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S. Dilip Sankar,
M. Sundararaj,
- Research Scholar, Department of Aeronautical & Aerospace Engineering, Bharath Institute of Higher Education and Research, Chennai, Tamil Nadu, India
- Professor, Department of Aeronautical & Aerospace Engineering, Bharath Institute of Higher Education and Research, Chennai, Tamil Nadu, India
Abstract
Adhesive patch repair technique has been identified as an effective and economical approach to repair damaged polymer composite structures that are used in aerospace, automotive, marine, wind energy, and many other high-performance engineering applications. Adhesive bonding offers superior stress distribution, reduced stress concentration, less structural weight and fatigue resistance, and thus increases the lifetime of the repair of composite structures when compared to the traditional mechanical attachment approaches. Performance and durability of the repaired laminate depend on the reinforcement arrangement of the repair patch and post-cure temperature at the time of bonding. This review will critically evaluate the latest studies conducted in adhesive patch repair of polymer composites focusing on the effect of different reinforcement arrangements such as glass fiber, carbon fiber, Kevlar, stitched, and hybrid fibers, as well as the effect of post-cure temperature.
The complex relationship between reinforcement structure, adhesion characteristics, bonding at the interface, curing properties, residual stress evolution and failure modes is carefully examined in relation to their effect on tensile, compressive, flexural, impact and fatigue behavior of repaired composites. In addition, existing problems and gaps in current knowledge, along with the latest research trends and developments, are carefully evaluated with the aim to reveal potential approaches for optimization of repair process with regard to its efficiency, reliability and durability. In particular, optimization approaches that include optimization of reinforcement arrangement, choice of adhesives, curing processes and repair methods are carefully considered. The results obtained through this review can be used for a better understanding of the mutual effect of reinforcement configuration and post-curing process.
Keywords: Adhesively bonded patch repair; Polymer composites; Reinforcement configuration; Post-cure temperature; Hybrid fibre composites; Mechanical performance; Composite repair; Structural durability.
S. Dilip Sankar, M. Sundararaj. Adhesively Bonded Patch Repair in Polymer Composites: Effects of Reinforcement Configuration and Post-Cure Temperature. Journal of Polymer & Composites. 2026; 14(03):-.
S. Dilip Sankar, M. Sundararaj. Adhesively Bonded Patch Repair in Polymer Composites: Effects of Reinforcement Configuration and Post-Cure Temperature. Journal of Polymer & Composites. 2026; 14(03):-. Available from: https://journals.stmjournals.com/jopc/article=2026/view=249553
References
[1] Ghafafian C, Seidlitz H. A multi-industry perspective on composite repairs. Appl Compos Mater. 2025.
[2] Fernandes PHE, Baumert M, Dieckhoff S, Nagel C, Beber VC. Adhesively bonded composite patch repair in load-bearing applications for the aviation industry: Manufacturing, design and simulation. Fatigue Fract Eng Mater Struct. 2025;48:1447-1460. doi:10.1111/ffe.14552.
[3] Adeleke OA, et al. Injection repair for advanced aerospace composite materials. J Reinf Plast Compos. 2025.
[4] Calabrese AS, et al. Repair and strengthening of existing structures using FRP systems: A review of toughened epoxy adhesives. Mater Today Proc. 2024.
[5] Borrie D, et al. Bonded CFRP/steel systems: Remedies of existing structures using fibre-reinforced polymers. Polymers. 2021;13(9):1533.
[6] Sonat EE. Mechanical Properties of Repaired Carbon Fiber Reinforced Polymer Composites [master’s thesis]. Middle East Technical University; 2021.
[7] Fernandes PHE, Baumert M, Nagel C, Beber VC. Fatigue behaviour of adhesively bonded CFRP composite patch repairs under cyclic loading. Fatigue Fract Eng Mater Struct. 2025.
[8] Ghafafian C, Seidlitz H. Composite repair strategies across marine, wind, automotive and aerospace industries: Current practices and future opportunities. Appl Compos Mater. 2025.
[9] Oshima S, Iwahori Y. Review on damage and failure in adhesively bonded composite joints for aerospace applications. Polymers. 2025;17(3):377. doi:10.3390/polym17030377.
[10] Dachev D, et al. Towards reliable adhesive bonding: Fundamentals, durability and future developments. Materials. 2025.
[11] Yashiro S, Takahashi K, et al. Variable stiffness composite patch for single-sided bonded repairs. J Adhes. 2025. doi:10.1080/09243046.2024.2425878.
[12] Budhe S, Banea MD, de Barros S, da Silva LFM. Bonded repair of composite structures in aerospace applications: A review on environmental issues. J Adhes. 2018;94(10):787-827.
[13] Advances in adhesive bonded joints for composite materials: A review. J Mines Met Fuels. 2024.
[14] Saravanan N, Jayaprakash P, Chithambaram V, Vadivel S. Growth and characterization of semi-organic crystal: thiourea ammonium carbonate for nonlinear optical applications. Phase Transitions. 2026:1-10. doi:10.1080/01411594.2026.2686162.
[15] S R, Kunhikrishnan L, N S, V C. Optical and thermal characterization of TSCPB single crystal: A potential candidate for next-generation optoelectronics. Mol Cryst Liq Cryst. 2026;770(8):1255-1264. doi:10.1080/15421406.2026.2657936.
[16] Rajesh L, Mohamed Rabik Mohamed Ismail, Sangeetha T, Sudhakar J, Lokeshbabu A, Maruthi Prema D, Chithambaram V. Futuristics of renewable and non-renewable resources in electricity demand for carbon-free transportation with electric vehicles. J Polym Compos. 2026.
[17] Chandra Vadhana A, Shivani M, Vasanthi S, Nageshwari M, Rathika Thaya Kumari C, Ravisankar V, Chithambaram V. Growth, structural and optical characteristics of citric acid doped copper sulphate single crystals for polymer composites photonic applications. J Polym Compos. 2026.
Journal of Polymer & Composites
| Volume | 14 |
| 03 | |
| Received | 23/06/2026 |
| Accepted | 08/07/2026 |
| Published | 13/07/2026 |
| Publication Time | 20 Days |
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