Fatigue behaviour of AA 7075-T6 plates repaired at different crack lengths
Bonded Composite Repair Technology (BCRT) is widely used to reinforce weakened cracked components and damaged metallic structures in various aerospace applications. In this work, the fatigue crack behaviour of V- notched aluminium 7075-T6 plates, of 2 mm thickness, bonded with "single side"...
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| Format: | Article |
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Italian Association of Chemical Engineering - AIDIC
2017
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| _version_ | 1796862387191545856 |
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| author | Es Saheb, M. Khan, S. M. A. Mohsin, M. E. A. |
| author_facet | Es Saheb, M. Khan, S. M. A. Mohsin, M. E. A. |
| author_sort | Es Saheb, M. |
| collection | ePrints |
| description | Bonded Composite Repair Technology (BCRT) is widely used to reinforce weakened cracked components and damaged metallic structures in various aerospace applications. In this work, the fatigue crack behaviour of V- notched aluminium 7075-T6 plates, of 2 mm thickness, bonded with "single side" carbon composite patch configuration was experimentally investigated. The repair efficiency and fatigue life of cracked specimens repaired at different initial crack lengths of (a0 = 3 mm, 6 mm and 9 mm) and different stress ratios of (R = 0 and R = 0.1) were investigated. The results obtained showed that the bonded patch increases the fatigue life of all repaired samples ranging from 2.2 folds for 9 mm to 4.3 folds for 3 mm initial crack lengths. Repair can be treated at any level of crack initiation but preferably should be conducted as soon as it is detected. Stress ratio and initial crack lengths affect the repair efficiency. This is clearly manifested in the extended life and load carrying capacity of adhesively bonded specimen. |
| first_indexed | 2024-03-05T20:10:52Z |
| format | Article |
| id | utm.eprints-75693 |
| institution | Universiti Teknologi Malaysia - ePrints |
| last_indexed | 2024-03-05T20:10:52Z |
| publishDate | 2017 |
| publisher | Italian Association of Chemical Engineering - AIDIC |
| record_format | dspace |
| spelling | utm.eprints-756932018-04-27T01:45:59Z http://eprints.utm.my/75693/ Fatigue behaviour of AA 7075-T6 plates repaired at different crack lengths Es Saheb, M. Khan, S. M. A. Mohsin, M. E. A. TP Chemical technology Bonded Composite Repair Technology (BCRT) is widely used to reinforce weakened cracked components and damaged metallic structures in various aerospace applications. In this work, the fatigue crack behaviour of V- notched aluminium 7075-T6 plates, of 2 mm thickness, bonded with "single side" carbon composite patch configuration was experimentally investigated. The repair efficiency and fatigue life of cracked specimens repaired at different initial crack lengths of (a0 = 3 mm, 6 mm and 9 mm) and different stress ratios of (R = 0 and R = 0.1) were investigated. The results obtained showed that the bonded patch increases the fatigue life of all repaired samples ranging from 2.2 folds for 9 mm to 4.3 folds for 3 mm initial crack lengths. Repair can be treated at any level of crack initiation but preferably should be conducted as soon as it is detected. Stress ratio and initial crack lengths affect the repair efficiency. This is clearly manifested in the extended life and load carrying capacity of adhesively bonded specimen. Italian Association of Chemical Engineering - AIDIC 2017 Article PeerReviewed Es Saheb, M. and Khan, S. M. A. and Mohsin, M. E. A. (2017) Fatigue behaviour of AA 7075-T6 plates repaired at different crack lengths. Chemical Engineering Transactions, 56 . pp. 1627-1632. ISSN 2283-9216 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85019446941&doi=10.3303%2fCET1756272&partnerID=40&md5=81c0a065deb0bb5e58c9d9eca8d85f18 |
| spellingShingle | TP Chemical technology Es Saheb, M. Khan, S. M. A. Mohsin, M. E. A. Fatigue behaviour of AA 7075-T6 plates repaired at different crack lengths |
| title | Fatigue behaviour of AA 7075-T6 plates repaired at different crack lengths |
| title_full | Fatigue behaviour of AA 7075-T6 plates repaired at different crack lengths |
| title_fullStr | Fatigue behaviour of AA 7075-T6 plates repaired at different crack lengths |
| title_full_unstemmed | Fatigue behaviour of AA 7075-T6 plates repaired at different crack lengths |
| title_short | Fatigue behaviour of AA 7075-T6 plates repaired at different crack lengths |
| title_sort | fatigue behaviour of aa 7075 t6 plates repaired at different crack lengths |
| topic | TP Chemical technology |
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