The influence of various patch shapes with different composite materials on the behavior of the repaired aluminum (2024-T3) plate with a central circular notch was investigated. Finite element analysis FEA for different scenarios of the repaired plate has been performed to obtain normal stress σY and stress concentration factor SCF. Comparison of FEA results was done to investigate the effect of parameters such as the material and shape patch. Also, the comparison between the effects of using a single patch and a double patch on the repaired plate was done. In the analysis, the patch shapes considered with the same volume are rectangular, circular, trapezoidal, triangle, regular hexagonal, rotated regular hexagonal, elliptical, rotated elliptical. Based on the reduction of SCF and σY, the comparison of results revealed that the optimum composite patch shape applied on a central circular notch plate, repaired, depends on the repair method, i.e., using a single or double patch. The optimum patch shape is a rotated regular hexagonal shape when using a single patch, but a rectangular shape when using a double patch.
TseP-CLauK-JWongW-H. Stress and failure analysis of woven composite plates with adhesive patch-reinforced circular hole. Compos Part B Eng2002; 33: 57–65.
2.
BouchelarmMABoulenouarAChafiM. Numerical analysis of bonded composite patch efficiency in the case of lateral U and V-notched aluminium panels. Frattura ed Integrità Strutturale2022; 16: 62–72.
3.
YouZLZhangXMDuK. Finite element analysis of stiffness of steel plate with a rectangular cutout bonded by composite patches. Appl Mech Mater2013; 377: 3–7.
4.
ZhangXMChenLWYouZL, et al.Rehabilitation of strength of steel plate with a corroding hole bonded by composite patches. Appl Mech Mater2012; 226–228: 883–888.
5.
ErgünRKŞişmanAAdinH, et al.Repair of an aluminum plate with an elliptical hole using a composite patch. Mater Test2018; 60: 1104–1110.
6.
ConstantinNSanduMSorohanS. Restoration of the mechanical performance of damaged Al panels using bonded composite repair patches. Int J Adhes Adhes2013; 42: 69–76.
7.
AabidAHrairiMAliJSM, et al.Stress concentration analysis of a composite patch on a hole in an isotropic plate. Int J Mech Prod Eng Res Dev2018; 6: 249–255.
8.
DengJZhouGBordasSPA, et al.Numerical evaluation of buckling behaviour induced by compression on patch-repaired composites. Compos Struct2017; 168: 582–596.
AabidAHrairiMDawoodMS. Modeling different repair configurations of an aluminum plate with a hole. Int J Recent Technol Eng2019; 7: 235–240.
11.
CampilhoRDSGde MouraMFSFRamantaniDA, et al.Tensile behavior of three-dimensional carbon-epoxy adhesively bonded single- and double-strap repairs. Int J Adhes Adhes2009; 29: 678–686.
12.
WangYZhengYLiJ, et al.Experimental study on tensile behaviour of steel plates with centre hole strengthened by CFRP plates under marine environment. Int J Adhes Adhes2018; 84: 18–26.
13.
RezaeepazhandJSabouriH. Shear buckling of perforated metallic plates reinforced with square composite patches. J Reinf Plast Compos2010; 29: 1020–1027.
14.
RezaeepazhandJSaboriH. Buckling of perforated plates repaired with composite patches. Key Eng Mater2008; 385–387: 377–380.
CamineroMAPavlopoulouSLopez-PedrosaM, et al.Analysis of adhesively bonded repairs in composites: damage detection and prognosis. Compos Struct2013; 95: 500–517.
18.
CampilhoRDSGde MouraMFSFRamantaniDA, et al.Buckling strength of adhesively-bonded single and double-strap repairs on carbon-epoxy structures. Compos Sci Technol2010; 70: 371–379.
19.
YashiroSAkadaAOnoderaS. Variable stiffness composite patch for single-sided bonded repair of composite structures. Adv Compos Mater2024; 1–18. DOI: https://doi.org/10.1080/09243046.2024.2425878.
DamghaniMHarrisonCKennedyD. The effects of composite laminate stiffness and loading on stress resultant concentration factor around a hole. Proc Inst Mech Eng Part C J Mech Eng Sci2018; 232: 1033–1049.
22.
MadaniKTouzainSFeaugasX, et al.Stress distribution in a 2024-T3 aluminum plate with a circular notch, repaired by a graphite/epoxy composite patch. Int J Adhes Adhes2009; 29: 225–233.
23.
LiCZhaoQYuanJ, et al.Simulation and experiment on the effect of patch shape on adhesive repair of composite structures. J Compos Mater2019; 53: 4125–4135.
GuoSJ. Stress concentration and buckling behaviour of shear loaded composite panels with reinforced cutouts. Compos Struct2007; 80: 1–9.
26.
CoelhoSRMReisPNBFerreiraJAM, et al.Effects of external patch configuration on repaired composite laminates subjected to multi-impacts. Compos Struct2017; 168: 259–265.
27.
SetvatiMRMustaffaZ, et al.Meso-scale numerical study of composite patch repaired hole drilled steel plate. ARPN J Eng Appl Sci2016; 11: 1724–1728.
28.
DjebbarSCKaddouriNElAjramiM, et al.Use of combined CZM and XFEM techniques for the patch shape performance analysis on the behavior of a 2024-T3 aluminum structure reinforced with a composite patch. Frattura ed Integrità Strutturale2022; 16: 304–325.
29.
BhiseVSKashfuddojaMRamjiM. Optimization of circular composite patch reinforcement on damaged carbon fiber reinforced polymer laminate involving both mechanics-based and genetic algorithm in conjunction with 3D finite element analysis. J Compos Mater2014; 48: 2679–2695.
30.
ShokriehMMOmidiMJ. Reinforcement of metallic plates with composite materials. J Compos Mater2005; 39: 723–744.
31.
RamjiMSrilakshmiRPrakashMB. Towards optimization of patch shape on the performance of bonded composite repair using FEM. Compos Part B Eng2013; 45: 710–720.
32.
MouhatOBybiABouhmidiAE, et al.Effects of ply orientation on nonlinear buckling of aircraft composite stiffened panel. Frattura ed Integrità Strutturale2019; 13: 126–140.
33.
AhmedSZhengXZhangD, et al.Impact response of carbon/kevlar hybrid 3D woven composite under high velocity impact: experimental and numerical study. Appl Compos Mater2020; 27: 285–305.
34.
SolimanESMM. Investigation of modal and damage parameters of isotropic cantilever beam under double-sided crack. J Fail Anal Prev2020; 20: 120–136.
