Influence of powdered bamboo filler content on the tensile strength and fatigue life of epoxy composites
The aim of this study is to evaluate the influence of reinforcing powdered bamboo filler (PBF) on the mechanical and fatigue properties of epoxy-based polymer composites, with a focus on balancing void content and tensile strength. Epoxy composites were fabricated by incorporating varying content of...
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IOP Publishing
2025-01-01
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| Series: | Materials Research Express |
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| Online Access: | https://doi.org/10.1088/2053-1591/adef9e |
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| author | Chaiki Malakar Hrishikesh Dutta Sumit Bhowmik Ravivarman R Mridusmita Roy Choudhury |
| author_facet | Chaiki Malakar Hrishikesh Dutta Sumit Bhowmik Ravivarman R Mridusmita Roy Choudhury |
| author_sort | Chaiki Malakar |
| collection | DOAJ |
| description | The aim of this study is to evaluate the influence of reinforcing powdered bamboo filler (PBF) on the mechanical and fatigue properties of epoxy-based polymer composites, with a focus on balancing void content and tensile strength. Epoxy composites were fabricated by incorporating varying content of PBF (2.5%, 5%, 7.5%, 10%, and 12.5% by weight) using casting process, at room temperature (32 °C–34 °C) for 24–48 h. The prepared samples were subjected to mechanical testing (tensile strength), fatigue analysis, void content evaluation, and microstructural examination to assess the effects of filler concentration. The specimen with 12.5% PBF exhibited the highest void content (7.75%), while the neat epoxy sample showed the lowest (3.24%). An increasing trend in tensile strength was observed with higher PBF content, peaking at 24.172 MPa for the 12.5% PBF composite. Fatigue resistance improved with filler content; notably, the composite with 10% PBF endured over 10 ^6 fatigue cycles. Microstructural analysis revealed noticeable agglomeration of PBF particles in samples with filler content above 10%. The results suggest that incorporating powdered bamboo filler into epoxy composites can significantly enhance mechanical and fatigue properties, particularly up to a 10% filler concentration. However, excessive filler loading (beyond 10%) may lead to particle agglomeration and increased void content, which could negatively impact performance. These findings provide valuable insights for optimizing natural filler content in sustainable composite material design. The noted enhancements in tensile strength and fatigue life indicate that these composites may be appropriate for lightweight structural applications, especially in non-load-bearing scenarios. |
| format | Article |
| id | doaj-art-477f4768799d40829728db0737d4d2b2 |
| institution | DOAJ |
| issn | 2053-1591 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Materials Research Express |
| spelling | doaj-art-477f4768799d40829728db0737d4d2b22025-08-20T02:50:05ZengIOP PublishingMaterials Research Express2053-15912025-01-0112707530510.1088/2053-1591/adef9eInfluence of powdered bamboo filler content on the tensile strength and fatigue life of epoxy compositesChaiki Malakar0https://orcid.org/0000-0002-9640-2631Hrishikesh Dutta1https://orcid.org/0000-0002-9226-4040Sumit Bhowmik2Ravivarman R3https://orcid.org/0000-0003-4199-6230Mridusmita Roy Choudhury4https://orcid.org/0000-0002-3565-0914Department of Mechanical Engineering, National Institute of Technology Agartala , IndiaCenter for Additive Manufacturing, Chennai Institute of Technology , Chennai, Tamil Nadu, IndiaDepartment of Mechanical Engineering, National Institute of Technology Silchar , IndiaDepartment of Mechanical Engineering, National Institute of Technology Agartala , IndiaDepartment of Mechanical and Industrial Engineering, Manipal Institute of Technology Bengaluru , Manipal Academy of Higher Education, Manipal, IndiaThe aim of this study is to evaluate the influence of reinforcing powdered bamboo filler (PBF) on the mechanical and fatigue properties of epoxy-based polymer composites, with a focus on balancing void content and tensile strength. Epoxy composites were fabricated by incorporating varying content of PBF (2.5%, 5%, 7.5%, 10%, and 12.5% by weight) using casting process, at room temperature (32 °C–34 °C) for 24–48 h. The prepared samples were subjected to mechanical testing (tensile strength), fatigue analysis, void content evaluation, and microstructural examination to assess the effects of filler concentration. The specimen with 12.5% PBF exhibited the highest void content (7.75%), while the neat epoxy sample showed the lowest (3.24%). An increasing trend in tensile strength was observed with higher PBF content, peaking at 24.172 MPa for the 12.5% PBF composite. Fatigue resistance improved with filler content; notably, the composite with 10% PBF endured over 10 ^6 fatigue cycles. Microstructural analysis revealed noticeable agglomeration of PBF particles in samples with filler content above 10%. The results suggest that incorporating powdered bamboo filler into epoxy composites can significantly enhance mechanical and fatigue properties, particularly up to a 10% filler concentration. However, excessive filler loading (beyond 10%) may lead to particle agglomeration and increased void content, which could negatively impact performance. These findings provide valuable insights for optimizing natural filler content in sustainable composite material design. The noted enhancements in tensile strength and fatigue life indicate that these composites may be appropriate for lightweight structural applications, especially in non-load-bearing scenarios.https://doi.org/10.1088/2053-1591/adef9epolymer compositepowdered bamboo fillertensile strengthfatigue lifeagglomerationepoxy matrix |
| spellingShingle | Chaiki Malakar Hrishikesh Dutta Sumit Bhowmik Ravivarman R Mridusmita Roy Choudhury Influence of powdered bamboo filler content on the tensile strength and fatigue life of epoxy composites Materials Research Express polymer composite powdered bamboo filler tensile strength fatigue life agglomeration epoxy matrix |
| title | Influence of powdered bamboo filler content on the tensile strength and fatigue life of epoxy composites |
| title_full | Influence of powdered bamboo filler content on the tensile strength and fatigue life of epoxy composites |
| title_fullStr | Influence of powdered bamboo filler content on the tensile strength and fatigue life of epoxy composites |
| title_full_unstemmed | Influence of powdered bamboo filler content on the tensile strength and fatigue life of epoxy composites |
| title_short | Influence of powdered bamboo filler content on the tensile strength and fatigue life of epoxy composites |
| title_sort | influence of powdered bamboo filler content on the tensile strength and fatigue life of epoxy composites |
| topic | polymer composite powdered bamboo filler tensile strength fatigue life agglomeration epoxy matrix |
| url | https://doi.org/10.1088/2053-1591/adef9e |
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