Analysis of the Adhesive Damage for Different Patch Shapes in Bonded Composite Repair of Corroded Aluminum Plate Under Thermo-Mechanical Loading

Salem, Mehdi; Berrahou, Mohamed; Mechab, Boubaker; Bouiadjra, B. Bachir

doi:10.1007/s11668-021-01167-x

Cited by 8 publications

(5 citation statements)

References 12 publications

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“…Numerous numerical investigations were conducted to assess the efficacy of a boron/ epoxy repair (Salem et al, 2018(Salem et al, , 2021Serier et al, 2016;Ru zek et al, 2015;Makwana and Shaikh, 2019;Socha et al, 2021;Rabczuk et al, 2008). The endurance and trustworthiness of structures repaired with composite patches primarily hinge on the mechanical and thermal characteristics of the adhesive layer, constituting critical elements in the examination of failure causes and the deterioration of the entire repair process (Ufklyh et al, 2019;Yu et al, 2021;Zhuang and Talreja, 2014;Rabczuk et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

“…In adhesive joints experiencing mechanical or thermal forces, stress is transmitted from the less rigid bond to the more rigid one via the adhesive layer. This particular property has found practical application in the restoration of aeronautical structures by employing composite patches in the bonding process (Salem et al, 2021). This bonding method reduces stress concentration around the crack's leading edge, resulting in an overall improvement in the structural fatigue life.…”

Section: Introductionmentioning

confidence: 99%

“…Numerous numerical investigations were conducted to assess the efficacy of a boron/epoxy repair (Salem et al. , 2018, 2021; Serier et al. , 2016; Ružek et al.…”

Section: Introductionmentioning

confidence: 99%

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New investigation of delamination using the VCCT method to predict the damage in bonded composite repair plates subjected to tensile load

Talbi,

Salem,

Mechab

et al. 2024

IJSI

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PurposeThis study provides an analysis of patch repair for cracked aircraft structures. Delamination is a type of damage that affects the patch's behavior. The purpose of this study is to assess the influence of delamination on repair performance.Design/methodology/approachAn analytical and numerical study using the finite element method was conducted for a cracked plate repaired with a patch containing a pre-existing delamination defect. The method for defining the contact pair surfaces and modeling the delamination interaction within the patch interface is specified using the virtual crack closure technique (VCCT) approach.FindingsThe efficiency of the repair is measured in terms of the J-integral. The effects of delamination initiation, mechanical loading, crack length and patch stacking sequences are presented. It is noted that in mode I, delamination propagation is only significant at node A. The numerical results are in good agreement with those of the analytical solution found in the literature. It is observed that the patch's behavior is strongly dependent on loading, crack size and stacking sequences in terms of reducing the structure's lifespan, especially in the presence of delamination.Originality/valueThe numerical modeling presented by the VCCT approach is highly valuable for studying delamination evolution. The influence of loading, crack size and stacking sequences on repair performance is discussed in this work.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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New investigation of delamination using the VCCT method to predict the damage in bonded composite repair plates subjected to tensile load

Talbi,

Salem,

Mechab

et al. 2024

IJSI

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“…Mechab et al examined the deterioration of composite panels under convection in order to evaluate the effects of the mechanical properties of the composite on the orientation angle of the panel fibers and to prove the effect on the values of j integral 9 . The researcher Berrahou Mohamed has done several works regarding the study of the behavior of corroded aluminum plates under thermal stresses 10 , these Studies show that the higher the temperature, the more the composite material is affected negatively which in some cases may lead to significant damage.…”

Section: Introductionmentioning

confidence: 99%

Effect of the Fibers Orientation of the Different Types of Composite Plates Notched of U-Shape Repaired by Composite Patch

Berrahou

Amari²,

Leila

2023

Mat. Res.

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The main objective of this work is to repair a structure of composite materials by gluing composite patches with different fiber directions. The effects of stress distribution, damaged area ratio, stress intensity factor KIC and imposed stacking sequence were highlighted by a comprehensive study that contained two sides, an applied experimental side and a numerical model side. The composite materials plates studied in this work are 8-layer of graphite/epoxy, glass/epoxy and boron/epoxy, with different angles. The results obtained clearly show with respect to the experimental side that the orientation of the fibers affects the ultimate strength of failure and that the fibers oriented longitudinally in the direction of the tensile strength give us an ideal performance of the composite material. As for the model aspect of this study, the effects of stress intensity factor and the relationship between the damaged area and the fiber orientation on the performance of these patches were studied. We can conclude from this study that the orientation of the fibers has an important role in the performance of the composite material and its efficiency in repair.

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“…The bonded composite repair has been recognized as an efficient and economical method to extend the service life of cracked aircraft structures and the fatigue life of cracked aluminum components was the first otherwise the pioneer of these searches in the aeronautical and maritime research laboratory of the Royal Australian Air Force (Alan Baker, 1993). Several authors (Salem et al 2023;Salem et al 2021;Ibrahim et al 2018;Bisagni et al 2013 andSalem et al2018) analyzed crack growth of the cracked aluminum plates repaired with composite patch. The Jintegral fracture parameter has been extensively used in assessing fracture integrity of cracked engineering structures, which undergo large deformation.…”

Section: Introductionmentioning

confidence: 99%

Numerical and Analytical Prediction of the Propagation of Delamination of Bonded Composite Repair Plates Under Mechanical Loading

Talbi,

Salem,

Mechab

et al. 2023

JSSCM

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This study presents a numerical and analytical prediction of delamination of a repaired joint due to a defect in the composite under tensile loading. The three-dimensional finite element method is used to predict the delamination of a repaired plate with the VCCT method. The effects of the position of the delamination, percentage of the delaminated area, thickness and properties of the patch are presented. It can be noted that the propagation of delamination is significant only at node A and the analyzed model delaminated in mode I. The numerical results are in good agreement compared with the analytical solution found in the literature. It can be seen that the stiffness of the reinforcement material is strongly dependent on the mechanical properties of the patch interface. These results make it possible to choose the carbon/epoxy patch for the repair even if the graphite/epoxy has a high modulus of elasticity. The thickness and the mechanical properties parameter have a significant effect on increasing the durability of the structure.

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Analysis of the Adhesive Damage for Different Patch Shapes in Bonded Composite Repair of Corroded Aluminum Plate Under Thermo-Mechanical Loading

Cited by 8 publications

References 12 publications

New investigation of delamination using the VCCT method to predict the damage in bonded composite repair plates subjected to tensile load

New investigation of delamination using the VCCT method to predict the damage in bonded composite repair plates subjected to tensile load

Effect of the Fibers Orientation of the Different Types of Composite Plates Notched of U-Shape Repaired by Composite Patch

Numerical and Analytical Prediction of the Propagation of Delamination of Bonded Composite Repair Plates Under Mechanical Loading

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