The Influence of Location along the Pseudostem on Enset Fiber Physio-Mechanical Properties: Application of Weibull Distribution Statistics

APPLIED SCIENCES-BASEL(2022)

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摘要
Enset bundle fibers were divided lengthwise into four sections from bottom to top and the sections' physio-mechanical parameters were studied and compared. The four equal fiber sections from the bottom were 0-375 mm (EV-I), 375-750 mm (EV-II), 750 mm-1125 mm (EV-III), and 1125-1500 mm (EV-IV). The mass distribution, cross-sectional area, linear density, and diameter all decreased along the fiber sections from bottom to top. The CIE Lab-color values of each fiber section were also examined, and the L* value for EV-II fiber section was higher. In terms of mechanical properties, the Enset bundle fiber's tensile strength and work of rupture were analyzed, and both increased by 25% from the lower fiber section to the second fiber section (EV-1 to EV-II) along the length before decreasing significantly at the top sections. The investigation indicated that a higher Weibull modulus and tensile strength characteristics for EV-II were recorded while a low Weibull modulus and low strength characteristics of the Enset bundle fiber section EV-IV were observed. The investigation of Weibull distribution variability in the EV-IV fiber location was also confirmed using one-way ANOVA. Overall, the present study investigates the impact of fiber position along the plant stem on the mechanical and physical properties of Enset bundle fibers which can be used as an input for the optimization of unidirectional composites.
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关键词
Enset bundle fiber, fiber's tensile strength, fiber sections, work of rupture, Weibull modulus
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