Analysis of Crack Propagation by Bonded Composite for Different Patch Shapes Repairs in Marine Structures: A Numerical Analysis

Kaddour, Sadek; Aour, Benaoumeur; Bouiadjra, B. Bachir; Bouanani, M. Fari; Khelil, Foudil

doi:10.4028/www.scientific.net/jera.35.175

Cited by 13 publications

(8 citation statements)

References 31 publications

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“…where According to the above analysis and the empirical model, the following functional relations of cracks in the near threshold zone can be constructed. [52][53][54]…”

Section: Model Establishmentmentioning

confidence: 99%

Fatigue life prediction of composite suspension considering residual stress and crack propagation

Wang

Liu

Huang

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part D:

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Composite materials are widely used in the automobile industry, compared with traditional mechanical connection, in terms of efficiency and manufacture cost structure, adhesively-bonded joints are usually the material most appropriate connection technology. Adhesively-bonded joints have good performance under fatigue load and the stress concentration is smaller. Lack of reliable design methods, long-term aging behavior, and fatigue life assessment of the adhesive joint, which are limits the bonded joints technology popularization and application. In order to describe the crack propagation process more accurately, an improved generalized crack propagation model was proposed to predict the fatigue life of composite bonded parts. The crack propagation process is divided into three stages, and the influence of machining technology, residual stress, and actual temperature in the process of machining are considered. The model provides an effective theoretical basis for accurately predicting the residual life of composite bonded structures. Experimental and simulation results show that the proposed model expands the prediction range of the existing theoretical model, and the prediction accuracy is significantly improved.

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“…where According to the above analysis and the empirical model, the following functional relations of cracks in the near threshold zone can be constructed. [52][53][54]…”

Section: Model Establishmentmentioning

confidence: 99%

Fatigue life prediction of composite suspension considering residual stress and crack propagation

Wang

Liu

Huang

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part D:

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“…Moreover, the influence of patch shape (circular, rectangular, trapezoid and elliptical) for carbon-epoxy and boron-epoxy patches and their mechanical properties on the SIF of the cracked plate was numerically studied (Kaddouri et al, 2008;Sadek et al, 2018;Hosseini-Toudeshky et al, 2013). Additionally, several researchers had previously evaluated the effects of fully bonded (El-Emam et al, 2016Khan and Essaheb, 2017;, 2020, partially bonded (Albedah et al, 2018a, b;Bellali et al, 2021) and welded patches (Abd-Elhady, 2013).…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Experimental and numerical analysis of the behavior of rehabilitated aluminum structures using chopped strand mat GFRP composite patches

Althahban,

Nowier,

El-Sagheer

et al. 2024

FEBE

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PurposeThis paper comprehensively addresses the influence of chopped strand mat glass fiber-reinforced polymer (GFRP) patch configurations such as geometry, dimensions, position and the number of layers of patches, whether a single or double patch is used and how well debonding the area under the patch improves the strength of the cracked aluminum plates with different crack lengths.Design/methodology/approachSingle-edge cracked aluminum specimens of 150 mm in length and 50 mm in width were tested using the tensile test. The cracked aluminum specimens were then repaired using GFRP patches with various configurations. A three-dimensional (3D) finite element method (FEM) was adopted to simulate the repaired cracked aluminum plates using composite patches to obtain the stress intensity factor (SIF). The numerical modeling and validation of ABAQUS software and the contour integral method for SIF calculations provide a valuable tool for further investigation and design optimization.FindingsThe width of the GFRP patches affected the efficiency of the rehabilitated cracked aluminum plate. Increasing patch width WP from 5 mm to 15 mm increases the peak load by 9.7 and 17.5%, respectively, if compared with the specimen without the patch. The efficiency of the GFRP patch in reducing the SIF increased as the number of layers increased, i.e. the maximum load was enhanced by 5%.Originality/valueThis study assessed repairing metallic structures using the chopped strand mat GFRP. Furthermore, it demonstrated the superiority of rectangular patches over semicircular ones, along with the benefit of using double patches for out-of-plane bending prevention and it emphasizes the detrimental effect of defects in the bonding area between the patch and the cracked component. This underlines the importance of proper surface preparation and bonding techniques for successful repair.Graphical abstract

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“…Huang and Feng [9] used the finite element method to study the effect of carbon fiber reinforced polymer (CFRP) repaired for edge crack under different failure modes. Sadek et al [10] compared between carbon-epoxy and boron-epoxy patches with four different shapes: circular, rectangular, trapezoid, and elliptical. Moreover, Ouinas et al [11] compared boron-epoxy and graphite-epoxy patches and also studied the effects of the adhesive properties and patch size on crack propagation.…”

Section: Introductionmentioning

confidence: 99%

Finite element analysis of the behavior of bonded composite patches repair in aircraft structures

El-Sagheer

Taimour

Mobtasem

et al. 2020

Frattura Ed Integrità Strutturale

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This paper aims to analyze the multi-effects of the glass fiber reinforced polymer (GFRP) composite patch to repair the inclined cracked 2420-T3 aluminum plate. Three-dimensional finite element method (FEM) was used to study the effect of GFRP composite patch with different stacking composite laminate sequence, [0°]4, [90o]4, [45o]4, [0o/45o]2s and [0°/90°]4s on the crack driving force, J-integral, of inclined cracked 2420-T3 aluminum plate. Furthermore, the effects of patch geometry, number of layers, single or double side patch and crack incline angle are described. The present results show that the patch has a high effect in case of a crack in pure mode I. Furthermore, the effectiveness of the composite patch is increasing with the crack length increases. Moreover, the efficiency of the composite patch has a high effect by changing the fiber orientation, the number of layers, and the single or double side patch.

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Analysis of Crack Propagation by Bonded Composite for Different Patch Shapes Repairs in Marine Structures: A Numerical Analysis

Cited by 13 publications

References 31 publications

Fatigue life prediction of composite suspension considering residual stress and crack propagation

Fatigue life prediction of composite suspension considering residual stress and crack propagation

Experimental and numerical analysis of the behavior of rehabilitated aluminum structures using chopped strand mat GFRP composite patches

Finite element analysis of the behavior of bonded composite patches repair in aircraft structures

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