Effect of fibre treatment and moisture content on the vibration and acoustic properties of the basalt/hemp hybrid composites
The hybridization reinforcements of composites allow design engineers to enhance the structural and acoustic properties of synthetic fibre-reinforced materials. Natural fibres are considered to have higher potential for replacing synthetic fibres in the composite industry. The present study aims to...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2024-01-01
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| Series: | Materials Research Express |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/2053-1591/ad2f7f |
| _version_ | 1827320819553927168 |
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| author | Samanway Chakraborty N H Padmaraj Thara Reshma I V Sriharsha Hegde |
| author_facet | Samanway Chakraborty N H Padmaraj Thara Reshma I V Sriharsha Hegde |
| author_sort | Samanway Chakraborty |
| collection | DOAJ |
| description | The hybridization reinforcements of composites allow design engineers to enhance the structural and acoustic properties of synthetic fibre-reinforced materials. Natural fibres are considered to have higher potential for replacing synthetic fibres in the composite industry. The present study aims to develop hybrid composite materials for sound insulation applications in the automotive industry. The hybrid composites were developed by reinforcing Basalt and Hemp fibres with Epoxy using vacuum bagging technique and cured under ambient conditions. Vibration and acoustic experiments were carried out on pristine and aged BHU (Basalt-Hemp-Untreated) and BHT (Basalt-Hemp-Treated) specimens. The fibre treatment and moisture gain influenced the natural frequency and stiffness of the hybrid composites. With the fibre treatment, the natural frequency of the specimens was enhanced by 12.8%. With ageing of both BHU and BHT, specimens showed a reduction in the natural frequency by 16.4% and 23% respectively. Moisture ingression into the composites reduced the stiffness and improved the damping factor of the structure. The aged BHU and BHT showed better acoustic performance compared to the pristine specimens. |
| first_indexed | 2024-04-25T00:53:43Z |
| format | Article |
| id | doaj.art-484a4652804b420baafdf3343644dcbd |
| institution | Directory Open Access Journal |
| issn | 2053-1591 |
| language | English |
| last_indexed | 2024-04-25T00:53:43Z |
| publishDate | 2024-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Materials Research Express |
| spelling | doaj.art-484a4652804b420baafdf3343644dcbd2024-03-11T11:56:07ZengIOP PublishingMaterials Research Express2053-15912024-01-0111303510110.1088/2053-1591/ad2f7fEffect of fibre treatment and moisture content on the vibration and acoustic properties of the basalt/hemp hybrid compositesSamanway Chakraborty0N H Padmaraj1https://orcid.org/0000-0001-6626-2765Thara Reshma I V2Sriharsha Hegde3https://orcid.org/0000-0002-0634-5574Department of Aeronautical and Automobile Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education , Manipal, Karnataka, 576104, IndiaDepartment of Aeronautical and Automobile Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education , Manipal, Karnataka, 576104, IndiaDepartment of Aeronautical and Automobile Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education , Manipal, Karnataka, 576104, IndiaDepartment of Aeronautical and Automobile Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education , Manipal, Karnataka, 576104, IndiaThe hybridization reinforcements of composites allow design engineers to enhance the structural and acoustic properties of synthetic fibre-reinforced materials. Natural fibres are considered to have higher potential for replacing synthetic fibres in the composite industry. The present study aims to develop hybrid composite materials for sound insulation applications in the automotive industry. The hybrid composites were developed by reinforcing Basalt and Hemp fibres with Epoxy using vacuum bagging technique and cured under ambient conditions. Vibration and acoustic experiments were carried out on pristine and aged BHU (Basalt-Hemp-Untreated) and BHT (Basalt-Hemp-Treated) specimens. The fibre treatment and moisture gain influenced the natural frequency and stiffness of the hybrid composites. With the fibre treatment, the natural frequency of the specimens was enhanced by 12.8%. With ageing of both BHU and BHT, specimens showed a reduction in the natural frequency by 16.4% and 23% respectively. Moisture ingression into the composites reduced the stiffness and improved the damping factor of the structure. The aged BHU and BHT showed better acoustic performance compared to the pristine specimens.https://doi.org/10.1088/2053-1591/ad2f7fhempageingimpedance tubeacoustic propertydampinghybrid |
| spellingShingle | Samanway Chakraborty N H Padmaraj Thara Reshma I V Sriharsha Hegde Effect of fibre treatment and moisture content on the vibration and acoustic properties of the basalt/hemp hybrid composites Materials Research Express hemp ageing impedance tube acoustic property damping hybrid |
| title | Effect of fibre treatment and moisture content on the vibration and acoustic properties of the basalt/hemp hybrid composites |
| title_full | Effect of fibre treatment and moisture content on the vibration and acoustic properties of the basalt/hemp hybrid composites |
| title_fullStr | Effect of fibre treatment and moisture content on the vibration and acoustic properties of the basalt/hemp hybrid composites |
| title_full_unstemmed | Effect of fibre treatment and moisture content on the vibration and acoustic properties of the basalt/hemp hybrid composites |
| title_short | Effect of fibre treatment and moisture content on the vibration and acoustic properties of the basalt/hemp hybrid composites |
| title_sort | effect of fibre treatment and moisture content on the vibration and acoustic properties of the basalt hemp hybrid composites |
| topic | hemp ageing impedance tube acoustic property damping hybrid |
| url | https://doi.org/10.1088/2053-1591/ad2f7f |
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