Iranian Journal of Manufacturing Engineering

Iranian Journal of Manufacturing Engineering

Health monitoring of damage analysis of composite repair on cracked aluminum panels under fatigue loading

Document Type : Original Article

Authors
Hossein Hosseini Toudeshky 1
Pourya Sabzi 2
Maedeh Habibvand 2
1 Department of Aerospace Engineering, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran
2 Department of Aerospace Engineering, University of Tehran, Tehran, Iran
10.22034/ijme.2025.510900.2054
Abstract
All industrial structures and components should be designed within the scope of their operation during their operation. However, sometimes the existing environmental and destructive factors can have devastating effects on the life and health of the desired structure or component. Some of these effects can include germination and crack growth in the structure, if these disadvantages emerge after the event, they will bear heavy and sometimes irreparable costs. To this end, structural health monitoring systems are used to predict and prevent the occurrence of these disadvantages. In this research, the analysis of the failure and health of composite repair bonding on a 2024-T3 aluminum plate under the influence of fatigue load has been addressed. In this research, the wave propagation technique has been extracted from the behavior of a restored structural structure with a composite patch that is not damaged. Then possible damage between composite repair and aluminum structure is applied, and again using the wave propagation technique, the structural behavior of the fault is analyzed and compared with each other. Also, the characteristics of the Lamb wave are extracted from the finite element model of restored structure under the influence of fatigue load and compared with experimental results. The analysis of these results, the connection of composite repair and the effect of failure in lamb wave characteristics are investigated. To carry out this study, the standard aluminum billet samples were prepared after the contact surface preparation using patches made of glass/epoxy composites and unilaterally repaired and alternated, and then piezoelectric sensors were mounted on the samples and went under load.
Keywords
Damage
Repair
Structural Health Monitoring
Composite Patch
Fatigue Crack Growth
[1] Speckmann H, Henrich R. Structural health monitoring (SHM)–overview on technologies under development. InProceedings of the 16th World Conference on NDT 2004 Aug 30 (Vol. 1).
[2] Albedah A, Khan SM, Benyahia F, Bouiadjra BB. Experimental analysis of the fatigue life of repaired cracked plate in aluminum alloy 7075 with bonded composite patch. Engineering Fracture Mechanics. 2015 Aug 1;145:210-20. doi: 10.1007/978-94-009-2752-0
[3] Baker A, editor. Bonded repair of aircraft structures. Springer Science & Business Media; 1988 May 31.
[4] Bouiadjra BB, Benyahia F, Albedah A, Bouiadjra BA, Khan SM. Comparison between composite and metallic patches for repairing aircraft structures of aluminum alloy 7075 T6. International Journal of Fatigue. 2015 Nov 1;80:128-35. doi: 10.1016/j.ijfatigue.2015.05.018
[5] Jian-Bin H, Xu-Dong L, Zhi-Tao M. Fatigue behavior of thick center cracked aluminum plates repaired by two-sided composite patching. Materials & Design. 2015 Dec 25;88:331-5. doi: 10.1016/j.matdes.2015.09.011
[6] Aggelopoulos ES, Righiniotis TD, Chryssanthopoulos MK. Composite patch repair of steel plates with fatigue cracks growing in the thickness direction. Composite Structures. 2014 Feb 1;108:729-35. doi: 10.1016/j.compstruct.2005.02.023
[7] Constantin N, Sandu M, Sorohan Ş. Restoration of the mechanical performance of damaged Al panels using bonded composite repair patches. International Journal of Adhesion and Adhesives. 2013 Apr 1;42:69-76. doi: 10.1016/j.compstruct.2013.10.004
[8] Okafor AC, Singh N, Enemuoh UE, Rao SV. Design, analysis and performance of adhesively bonded composite patch repair of cracked aluminum aircraft panels. Composite structures. 2005 Nov 1;71(2):258-70. doi: 10.1016/j.ijadhadh.2013.01.003
[9] Hamzeloo SR, Akhoundi B, Fatehi M. Diagnosis and evaluation of factors affecting corrosion damage detection in health monitoring of cantilever beam by electromechanical impedance method. Iranian Journal of Manufacturing Engineering. 2020 Sep 22;7(7):59-70. [In Persian]
[10] Movafeghi A, Rokrok B, Rostami P, Nekouei J. Identification of cracks in gas pipes using digital radiography, wavelet and curvelet transforms. Iranian Journal of Manufacturing Engineering. 2020 Apr 20;7(2):26-32. [In Persian]
[11] Su Z, Ye L. Identification of damage using Lamb waves: from fundamentals to applications. Springer Science & Business Media; 2009 Sep 1.
[12] Giurgiutiu V. Structural health monitoring with piezoelectric wafer active sensors--predictive modeling and simulation. Incas Bulletin. 2010;2(3):31. doi: 10.13111/2066-8201.2010.2.3.4
[13] Wang T. Finite element modelling and simulation of guided wave propagation in steel structural members (Master's thesis, University of Western Sydney (Australia)). doi: 10.3390/su14116924
[14] Decker KH, Kabus K. Decker Maschinenelemente-Aufgaben. Carl Hanser Verlag GmbH Co KG; 2014 Oct 1.