Effect of the Reinforcement Phase on Indentation Resistance and Damage Characterization of Glass/Epoxy Laminates Using Acoustic Emission Monitoring
The effect of reinforcement phases on indentation resistance and damage behavior of glass/epoxy laminates was investigated in this research work. Woven glass fiber mat and nonwoven chopped glass fiber mat were used as fiber reinforcement phases for fabricating the laminates. Low-velocity impact and...
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| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2021/5768730 |
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| author | C. Suresh Kumar K. Saravanakumar P. Prathap M. Prince G. Bharathiraja S. Kannan S. Madhu P. Kumaran |
| author_facet | C. Suresh Kumar K. Saravanakumar P. Prathap M. Prince G. Bharathiraja S. Kannan S. Madhu P. Kumaran |
| author_sort | C. Suresh Kumar |
| collection | DOAJ |
| description | The effect of reinforcement phases on indentation resistance and damage behavior of glass/epoxy laminates was investigated in this research work. Woven glass fiber mat and nonwoven chopped glass fiber mat were used as fiber reinforcement phases for fabricating the laminates. Low-velocity impact and quasi-static indentation tests were performed on both laminates to investigate the contact behavior and energy-absorbing capability. Moreover, the acoustic emission (AE) technique was employed to monitor the indentation damage resistance. AE parameters including normalized cumulative counts (NCC), normalized cumulative energy (NCE), rise angle (RA), and felicity ratio (FR) were analyzed. The bidirectional laminates showed premature load drops and drastic changes in the normalized cumulative counts/energy profile in the beginning of loading cycles, indicating the development of macrodamage such as debonding/delamination. AE sentry function results of bidirectional laminates show longer PII function at the earlier stages, associated with minor PIII function and greater PIV function, indicating the continuous degradation and progression of damage. In contrast, the chopped laminates exhibited superior postimpact performance than the bidirectional laminates. The presence of randomly oriented fibres prevents the delamination crack propagation during compression loading, which was attributed with the increased residual compressive strength. |
| format | Article |
| id | doaj-art-d0af16b68e094921aeeb387c56f59b60 |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-d0af16b68e094921aeeb387c56f59b602025-02-03T07:23:58ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422021-01-01202110.1155/2021/57687305768730Effect of the Reinforcement Phase on Indentation Resistance and Damage Characterization of Glass/Epoxy Laminates Using Acoustic Emission MonitoringC. Suresh Kumar0K. Saravanakumar1P. Prathap2M. Prince3G. Bharathiraja4S. Kannan5S. Madhu6P. Kumaran7Department of Aeronautical Engineering, Bharath Institute of Higher Education and Research, Selaiyur, Chennai, IndiaDepartment of Aerospace Engineering, SRM Institute of Science & Technology, Kattankulathur, Chennai, Tamil Nadu, IndiaDepartment of Mechanical Engineering, Sri Krishna College of Technology, Coimbatore, Tamil Nadu, IndiaDepartment of Mechanical Engineering, Sri Krishna College of Technology, Coimbatore, Tamil Nadu, IndiaDepartment of Mechanical Engineering, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Chennai, Tamil Nadu, IndiaDepartment of Mechanical Engineering, Hindusthan College of Engineering and Technology, Coimbatore, Tamil Nadu, IndiaDepartment of Automobile Engineering, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Chennai, Tamil Nadu, IndiaDepartment of Mechanical Engineering, Wolaita Sodo University, Wolaita Sodo, EthiopiaThe effect of reinforcement phases on indentation resistance and damage behavior of glass/epoxy laminates was investigated in this research work. Woven glass fiber mat and nonwoven chopped glass fiber mat were used as fiber reinforcement phases for fabricating the laminates. Low-velocity impact and quasi-static indentation tests were performed on both laminates to investigate the contact behavior and energy-absorbing capability. Moreover, the acoustic emission (AE) technique was employed to monitor the indentation damage resistance. AE parameters including normalized cumulative counts (NCC), normalized cumulative energy (NCE), rise angle (RA), and felicity ratio (FR) were analyzed. The bidirectional laminates showed premature load drops and drastic changes in the normalized cumulative counts/energy profile in the beginning of loading cycles, indicating the development of macrodamage such as debonding/delamination. AE sentry function results of bidirectional laminates show longer PII function at the earlier stages, associated with minor PIII function and greater PIV function, indicating the continuous degradation and progression of damage. In contrast, the chopped laminates exhibited superior postimpact performance than the bidirectional laminates. The presence of randomly oriented fibres prevents the delamination crack propagation during compression loading, which was attributed with the increased residual compressive strength.http://dx.doi.org/10.1155/2021/5768730 |
| spellingShingle | C. Suresh Kumar K. Saravanakumar P. Prathap M. Prince G. Bharathiraja S. Kannan S. Madhu P. Kumaran Effect of the Reinforcement Phase on Indentation Resistance and Damage Characterization of Glass/Epoxy Laminates Using Acoustic Emission Monitoring Advances in Materials Science and Engineering |
| title | Effect of the Reinforcement Phase on Indentation Resistance and Damage Characterization of Glass/Epoxy Laminates Using Acoustic Emission Monitoring |
| title_full | Effect of the Reinforcement Phase on Indentation Resistance and Damage Characterization of Glass/Epoxy Laminates Using Acoustic Emission Monitoring |
| title_fullStr | Effect of the Reinforcement Phase on Indentation Resistance and Damage Characterization of Glass/Epoxy Laminates Using Acoustic Emission Monitoring |
| title_full_unstemmed | Effect of the Reinforcement Phase on Indentation Resistance and Damage Characterization of Glass/Epoxy Laminates Using Acoustic Emission Monitoring |
| title_short | Effect of the Reinforcement Phase on Indentation Resistance and Damage Characterization of Glass/Epoxy Laminates Using Acoustic Emission Monitoring |
| title_sort | effect of the reinforcement phase on indentation resistance and damage characterization of glass epoxy laminates using acoustic emission monitoring |
| url | http://dx.doi.org/10.1155/2021/5768730 |
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