Effect of carbon nanotube reinforcement on the natural frequencies and damping ratios of nanocomposite beams
In this study, the effect of carbon nanotube (CNT) reinforcement on the natural frequencies and damping ratios of nanocomposite beams are examined. Three nanocomposite plates reinforced with different CNT weight ratios (0% neat epoxy-glass fiber composite beam, 0.25%, 0.5%) are produced. Multi Walle...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2020-01-01
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| Series: | Materials Research Express |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/2053-1591/ab721a |
| _version_ | 1797746539230134272 |
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| author | Murat Hocaoğlu Hira Karagülle |
| author_facet | Murat Hocaoğlu Hira Karagülle |
| author_sort | Murat Hocaoğlu |
| collection | DOAJ |
| description | In this study, the effect of carbon nanotube (CNT) reinforcement on the natural frequencies and damping ratios of nanocomposite beams are examined. Three nanocomposite plates reinforced with different CNT weight ratios (0% neat epoxy-glass fiber composite beam, 0.25%, 0.5%) are produced. Multi Walled Carbon Nanotubes (Purity>96%, outside diameter < 8nm) are mixed into the epoxy resin with an ultrasonic stirrer. The plates also contain glass fibres as an additional reinforcement. Test specimens are cut parallel and perpendicular to the direction of the fibres to obtain two different sets of specimens. Free vibration tests are performed by a wireless accelerometer sensor (WAS), a wireless data acquisition system (WDA) and a PC. Natural frequencies and damping ratios are determined from the acceleration data obtained from the experiments. For both the 0° and 90° specimens an increase in natural frequency is observed. However, while the damping ratio of the 0° specimen increases, the damping ratio of 90° one decreases. |
| first_indexed | 2024-03-12T15:38:16Z |
| format | Article |
| id | doaj.art-7112c8c386964572824e46e4c4d6b316 |
| institution | Directory Open Access Journal |
| issn | 2053-1591 |
| language | English |
| last_indexed | 2024-03-12T15:38:16Z |
| publishDate | 2020-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Materials Research Express |
| spelling | doaj.art-7112c8c386964572824e46e4c4d6b3162023-08-09T16:06:31ZengIOP PublishingMaterials Research Express2053-15912020-01-017202502110.1088/2053-1591/ab721aEffect of carbon nanotube reinforcement on the natural frequencies and damping ratios of nanocomposite beamsMurat Hocaoğlu0https://orcid.org/0000-0002-1856-7924Hira Karagülle1Dokuz Eylül University, Department of Mechanical Engineering , İzmir, TurkeyDokuz Eylül University, Department of Mechanical Engineering , İzmir, TurkeyIn this study, the effect of carbon nanotube (CNT) reinforcement on the natural frequencies and damping ratios of nanocomposite beams are examined. Three nanocomposite plates reinforced with different CNT weight ratios (0% neat epoxy-glass fiber composite beam, 0.25%, 0.5%) are produced. Multi Walled Carbon Nanotubes (Purity>96%, outside diameter < 8nm) are mixed into the epoxy resin with an ultrasonic stirrer. The plates also contain glass fibres as an additional reinforcement. Test specimens are cut parallel and perpendicular to the direction of the fibres to obtain two different sets of specimens. Free vibration tests are performed by a wireless accelerometer sensor (WAS), a wireless data acquisition system (WDA) and a PC. Natural frequencies and damping ratios are determined from the acceleration data obtained from the experiments. For both the 0° and 90° specimens an increase in natural frequency is observed. However, while the damping ratio of the 0° specimen increases, the damping ratio of 90° one decreases.https://doi.org/10.1088/2053-1591/ab721ananocompositesvibrationcarbon nanotubes |
| spellingShingle | Murat Hocaoğlu Hira Karagülle Effect of carbon nanotube reinforcement on the natural frequencies and damping ratios of nanocomposite beams Materials Research Express nanocomposites vibration carbon nanotubes |
| title | Effect of carbon nanotube reinforcement on the natural frequencies and damping ratios of nanocomposite beams |
| title_full | Effect of carbon nanotube reinforcement on the natural frequencies and damping ratios of nanocomposite beams |
| title_fullStr | Effect of carbon nanotube reinforcement on the natural frequencies and damping ratios of nanocomposite beams |
| title_full_unstemmed | Effect of carbon nanotube reinforcement on the natural frequencies and damping ratios of nanocomposite beams |
| title_short | Effect of carbon nanotube reinforcement on the natural frequencies and damping ratios of nanocomposite beams |
| title_sort | effect of carbon nanotube reinforcement on the natural frequencies and damping ratios of nanocomposite beams |
| topic | nanocomposites vibration carbon nanotubes |
| url | https://doi.org/10.1088/2053-1591/ab721a |
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