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http://hdl.handle.net/10397/88145
Title: | Exploring natural palm fiber's mechanical performance using multi-scale fractal structure simulation | Authors: | Wang, YH Zhang, TH Jing, LX Deng, PH Zhao, SM Guan, D |
Issue Date: | 2020 | Source: | Bioresources, 2020, v. 15, no. 3, p. 5787-5800 | Abstract: | Palm fiber, a type of natural multicellular fiber, exhibits distinct mechanical properties, such as excellent elasticity, higher fracture energy, and desirable stretch ability. To reveal the structure-property relationship, a multi-scale layered fractal theoretical model was introduced to investigate the tensile behavior of palm fibers at different scales. A three-circle model was established and used to simulate the hierarchical organization of palm fibers. The palm fibers consisted of cellulose molecular chains, fibril filaments, microfibrils, and cells. Moreover, the characteristics of stress, fracture energy, and Young's modulus on different scales were calculated and verified by tensile testing and atomic force microscopy (AFM). The results revealed that the fractal model effectively decoupled the contributions of different scales to the tensile properties. In particular, the microfibril mainly influenced the stiffness, whereas the cell determined the toughness of palm fibers. The findings of the current study can be utilized to improve the design and preparation of fiber-based nanomaterials. | Keywords: | Fractal theory Layered structures Mechanical properties Palm fiber |
Publisher: | North Carolina State University, College of Natural Resources, Department of Wood and Paper Science | Journal: | Bioresources | EISSN: | 1930-2126 | DOI: | 10.15376/biores.15.3.5787-5800 | Rights: | Authors retain rights to their material, which, upon acceptance by the journal, is uploaded and made public on the Internet. The journal retains no copyright. Users have the right to read, download, copy, distribute, print, search, or link to the full texts of articles in the journal, and users can use, reuse, and build upon the material in the journal for non-commercial purposes as long as attribution is given when appropriate or necessary. The following publication Wang, Y., Zhang, T., Jing, L., Deng, P., Zhao, S., and Guan, D. (2020). "Exploring natural palm fiber’s mechanical performance using multi-scale fractal structure simulation," BioRes. 15(3), 5787-5800 is available at https://dx.doi.org/10.15376/biores.15.3.5787-5800 |
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