stress intensity factor, center crack, composite patch, finite element


Crack propagation until fracture is an important criterion to predict a structure‘s service life. In order to increase the latter, the cracked component needs to be repaired or replaced. In the present study, a finite element analysis has been carried out to investigate the effects of adhesive thickness, patch thickness and crack length on the passive repair performance of a center-cracked rectangular aluminum plate under mode-I loading condition using an ANSYS package. A comprehensive parametric study shows that the stress intensity factor is influenced by the patch thickness, patch size, adhesive material, and adhesive thickness.

ABSTRAK: Penyebaran retak sehingga patah adalah kriteria penting bagi menjangka hayat struktur. Bagi memanjangkan jangka hayat struktur, komponen keretakan perlu dibaik pulih atau diganti. Kajian ini telah menjalankan analisis elemen tak terhingga bagi mengetahui kesan ketebalan pelekat, ketebalan tampalan dan panjang retak pada bahagian keretakan tengah plat petak aluminium yang dibaiki secara pasif, menggunakan pakej ANSYS di bawah beban mod-I. Kajian parametrik yang menyeluruh  menunjukkan faktor tekanan intensif dipengaruhi oleh ketebalan tampalan, saiz tampalan, bahan pelekat dan ketebalan pelekat.


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Madani, K, Touzain S, Feaugas X, Benguediab M, and Ratwani M. (2009) Stress Distribution in a 2024-T3 Aluminum Plate with a Circular Notch, Repaired by a Graphite/Epoxy Composite Patch. Int. J. Adhes. Adhes., 29: 225–33.

Ricci F, Franco F, Monrefusco N. (2011) Bonded Composite Patch Repairs on Cracked Aluminum Plates: Theory, Modeling and Experiments. In Advances in Composite Materials - Ecodesign and Analysis, 445-464.

Ergun E, Suleyman T, Muzaffer T. (2012) Stress Intensity Factor Estimation of Repaired Aluminum Plate with Bonded Composite Patch by Combined Genetic Algorithms and FEM under Temperature Effects. Indian J. Eng. Mater. Sci., 19 (1): 17-23.

Ouinas D, Belkacem A, Belabbes B. (2013) The Optimization Thickness of Single/Double Composite Patch on the Stress Intensity Factor Reduction. J. Reinf. Plast. Compos., 32 (9): 654-463.

Mhamdia R, Bachir Bouadjra B, Serier B, Ouddad W, Feaugas X, Touzain S. (2011) Stress Intensity Factor for Repaired Crack with Bonded Composite Patch under Thermo-Mechanical Loading. J. Reinf. Plast. Compos., 30 (5): 416-424.

Vishnuvardhan, Nadimpalli L, Himanshu P, Akhilendra S. (2016) Composite Patch Repair Modelling by FEM. Proceedings of First Structural Integrity Conference and Exhibition (SICE-2016): 4-6 July 2016.

Maleki H N, Chakherlou TN. (2017) Investigation of the Effect of Bonded Composite Patch on the Mixed-Mode Fracture Strength and Stress Intensity Factors for an Edge Crack in Aluminum Alloy 2024-T3 Plates. J. Reinf. Plast. Compos., 36 (15): 1074-1091.

Aabid A, Meftah H, Jaffar Syed Mohammed A, Ahmed A. (2018) Stress Concentration Analysis of a Composite Patch on a Hole in an Isotropic Plate. Int. J. Mech. Prod. Eng. Res. Dev., 6 (Special Issue): 249-255.

Aabid A, Meftah H, Jaffar Syed Mohammed A, Ahmed A. (2018) Numerical Analysis of Cracks Emanating From Hole in Plate Repaired by Composite Patch. Int. J. Mech. Prod. Eng. Res. Dev., 6 (Special Issue): 238-243.

Aabid A, Meftah H, Shaik Dawood MSI. (2019) Modeling Different Repair Configurations of an Aluminum Plate with a Hole. Int. J. Recent Technol. Eng., 7 (6S): 235-240.

Mahadesh Kumar A, Hakeem SA. (2000) Optimum Design of Symmetric Composite Patch Repair to Centre Cracked Metallic Sheet. Compos. Struct., 49 (3): 285-292.

ANSYS Inc. (2017) ANSYS FLUENT 18.0: Theory Guidance. Canonsburg PA.

Ouddad W, Bouadjra BB, Belhouari M, Ziadi A. (2015) Stress Intensity Factor for Repaired Crack with Bonded Composite Patch Repair under Mechanical Loading in Aircraft Structures. In 12th Congress in Mechanical, 416-424. Casablanca (Maroc).

Tada H, Paris PC, Irwin GR. (2000) The Stress Analysis of Cracks Handbook, Third Edition.

Albedah A, Bachir Bouiadjra B, Mhamdia R, Benyahia F, Es-saheb M. (2011) Comparison between Double and Single Sided Bonded Composite Repair with Circular Shape. Mater. Des., 32 (2): 996-1000.

Mhamdia R, Serier B, Albedah A, Bachir Bouiadjra B, Kaddouri K. (2017) Numerical Analysis of the Influences of Thermal Stresses on the Efficiency of Bonded Composite Repair of Cracked Metallic Panels. J. Compos. Mater., 51 (26): 3701-3709.




How to Cite

AAbid, A., Hrairi, M., Ali, J. S. M., & Abuzaid, A. (2019). EFFECT OF BONDED COMPOSITE PATCH ON THE STRESS INTENSITY FACTORS FOR A CENTER-CRACKED PLATE. IIUM Engineering Journal, 20(2), 211 - 221. https://doi.org/10.31436/iiumej.v20i2.912



Mechanical and Aerospace Engineering