Physical and Mechanical Characterization of Several Varieties of Oil Palm Mesocarp Fibers Using Different Cross-Sectional Assumptions

Mejouyo P. W. Huisken; Harzallah O.; Tagne N. R. Sikame; Ndapeu D.; Tchemou G.; Drean J. Y.; Njeugna E.

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Physical and Mechanical Characterization of Several Varieties of Oil Palm Mesocarp Fibers Using Different Cross-Sectional Assumptions

机译：不同横截面假设的几种油棕榈叶纤维纤维的物理和力学表征

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This study focuses on the characterization of plant fibers. Pressed Oil Palm Mesocarp Fibers (OPMFs) coming from different varieties (Dura, Tenera, and Pissifera) are subjected to a unitary tensile test. From the variation of strain energy, the Young's modulus of these fibers is determined considering the evolution of the cross-section model and using Castigliano theorem. Then, we found the error made by considering first that cross-sections are circular constant and then elliptic constant. It is shown that the internal fibers have a Young's modulus higher than those of the periphery. Moreover, the use of the real geometric model of the fiber (variable elliptical cross-section) in the search for the Young's modulus of the fiber highlights an error that is made using the classical hypotheses encountered in the literature (circular and constant cross-section or elliptic and constant cross-section). The implementation of a Kawabata bending test also allowed us to determine the flexural modulus, the elastic recovery and the hysteresis of these OPMFs. Physical parameters such as density and linear density of OPMFs are also determined using gravimetric method.

机译：本研究侧重于植物纤维的表征。来自不同品种（Dura，Tenera和Pissifera）的压制油棕Mesocarp纤维（OPMF）进行单一拉伸试验。根据应变能的变化，考虑到横截面模型的演变和使用Castigliano定理来确定这些纤维的杨氏模量。然后，我们发现通过首先考虑横截面是圆形常数，然后椭圆常数所做的错误。结果表明，内纤维的杨氏模量高于周边。此外，使用光纤（可变椭圆形横截面）的真实几何模型在搜索光纤的杨氏模数上突出了使用文献中遇到的经典假设（圆形和恒定横截面的错误或椭圆形和恒定的横截面）。 kawabata弯曲测试的实施也允许我们确定这些OPMFS的弯曲模量，弹性恢复和滞后。使用重量法确定诸如OPMF的密度和线性密度的物理参数。

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来源
《Journal of natural fibers》 |2021年第3期|175-191|共17页
作者
Mejouyo P. W. Huisken; Harzallah O.; Tagne N. R. Sikame; Ndapeu D.; Tchemou G.; Drean J. Y.; Njeugna E.;
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作者单位

Univ Douala LMP Douala Cameroon|Univ Douala Lab Mech & Appropriate Mat LAMMA Douala Cameroon;

Univ Haute Alsace LPMT Mulhouse France;

Univ Douala Lab Mech & Appropriate Mat LAMMA Douala Cameroon|Univ Dschang IUT FV Bandjoun Ind Syst & Environm Engn Lab LISIE Bandjoun Cameroon;

Univ Douala Lab Mech & Appropriate Mat LAMMA Douala Cameroon|Univ Dschang IUT FV Bandjoun Ind Syst & Environm Engn Lab LISIE Bandjoun Cameroon;

Univ Douala LMP Douala Cameroon|Univ Douala Lab Mech & Appropriate Mat LAMMA Douala Cameroon;

Univ Haute Alsace LPMT Mulhouse France;

Univ Douala LMP Douala Cameroon|Univ Douala Lab Mech & Appropriate Mat LAMMA Douala Cameroon;

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正文语种 eng
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Oil Palm Mesocarp Fibers; Young's modulus; strain; strain energy; Kawabata bending test;

机译：油棕榈叶纤维;杨氏模量;应变;应变能量;Kawabata弯曲试验;

Physical and Mechanical Characterization of Several Varieties of Oil Palm Mesocarp Fibers Using Different Cross-Sectional Assumptions

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