Effect of the Fiber Equivalent Diameter on the Elastic Modulus of Eucalyptus Fibers
| Autor: | Sergio Neves Monteiro, Caroline Gomes de Oliveira, Noan Tonini Simonassi, Frederico Muylaert Margem, Anderson de Paula Barbosa |
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| Rok vydání: | 2016 |
| Předmět: |
010302 applied physics
Work (thermodynamics) Materials science Mechanical Engineering Glass fiber 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Eucalyptus Mechanics of Materials 0103 physical sciences Fracture (geology) General Materials Science Hydraulic diameter Fiber Composite material 0210 nano-technology Elastic modulus Weibull distribution |
| Zdroj: | Materials Science Forum. 869:396-401 |
| ISSN: | 1662-9752 |
| Popis: | Environmental, economical, societal and technical advantages are today favoring natural lignocellulosic fibers over glass fiber. However, natural fibers are not as uniform in their dimension and properties as compared to synthetic ones. In recent works, it was found that the variation in strength could be correlated to the diameter for several lignocellulosic fibers, including that obtained from the eucalyptus wood. The present work investigated a possible correlation of the diameter with changes in the elastic modulus of eucalyptus wood fibers. Precise measurements of the equivalent diameter, conducted in a profile projector, were correlated with the elastic modulus by means of the Weibull statistic analysis. The results showed that an inverse correlation with the diameter applies for the elastic modulus with a reasonable degree of precision. SEM observation of the eucalyptus fiber, both it its structure and fracture aspects, strongly indicates that defects and microfibrils participation could be responsible for the inverse correlation. |
| Databáze: | OpenAIRE |
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