P. Casari, “Characterization and modeling of the moisture diffusion behaviour of natural fibres.” J. Appl. Polym. Sci. 130, 297–306. doi: 10.1002/app.39148, 2013.
[9] H. N. Dhakal, Z. Y. Zhang and M. O. W. Richardson, “Effect of water absorption on the mechanical properties of hemp fibre reinforced unsaturated polyester composites“, Compos. Sci. Technol. 67, 1674–1683. doi: 10.1016/j.compscitech.2006.06.019, 2007.
[10] V. Placet, O. Cisse and L. Boubakar, “Influence of environmental relative humidity on the tensile and rotational behaviour of hemp fibres“, J. Mater. Sci. 47, 3435–3446. doi: 10.1007/s10853-011-6191-3, 2012.
[11] M. C. Symington, W. M. Banks, W. O., R. A. David and Pethrick, “Tensile testing of cellulose based natural fibers for structural composite applications“, J. Compos. Mater. 43, 1083–1108. doi: 10.1177/0021998308097740, 2009.
[12] G. C. Davies., and D. M. Bruce, “Effect of environmental relative humidity and damage on the tensile properties of flax and nettle fibers“, Text. Res. J. 68, 623–629. doi: 10.1177/004051759806800901, 1998.
[13] T. N. Ho and A. D. Ngo, “Influence of temperature and humidity on the tensile strength and stiffness of hemp and coir fibers“, in Proceeding of the 5th International Canadian Composite Conference, UBC, Vancouver., 2005.
[14] Agnès Roudier, “Analyse multi-échelles du comportement hygro-mécanique des fibres de lin“, Autre. Université Blaise Pascal - Clermont-Ferrand II, Français, 2012.
[15] V. C. A. Cruz, M. M. S. Nóbrega, W. P. Silva, L. H. Carvalho, A. G. B., “Lima. An experimental study of water absorption in polyester composites reinforced with macambira natural fiber“, Mat.-wiss. u. Werkstofftech. 42 (11), 979–984, 2011.
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    Noutegomo Boris, Betene Ebanda Fabien, Atangana Ateba. (2023). Influence of Moisture on the Mechanical Properties of Rhecktophyllum camerunense Vegetable Fiber. American Journal of Mechanical and Materials Engineering, 7(2), 16-21. https://doi.org/10.11648/j.ajmme.20230702.12

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    ACS Style

    Noutegomo Boris; Betene Ebanda Fabien; Atangana Ateba. Influence of Moisture on the Mechanical Properties of Rhecktophyllum camerunense Vegetable Fiber. Am. J. Mech. Mater. Eng. 2023, 7(2), 16-21. doi: 10.11648/j.ajmme.20230702.12

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    AMA Style

    Noutegomo Boris, Betene Ebanda Fabien, Atangana Ateba. Influence of Moisture on the Mechanical Properties of Rhecktophyllum camerunense Vegetable Fiber. Am J Mech Mater Eng. 2023;7(2):16-21. doi: 10.11648/j.ajmme.20230702.12

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  • @article{10.11648/j.ajmme.20230702.12,
      author = {Noutegomo Boris and Betene Ebanda Fabien and Atangana Ateba},
      title = {Influence of Moisture on the Mechanical Properties of Rhecktophyllum camerunense Vegetable Fiber},
      journal = {American Journal of Mechanical and Materials Engineering},
      volume = {7},
      number = {2},
      pages = {16-21},
      doi = {10.11648/j.ajmme.20230702.12},
      url = {https://doi.org/10.11648/j.ajmme.20230702.12},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajmme.20230702.12},
      abstract = {Plant fibers are become an environmentally friendly substitute to glass fibers for the reinforcement of composites, particularly in automotive and civil engineering. The fundamental difference between these two types of fibers is their behavior to the humidity. Plant fibers absorb moisture when they are used as reinforcement in composite materials and drawback their mechanical properties. It is important to analyze hygromechanical behavior of plant fibers in order to treat them before using in composite material as reinforcement. The treatment can be electrically, physically, chemically and other. Indeed, the RC fibers used in this study come from the roots of RC collected in central Cameroon. Fresh ones have been selected for this purpose. Some samples were submitted to hygroscopic ageing in an environmental enclosure of 23%, 54% and 75% relative humidities at 23±1°C and others immersed in distilled water (100%). Hygroscopic ageing is noted by the saturation of the fibers after several weighing on a balance until the constant mass is obtained. This experiment followed steps described by NF EN ISO 483: 2006-01 standard. After that tensile test was done on those saturated individual fibers according to ASTM D 3397-75 standard. Twenty specimens were used to evaluate elastic properties of RC at each hygroscopic condition. The qualitative analysis of behavior curve shows that no matter the relative humidity, the RC fiber presents a toughness behavior and elastic material, characterized by a relatively prevalent viscoelastic area and a great elongation at break. However, we note a decrease of the stress at break and decrease of the elastic modulus for all humidities.},
     year = {2023}
    }
    

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  • TY  - JOUR
    T1  - Influence of Moisture on the Mechanical Properties of Rhecktophyllum camerunense Vegetable Fiber
    AU  - Noutegomo Boris
    AU  - Betene Ebanda Fabien
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    Y1  - 2023/07/27
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    N1  - https://doi.org/10.11648/j.ajmme.20230702.12
    DO  - 10.11648/j.ajmme.20230702.12
    T2  - American Journal of Mechanical and Materials Engineering
    JF  - American Journal of Mechanical and Materials Engineering
    JO  - American Journal of Mechanical and Materials Engineering
    SP  - 16
    EP  - 21
    PB  - Science Publishing Group
    SN  - 2639-9652
    UR  - https://doi.org/10.11648/j.ajmme.20230702.12
    AB  - Plant fibers are become an environmentally friendly substitute to glass fibers for the reinforcement of composites, particularly in automotive and civil engineering. The fundamental difference between these two types of fibers is their behavior to the humidity. Plant fibers absorb moisture when they are used as reinforcement in composite materials and drawback their mechanical properties. It is important to analyze hygromechanical behavior of plant fibers in order to treat them before using in composite material as reinforcement. The treatment can be electrically, physically, chemically and other. Indeed, the RC fibers used in this study come from the roots of RC collected in central Cameroon. Fresh ones have been selected for this purpose. Some samples were submitted to hygroscopic ageing in an environmental enclosure of 23%, 54% and 75% relative humidities at 23±1°C and others immersed in distilled water (100%). Hygroscopic ageing is noted by the saturation of the fibers after several weighing on a balance until the constant mass is obtained. This experiment followed steps described by NF EN ISO 483: 2006-01 standard. After that tensile test was done on those saturated individual fibers according to ASTM D 3397-75 standard. Twenty specimens were used to evaluate elastic properties of RC at each hygroscopic condition. The qualitative analysis of behavior curve shows that no matter the relative humidity, the RC fiber presents a toughness behavior and elastic material, characterized by a relatively prevalent viscoelastic area and a great elongation at break. However, we note a decrease of the stress at break and decrease of the elastic modulus for all humidities.
    VL  - 7
    IS  - 2
    ER  - 

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Author Information
  • Laboratory of Mechanic, University of Douala, Douala, Cameroon; National Higher Polytechnic Institute, Department of Mechanical and Industrial Engineering, Universality of Bamenda, Bamenda, Cameroon

  • Laboratory of Mechanic, University of Douala, Douala, Cameroon

  • Laboratory of Mechanic, University of Douala, Douala, Cameroon

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