Analysis of cracked aluminum plates with one-sided patch repair using p-convergent layered model

Ahn, Jae S.; Basu, Prodyot K.; Woo, Kwang Sung

doi:10.1016/j.finel.2010.01.008

Cited by 24 publications

(6 citation statements)

References 23 publications

(32 reference statements)

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“…Nayak [1] emphasized the efficiency of composite materials for bonded repair, while Guruprasad [2] investigated the influence of composite patches on an aluminium crack plate and demonstrated the reduction in fracture parameter (SIF) through experimental and numerical investigations. Further studies have confirmed the effectiveness of composite patching on SIF reduction, including the use of a side-bonded patch through a p-convergent layered model [3] and the combination of genetic algorithms and the finite element (FE) method to measure SIF under temperature effects [4]. Moreover, nontraditional composite patch ply orientations have been examined for open-hole scarfed panels [5], and the fracture performance of cracked panels repaired with a bonded patch has been predicted for thick/thin metallic panels [6,7] and wood beams [8].…”

mentioning

confidence: 86%

Effect of fiber orientation-based composite lamina on mitigation of stress intensity factor for a repaired plate: a finite element study

Shaikh,

Baig,

Hrairi

et al. 2024

Frattura Ed Integrità Strutturale

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The bonded composite repair has proven to be an effective method for addressing crack damage propagation. Numerous studies have employed experimental and simulation techniques to demonstrate the repair performance through the composites. These studies have explored various parameters related to bonded composites, such as size and properties, to enhance repair effectiveness. However, one aspect that has not been thoroughly investigated is the impact of fiber orientation within the composites. Therefore, the current work investigates the effect of the fiber direction of the composite patch bonded on a thin plate under plane stress conditions. Three types of fiber orientation of composite patch have been considered. In this investigation, the finite element method was used to determine the stress intensity factor using the ANSYS commercial code. The research findings showed that the fiber direction influenced the mitigation of stress intensity factor. This study is particularly important for designing the composite patch based on the fiber direction.

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mentioning

confidence: 86%

Effect of fiber orientation-based composite lamina on mitigation of stress intensity factor for a repaired plate: a finite element study

Shaikh,

Baig,

Hrairi

et al. 2024

Frattura Ed Integrità Strutturale

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“…These studies showed that center, edge, patched, and unpatched plate models produced SIF reduction [ 15 ]. In some cases, using a p-convergent layered modeled repair was performed on the damaged plate, which showed that the composite patch had an approximately 50% reduction in the SIF [ 16 ]. Bouiadjra et al [ 17 ] demonstrated the performance of a double-sided composite patch on a damaged plate.…”

Section: Introductionmentioning

confidence: 99%

Optimization of Reinforcing Patch Effects on Cracked Plates Using Analytical Modeling and Taguchi Design

Aabid

2023

Materials

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Over the past four decades, the use of composite materials for the repair of cracked structural plates with glued patches has been extensively studied. Attention has been focused on determining a mode-I crack opening displacement, which is important in tension load and in preventing the failure of a structure due to small damages. Therefore, the significance of conducting this work is to determine the mode-I crack displacement of the stress intensity factor (SIF) using analytical modeling and an optimization method. In this study, an analytical solution was obtained for an edge crack on a rectangular aluminum plate with single- and double-sided quasi-isotropic reinforcing patches, using linear elastic fracture mechanics and Rose’s analytical approach. Additionally, an optimization technique with the Taguchi design was used to define the optimal solution of the SIF from the suitable parameters and levels. As a result, a parametric study was conducted to assess the mitigation of the SIF using analytical modeling, and the same data were used to optimize the results via the Taguchi design. This study successfully determined and optimized the SIF, demonstrating an energy- and cost-efficient approach to address damage control in structures.

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“…For the elements, higher-order shape functions are derived by combination of one- and two-dimensional shape functions based on Lobatto shape functions, not using pure higher-order three-dimensional shape functions. Then, stress intensity factors of cracked plates with a patch repair [ 10 , 21 ] were obtained by the p -convergent layerwise elements. In this paper, the proposed elements are applied to the free vibration analysis of cracked plates with a patch repair.…”

Section: Introductionmentioning

confidence: 99%

Free Vibration Analysis of Patch Repaired Plates with a Through Crack byp-Convergent Layerwise Element

Ahn

Yang

Woo

2014

The Scientific World Journal

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The high-order layerwise element models have been used for damaged plates and shells in the presence of singularities such as crack, cutout, and delamination. In this study, the extension of a proposed finite element model has been tested for free vibration analysis of composite laminated systems. For the elements, three-dimensional displacement fields can be captured by layer-by-layer representation. For the elements, higher-order shape functions are derived by combination of one- and two-dimensional shape functions based on higher-order Lobatto shape functions, not using pure higher-order three-dimensional shape functions. The present model can relieve difficulty of aspect ratios in modeling very thin thickness of bonding layer. For verification of the model, natural frequencies and corresponding mode shapes are calculated and then compared with reference values for uncracked and cracked plates. Also, the vibration characteristics of one-sided patch repaired plates with a through internal crack are investigated with respect to variation of crack length, size and thickness of patch, and shear modulus of adhesive, respectively.

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Analysis of cracked aluminum plates with one-sided patch repair using p-convergent layered model

Cited by 24 publications

References 23 publications

Effect of fiber orientation-based composite lamina on mitigation of stress intensity factor for a repaired plate: a finite element study

Effect of fiber orientation-based composite lamina on mitigation of stress intensity factor for a repaired plate: a finite element study

Optimization of Reinforcing Patch Effects on Cracked Plates Using Analytical Modeling and Taguchi Design

Free Vibration Analysis of Patch Repaired Plates with a Through Crack byp-Convergent Layerwise Element

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