Tensile Behavior of Geometrically Irregular Bagasse Fiber
In the present work, an investigation on the surface topography and geometry variation of bagasse fibers was correlated with their mechanical properties via image analysis. The fibers were tested under a universal tensile testing machine and the diameter of the fibers was calculated using images obt...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-05-01
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| Series: | Applied Mechanics |
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| Online Access: | https://www.mdpi.com/2673-3161/2/2/17 |
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| author | Md Shahnewaz Bhuiyan Muhommad Azizur Rahman Md Shahriar Farabi Md Mahedi Hasan |
| author_facet | Md Shahnewaz Bhuiyan Muhommad Azizur Rahman Md Shahriar Farabi Md Mahedi Hasan |
| author_sort | Md Shahnewaz Bhuiyan |
| collection | DOAJ |
| description | In the present work, an investigation on the surface topography and geometry variation of bagasse fibers was correlated with their mechanical properties via image analysis. The fibers were tested under a universal tensile testing machine and the diameter of the fibers was calculated using images obtained in a digital microscope. Furthermore, surface characterization and quantification were also performed using images obtained via SEM. The results showed that the surface roughness of alkali-treated bagasse fiber increased compared to that of the untreated one. Moreover, it was observed that the diameter variation of bagasse fiber along its length and among different fibers is not only variable but also unpredictable. The tensile test results revealed that bagasse fibers showed lower stress at a rupture with considerable scatter. It can be inferred that the synergistic effect of thick bagasse fiber, bagasse fiber diameter variations along its length and among fibers, and the fiber fracture mechanism establishes a local condition for fracture and resulted in such variations in tensile properties. Finally, the results clearly showed that the two-parameter Weibull fit the experimental data fairly well (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msup><mi>R</mi><mn>2</mn></msup><mo>=</mo><mn>0.97</mn></mrow></semantics></math></inline-formula>). The Weibull modulus <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mrow><mo>(</mo><mi>m</mi><mo>)</mo></mrow></mrow></semantics></math></inline-formula> was found to be 1.7, indicating that the strength distribution is high. |
| first_indexed | 2024-03-10T11:22:09Z |
| format | Article |
| id | doaj.art-91849f72dbf64f8dba1e0062d4fa111f |
| institution | Directory Open Access Journal |
| issn | 2673-3161 |
| language | English |
| last_indexed | 2024-03-10T11:22:09Z |
| publishDate | 2021-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Mechanics |
| spelling | doaj.art-91849f72dbf64f8dba1e0062d4fa111f2023-11-21T19:58:41ZengMDPI AGApplied Mechanics2673-31612021-05-012227428810.3390/applmech2020017Tensile Behavior of Geometrically Irregular Bagasse FiberMd Shahnewaz Bhuiyan0Muhommad Azizur Rahman1Md Shahriar Farabi2Md Mahedi Hasan3Department of Mechanical and Production Engineering, Ahsanullah University of Science and Technology, Dhaka 1208, BangladeshDepartment of Mechanical and Production Engineering, Ahsanullah University of Science and Technology, Dhaka 1208, BangladeshDepartment of Mechanical and Production Engineering, Ahsanullah University of Science and Technology, Dhaka 1208, BangladeshDepartment of Mechanical and Production Engineering, Ahsanullah University of Science and Technology, Dhaka 1208, BangladeshIn the present work, an investigation on the surface topography and geometry variation of bagasse fibers was correlated with their mechanical properties via image analysis. The fibers were tested under a universal tensile testing machine and the diameter of the fibers was calculated using images obtained in a digital microscope. Furthermore, surface characterization and quantification were also performed using images obtained via SEM. The results showed that the surface roughness of alkali-treated bagasse fiber increased compared to that of the untreated one. Moreover, it was observed that the diameter variation of bagasse fiber along its length and among different fibers is not only variable but also unpredictable. The tensile test results revealed that bagasse fibers showed lower stress at a rupture with considerable scatter. It can be inferred that the synergistic effect of thick bagasse fiber, bagasse fiber diameter variations along its length and among fibers, and the fiber fracture mechanism establishes a local condition for fracture and resulted in such variations in tensile properties. Finally, the results clearly showed that the two-parameter Weibull fit the experimental data fairly well (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msup><mi>R</mi><mn>2</mn></msup><mo>=</mo><mn>0.97</mn></mrow></semantics></math></inline-formula>). The Weibull modulus <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mrow><mo>(</mo><mi>m</mi><mo>)</mo></mrow></mrow></semantics></math></inline-formula> was found to be 1.7, indicating that the strength distribution is high.https://www.mdpi.com/2673-3161/2/2/17bagasse fiberWeibull distributionmechanical propertiesscanning electron microscopy |
| spellingShingle | Md Shahnewaz Bhuiyan Muhommad Azizur Rahman Md Shahriar Farabi Md Mahedi Hasan Tensile Behavior of Geometrically Irregular Bagasse Fiber Applied Mechanics bagasse fiber Weibull distribution mechanical properties scanning electron microscopy |
| title | Tensile Behavior of Geometrically Irregular Bagasse Fiber |
| title_full | Tensile Behavior of Geometrically Irregular Bagasse Fiber |
| title_fullStr | Tensile Behavior of Geometrically Irregular Bagasse Fiber |
| title_full_unstemmed | Tensile Behavior of Geometrically Irregular Bagasse Fiber |
| title_short | Tensile Behavior of Geometrically Irregular Bagasse Fiber |
| title_sort | tensile behavior of geometrically irregular bagasse fiber |
| topic | bagasse fiber Weibull distribution mechanical properties scanning electron microscopy |
| url | https://www.mdpi.com/2673-3161/2/2/17 |
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