An experimental study on damage intensity in composite plates subjected to low-velocity impacts
Today composite structures are widely used in different industries. Since these structures are sometimes experienced impacts of low-velocity objects, evaluating the intensity of the damage due to the impact in these structures seems important and necessary. In this article, the effectiveness of the...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2021-01-01
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| Series: | Polymer Testing |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0142941820321164 |
| _version_ | 1818737735113900032 |
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| author | Sajjad Seifoori R. Izadi G.H. Liaghat Ahmad Mahdian Parrany |
| author_facet | Sajjad Seifoori R. Izadi G.H. Liaghat Ahmad Mahdian Parrany |
| author_sort | Sajjad Seifoori |
| collection | DOAJ |
| description | Today composite structures are widely used in different industries. Since these structures are sometimes experienced impacts of low-velocity objects, evaluating the intensity of the damage due to the impact in these structures seems important and necessary. In this article, the effectiveness of the thermography method with three different thermal excitation sources, including the ultrasonic vibrothermography, infrared thermography with the heating element, and infrared thermography with hot airflow, for damage evaluation in CFRP and GFRP composite plates subjected to low-velocity impacts are investigated. The ultrasonic vibrothermography method is introduced as the most promising technique for damage evaluation in CFRP and GFRP composite plates subjected to low-velocity impacts, and the effect of the excitation power and excitation frequency on the effectiveness of this method is studied. To find the damage location in the thermography images in which the damage is not clear enough to be identified, the wavelet transform is applied while it is not suitable for calculating the damaged area. Finally, finite element (FE) simulations are carried out for the case of an internal defect. The results show the acceptable accuracy of the FE simulation in comparison with the experimental results. |
| first_indexed | 2024-12-18T00:57:46Z |
| format | Article |
| id | doaj.art-f15dff54353840f8ae8d0610b0d14288 |
| institution | Directory Open Access Journal |
| issn | 0142-9418 |
| language | English |
| last_indexed | 2024-12-18T00:57:46Z |
| publishDate | 2021-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Polymer Testing |
| spelling | doaj.art-f15dff54353840f8ae8d0610b0d142882022-12-21T21:26:28ZengElsevierPolymer Testing0142-94182021-01-0193106887An experimental study on damage intensity in composite plates subjected to low-velocity impactsSajjad Seifoori0R. Izadi1G.H. Liaghat2Ahmad Mahdian Parrany3Mechanical Engineering Department, Vali-e-Asr University of Rafsanjan, Rafsanjan, Iran; Corresponding author. Department of Mechanical Engineering, Faculty of Engineering, Vali-e-Asr University, P.O.BOX: 7713936417, Rafsanjan, Iran.Mechanical Engineering Department, Vali-e-Asr University of Rafsanjan, Rafsanjan, IranMechanical Engineering Department, Tarbiat Modares University, Tehran, IranMechanical Engineering Department, Vali-e-Asr University of Rafsanjan, Rafsanjan, IranToday composite structures are widely used in different industries. Since these structures are sometimes experienced impacts of low-velocity objects, evaluating the intensity of the damage due to the impact in these structures seems important and necessary. In this article, the effectiveness of the thermography method with three different thermal excitation sources, including the ultrasonic vibrothermography, infrared thermography with the heating element, and infrared thermography with hot airflow, for damage evaluation in CFRP and GFRP composite plates subjected to low-velocity impacts are investigated. The ultrasonic vibrothermography method is introduced as the most promising technique for damage evaluation in CFRP and GFRP composite plates subjected to low-velocity impacts, and the effect of the excitation power and excitation frequency on the effectiveness of this method is studied. To find the damage location in the thermography images in which the damage is not clear enough to be identified, the wavelet transform is applied while it is not suitable for calculating the damaged area. Finally, finite element (FE) simulations are carried out for the case of an internal defect. The results show the acceptable accuracy of the FE simulation in comparison with the experimental results.http://www.sciencedirect.com/science/article/pii/S0142941820321164Damage evaluationComposite laminatesLow-velocity impactActive thermography analysis |
| spellingShingle | Sajjad Seifoori R. Izadi G.H. Liaghat Ahmad Mahdian Parrany An experimental study on damage intensity in composite plates subjected to low-velocity impacts Polymer Testing Damage evaluation Composite laminates Low-velocity impact Active thermography analysis |
| title | An experimental study on damage intensity in composite plates subjected to low-velocity impacts |
| title_full | An experimental study on damage intensity in composite plates subjected to low-velocity impacts |
| title_fullStr | An experimental study on damage intensity in composite plates subjected to low-velocity impacts |
| title_full_unstemmed | An experimental study on damage intensity in composite plates subjected to low-velocity impacts |
| title_short | An experimental study on damage intensity in composite plates subjected to low-velocity impacts |
| title_sort | experimental study on damage intensity in composite plates subjected to low velocity impacts |
| topic | Damage evaluation Composite laminates Low-velocity impact Active thermography analysis |
| url | http://www.sciencedirect.com/science/article/pii/S0142941820321164 |
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