In this study, the three-dimensional finite element method is used to analyze the effects of the thermal residual stresses due to the adhesive curing on the efficiency of bonded composite repair of cracked aluminum panels. The variation of the stress intensity factor at the crack tip is used for evaluating the repair performances. The effects of the geometrical and the mechanical properties of the composite patch and the adhesive on the repair efficiency were highlighted. The obtained results show that the thermal residual stresses significantly increase the stress intensity factor at the crack tip which reduces the repair efficiency.
BakerABittonDWangJ. Development of a proof test for through-life monitoring of bond integrity in adhesively bonded repairs to aircraft structure. Int J Adhes Adhes2012; 36: 65–76.
2.
SalemMBouiadjraBBMechabBet al.Elastic-plastic analysis of the J integral for repaired cracks in plates. Adv Mater Res2015; 4: 87–96.
3.
Hosseini-ToudeshkyHGhaffariMAMohammadiB. Finite element fatigue propagation of induced cracks by stiffeners in repaired panels with composite patches. Compos Struct2012; 94: 1771–1780.
4.
BouiadjraBBBenyahiaFAlbedahAet al.Comparison between composite and metallic patches for repairing aircraft structures of aluminum alloy 7075 T6. Int J Fatigue2015; 80: 128–135.
5.
BenyahiaFAminallahLAlbedahAet al.Experimental and numerical analysis of bonded composite patch repair in aluminum alloy 7075 T6. Mater Des2015; 73: 67–73.
6.
BouchibaMSESerierB. A step towards the optimization of composite bonded repair shape using an estimation distribution approach. J Brazil Soc Mech Sci Eng2016; 54: 1–17.
7.
WangCHRoseLRFCallinanRet al.Thermal stresses in plate with a circular reinforcement. Int J Solids Struct2000; 37: 4577–4599.
8.
SunCTKlugJCArendtC. Analysis of cracked aluminum plates repaired with bonded composite patches. AIAA J1996; 34: 369–374.
9.
BakerAAJonesR. Bonded repair of aircraft structure, Dordrecht, The Netherlands: Martinus Nijhoff Publishers, 1988.
10.
Hosseini-ToudeshkyHMohammadiB. Thermal residual stresses effects on fatigue crack growth of repaired panels bounded with various composite materials. Compos Struct2009; 89: 216–223.
11.
Albat AM. Thermal residual stresses in bonded composite repairs on cracked metal structures. PhD Thesis, University of British Columbia, Canada, 1998.
12.
AlbedahAMhamdiaRBenyahiaFet al.Analysis of thermal residual stresses distribution in circular and elliptical bonded composite repair of metallic cracked structures. Key Eng Mater2014; 577–578: 681–684.
13.
AminallahLAchourTBachir BouiadjraBet al.Analysis of the distribution of thermal residual stresses in bonded composite repair of metallic aircraft structures. Comput Mater Sci2009; 46: 1023–1027.
14.
AlbedahABachir BouiadjraBAminallahLet al.Numerical analysis of the effect of thermal residual stresses on the performances of bonded composite repairs in aircraft structures. Compos: Part B2011; 4: 511–516.
15.
MhamdiaRBachir BouadjraBSerierBet al.Stress intensity factor for repaired crack with bonded composite patch under thermo-mechanical loading. J Reinf Plastic Compos2011; 30: 416–424.
16.
DjokicDet al.Residual stress development during the composite patch bonding process: measurement and modeling. Compos Part A2002; 33: 277–288.
17.
Crooks HR. Reduction of thermal residual strains in adhesively bonded composite repairs. MSc Thesis, USAF: Air Force Institute of Technology, 2003.
18.
ChowWTAtluriSN. Composite patch repairs of metal structures: adhesive nonlinearity, thermal cycling, and debonding. AIAA J1997; 35: 1528–1535.
19.
RoseLRF. An application of the inclusion analogy for bonded reinforcements. Int J Solids Struct1981; 17: 827–838.
20.
SabelkinVMallSAvramJB. Fatigue crack growth analysis of stiffened cracked panel repaired with bonded composite patch. Eng Fract Mech2006; 73: 1553–1567.
21.
LeskiA. Implementation of the virtual crack closure technique in engineering FE calculations. Finite Element Anal Des2007; 43: 261–268.
22.
OuinasDBachir BouiadjraBHimouriSet al.Progressive edge cracked aluminium plate repaired with adhesively bonded composite patch under full width disbond. Compos Part B: Eng2012; 43: 805–811.
