Impedance based detection of delamination in composite structures
Nowadays commercial and military aircrafts are increasingly using composite materials to take advantage of their excellent specific strength and stiffness properties but impacts on composites due to bird-strike, hail-storm cause barely visible impact damage (BVID) that underscores the need for robus...
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| Format: | Proceeding Paper |
| Language: | English English |
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IOP Publishing
2017
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| Online Access: | http://irep.iium.edu.my/56893/ http://irep.iium.edu.my/56893/7/56893.pdf http://irep.iium.edu.my/56893/8/56893-Impedance%20Based%20Detection%20of%20Delamination%20in%20Composite%20Structures_SCOPUS.pdf |
| _version_ | 1848784827000553472 |
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| author | Djemana, Mohamed Hrairi, Meftah |
| author_facet | Djemana, Mohamed Hrairi, Meftah |
| author_sort | Djemana, Mohamed |
| building | IIUM Repository |
| collection | Online Access |
| description | Nowadays commercial and military aircrafts are increasingly using composite materials to take advantage of their excellent specific strength and stiffness properties but impacts on composites due to bird-strike, hail-storm cause barely visible impact damage (BVID) that underscores the need for robust structural health monitoring methods. Hence, damage identification in composite materials is a widely researched area that has to deal with problems coming from the anisotropic nature of composites and the fact that much of the damage occurs beneath the top surface of the laminate. This paper focuses on understanding self-sensing piezoelectric wafer active sensors (PWAS) to conduct electromechanical impedance (EMI) in glass fibre reinforced polymer composite to perform structural health monitoring. With the aid of a 3D ANSYS finite element model, an analysis of different techniques for the detection of position and size of a delamination in a composite structure using piezoelectric patches had been performed. The real part of the impedance is used because it is known to be more reactive to damage or changes in the structure’s integrity and less sensitive to ambient temperature changes compared to the imaginary part. Comparison with
experimental results is presented to validate the FE results. The experimental setup utilizes as its main apparatus an impedance analyser HP4194 that reads the in-situ EMI of PWAS bonded to the monitored composite structure. A good match between experimental and numerical results has been observed for low and high frequencies. The analysis in this paper provides necessary basis for delamination detection in composite structures using EMI technique. |
| first_indexed | 2025-11-14T16:43:26Z |
| format | Proceeding Paper |
| id | iium-56893 |
| institution | International Islamic University Malaysia |
| institution_category | Local University |
| language | English English |
| last_indexed | 2025-11-14T16:43:26Z |
| publishDate | 2017 |
| publisher | IOP Publishing |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | iium-568932017-05-19T04:26:32Z http://irep.iium.edu.my/56893/ Impedance based detection of delamination in composite structures Djemana, Mohamed Hrairi, Meftah TJ210.2 Mechanical devices and figures. Automata. Ingenious mechanism. Robots (General) Nowadays commercial and military aircrafts are increasingly using composite materials to take advantage of their excellent specific strength and stiffness properties but impacts on composites due to bird-strike, hail-storm cause barely visible impact damage (BVID) that underscores the need for robust structural health monitoring methods. Hence, damage identification in composite materials is a widely researched area that has to deal with problems coming from the anisotropic nature of composites and the fact that much of the damage occurs beneath the top surface of the laminate. This paper focuses on understanding self-sensing piezoelectric wafer active sensors (PWAS) to conduct electromechanical impedance (EMI) in glass fibre reinforced polymer composite to perform structural health monitoring. With the aid of a 3D ANSYS finite element model, an analysis of different techniques for the detection of position and size of a delamination in a composite structure using piezoelectric patches had been performed. The real part of the impedance is used because it is known to be more reactive to damage or changes in the structure’s integrity and less sensitive to ambient temperature changes compared to the imaginary part. Comparison with experimental results is presented to validate the FE results. The experimental setup utilizes as its main apparatus an impedance analyser HP4194 that reads the in-situ EMI of PWAS bonded to the monitored composite structure. A good match between experimental and numerical results has been observed for low and high frequencies. The analysis in this paper provides necessary basis for delamination detection in composite structures using EMI technique. IOP Publishing 2017-04-03 Proceeding Paper PeerReviewed application/pdf en http://irep.iium.edu.my/56893/7/56893.pdf application/pdf en http://irep.iium.edu.my/56893/8/56893-Impedance%20Based%20Detection%20of%20Delamination%20in%20Composite%20Structures_SCOPUS.pdf Djemana, Mohamed and Hrairi, Meftah (2017) Impedance based detection of delamination in composite structures. In: 3rd International Conference on Mechanical, Automotive and Aerospace Engineering 2016 (ICMAAE’16), 25th-27th July 2016, Kuala Lumpur, Malaysia. http://iopscience.iop.org/article/10.1088/1757-899X/184/1/012058/pdf 10.1088/1757-899X/184/1/012058 |
| spellingShingle | TJ210.2 Mechanical devices and figures. Automata. Ingenious mechanism. Robots (General) Djemana, Mohamed Hrairi, Meftah Impedance based detection of delamination in composite structures |
| title | Impedance based detection of delamination in composite structures |
| title_full | Impedance based detection of delamination in composite structures |
| title_fullStr | Impedance based detection of delamination in composite structures |
| title_full_unstemmed | Impedance based detection of delamination in composite structures |
| title_short | Impedance based detection of delamination in composite structures |
| title_sort | impedance based detection of delamination in composite structures |
| topic | TJ210.2 Mechanical devices and figures. Automata. Ingenious mechanism. Robots (General) |
| url | http://irep.iium.edu.my/56893/ http://irep.iium.edu.my/56893/ http://irep.iium.edu.my/56893/ http://irep.iium.edu.my/56893/7/56893.pdf http://irep.iium.edu.my/56893/8/56893-Impedance%20Based%20Detection%20of%20Delamination%20in%20Composite%20Structures_SCOPUS.pdf |