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Wyszukujesz frazę "natural fiber composites" wg kryterium: Temat

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    Wyświetlanie 1-3 z 3
    Tytuł:
    Effect of water absorption on the mechanical properties of flax fiber reinforced epoxy composites
    Autorzy:
    Huner, U
    Powiązania:
    https://bibliotekanauki.pl/articles/101996.pdf
    Data publikacji:
    2015
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    natural fiber
    mechanical properties
    epoxy composites
    Opis:
    Flax fiber reinforced epoxy composites were subjected to water immersion tests in order to study the effects of water absorption on the mechanical properties. Epoxy composites specimens containing 0, 1, 5 and 10% fiber weight were prepared. Water absorption tests were conducted by immersing specimens in a deionized water bath at 25 °C and 90 °C for different time durations. The tensile and flexural properties of water immersed specimens subjected to both aging conditions were evaluated and compared alongside dry composite specimens. The percentage of moisture uptake increased as the fiber volume fraction increased due to the high cellulose content. The tensile and flexural properties of reinforced epoxy specimens were found to decrease with increase in percentage moisture uptake. Moisture induced degradation of composite samples was significant at elevated temperature.
    Źródło:
    Advances in Science and Technology. Research Journal; 2015, 9, 26; 1-6
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Comparative Evaluation of the Selected Mechanical Properties of Polymer Composites Reinforced with Glass and Hemp Fabrics
    Autorzy:
    Scheibe, Mieczysław
    Bryll, Katarzyna
    Brożek, Piotr
    Czarnecka-Komorowska, Dorota
    Sosnowski, Mariusz
    Grabian, Janusz
    Garbacz, Tomasz
    Powiązania:
    https://bibliotekanauki.pl/articles/2201912.pdf
    Data publikacji:
    2023
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    mechanical properties
    composites
    polymer composites
    laminate
    laminate reinforced with natural fiber
    natural fiber reinforcement
    hemp fibre
    hemp fabric
    HFRP
    HFRP composites
    Opis:
    The requirements of sustainable development of the economy force the replacement of the previously used composite materials in the production of elements not only with lighter, but also more durable materials. These materials should meet more and more stringent environmental protection requirements. This study aimed to determine the possibility of introducing a polymer structural composite reinforced with natural fiber into the structure of the hull of vessels instead of the commonly used polymer-glass composite (GFRP). The hemp fabric was used to reinforce the polymer matrix. The compared analysis of the physical properties of the classic GFRP composites with obtained new HFRP composites, i.e. density, impact strength, as well as resistance to static tensile and bending, was carried out. As a result of the performed analyzes and comparison of the results with the standards, it can be concluded that it is possible to apply a polymer-hemp (HFRP) composite for the shipbuilding and boatbuilding needs – limited to plating elements with medium and low strength requirements.
    Źródło:
    Advances in Science and Technology. Research Journal; 2023, 17, 2; 268--278
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Study of the Performance of Natural Fiber Reinforced Composites for Wind Turbine Blade Applications
    Autorzy:
    Batu, Temesgen
    Lemu, Hirpa G
    Sirhabizuh, Belete
    Powiązania:
    https://bibliotekanauki.pl/articles/102545.pdf
    Data publikacji:
    2020
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    natural fiber
    reinforced composites
    wind turbine blade
    Qblade
    włókno naturalne
    wzmocniony kompozyt
    łopatka turbiny wiatrowej
    Opis:
    The availability of some form of energy is essential for the human survival and social development. However, the way energy has been generated within the last century has brought forward the quest for the generation of energy without polluting the environment, which is nowadays considered to be the greatest global challenge. The materials used for wind turbine blades can be classified under this challenge of polluting the environment. One of the materials expected to reduce this problem is natural fiber reinforced composite (FRC). Thus, the focus of this paper was to evaluate the potential of different natural FRC materials for small wind turbine blade application. Eleven different natural fibers reinforced composite in epoxy resin were studied. A modified Halphin-Tsai semi-empirical model was used to compute the physical properties of the composites, since it has a good agreement with the experimental results. Stress, deformation, and weight of wind turbine blade under different loadings were analyzed aimed to search for a fiber type that may extend the life span of the blade. Finally, flap wise and edge wise, the longitudinal and torsional natural frequencies were computed numerically by using the finite element method in the Qblade software (QFEM) under different mode types and the effects were analysed. Upon comparing the results with a common composite material for wind turbine blade (E-glass/epoxy), it was observed that the selected natural fiber composites have equivalent and better mechanical performance. The environmental friendliness of natural fibers, i.e. biodegradability, constitutes their advantage as materials of wind turbine blades.
    Źródło:
    Advances in Science and Technology. Research Journal; 2020, 14, 2; 67-75
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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