Elliptical and circular bonded composite repair under mechanical and thermal loading in aircraft structures

Benyahia, F.; Albedah, A.; Bouiadjra, B. Bachir

doi:10.1590/1516-1439.259613

Cited by 16 publications

(6 citation statements)

References 26 publications

(29 reference statements)

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“…By comparing the circular and elliptical composite patches in Benyahia et al., 40 it was found that the semicircular patch performs better in both decreasing the SIF and the adhesive stress reduction. In Cheng et al., 41 the design and optimization of the patch-repaired composite laminates were performed by minimizing the R parameter (strength ratio defined by the Hoffman criteria) using FEM analysis.…”

Section: The Effect Of the Patch Adhesive And Main Plate Geometry Onmentioning

confidence: 99%

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A review on composite patch repairs and the most important parameters affecting its efficiency and durability

Mohammadi

Yousefi

Khazaei

2020

Journal of Reinforced Plastics and Composites

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In many industries, when replacement of a part is not possible or economic, the repair is done. One of the best methods for repairing metal and composite parts is using composite patches. Repairing with a composite patch is a widespread field to extend the service life of the cracked components. This technique is more structurally efficient with fewer damages on the structure than others. The bonded patch offers many advantages over a mechanically fastened doubler, which include improved fatigue behavior, reduced corrosion, and easy conformance to complex aerodynamic contours. In this article, advantages of the composite patch and its efficiency and durability are discussed, and the most important parameters (patch and adhesive thickness, patch separation, residual stress, patch length and width, etc.) affecting its performance are studied based on the latest available references.

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Section: The Effect Of the Patch Adhesive And Main Plate Geometry Onmentioning

confidence: 99%

“…Thermal stress increases the SIF and decreases the fatigue life. 40,49,53 The patch shape is effective both on the SIF and on the residual stress. If the curing temperature and the adhesive properties are optimized and the adhesive height is reduced, the detrimental effect of the residual stresses can be minimized.…”

Section: Residual Stressmentioning

confidence: 99%

A review on composite patch repairs and the most important parameters affecting its efficiency and durability

Mohammadi

Yousefi

Khazaei

2020

Journal of Reinforced Plastics and Composites

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“…The finite element modal of space science experimental equipment in this paper belongs to the multi-freedom undamped free vibration system [7] , the free vibration equation of the undamped system is as follows…”

Section: Space Science Experimental Equipment Modal Analysis Theorymentioning

confidence: 99%

Finite Element Analysis of Space Science Experimental Equipment Based on HyperMesh and Nastran

Sinian

Wang

2018

MATEC Web Conf.

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In the design process of space science experimental equipment, in order to better grasp the dynamic characteristics of the structure, a large number of finite element analysis is needed. This paper comprehensively use HyperMesh and Nastran to establish a set of finite element analysis process for space science experimental equipment, combine the advantages of each software to perform finite element analysis comprehensively, which greatly improves the accuracy and efficiency of the finite element analysis, the problems of this kind of engineering analysis has certain reference value.

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“…A way to design a patch repair can be performing a study of its optimal shape, in order to obtain the maximum safety-cost ratio. 13,14 In this regard, Ouinas et al. 15 have analysed the performance of octagonal, circular, and elliptical shapes of patches, using the finite-element method.…”

Section: Introductionmentioning

confidence: 99%

Numerical analysis of surface cracks repaired with single and double patches of composites

Iváñez

Braun

2017

Journal of Composite Materials

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In this work, the performances of circular single- and double-sided composite patch repairs are compared by computing the maximum stress intensity factor of a repaired surface crack. The three-dimensional finite-element method is used to calculate the stress intensity factor along the crack. The effects of the crack depth, composite patch thickness and patch material on the stress intensity factor variation are highlighted. The obtained results show that the selection of single- or double-sided patches depends on both the crack depth and patch thickness.

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Elliptical and circular bonded composite repair under mechanical and thermal loading in aircraft structures

Cited by 16 publications

References 26 publications

A review on composite patch repairs and the most important parameters affecting its efficiency and durability

A review on composite patch repairs and the most important parameters affecting its efficiency and durability

Finite Element Analysis of Space Science Experimental Equipment Based on HyperMesh and Nastran

Numerical analysis of surface cracks repaired with single and double patches of composites

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