Modeling of a cracked and repaired Al 2024T3 aircraft plate: effect of the composite patch shape on the repair performance

In this work the finite element method was used to analyse the composite patch shape effect of the repair performance. Unlike all the works done conducted so far in this domain, this work proposed here, takes into account the reducing both, the stress intensity factor in repairing crack heads and th...

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Main Authors: Mohammed Baghdadi, Boualem Serier, Mokadem Salem, Bouchra Zaoui, Khacem Kaddouri
Format: Article
Language:English
Published: Gruppo Italiano Frattura 2019-07-01
Series:Fracture and Structural Integrity
Subjects:
Online Access:https://www.fracturae.com/index.php/fis/article/view/2403
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author Mohammed Baghdadi
Boualem Serier
Mokadem Salem
Bouchra Zaoui
Khacem Kaddouri
author_facet Mohammed Baghdadi
Boualem Serier
Mokadem Salem
Bouchra Zaoui
Khacem Kaddouri
author_sort Mohammed Baghdadi
collection DOAJ
description In this work the finite element method was used to analyse the composite patch shape effect of the repair performance. Unlike all the works done conducted so far in this domain, this work proposed here, takes into account the reducing both, the stress intensity factor in repairing crack heads and the maximum shear stresses in the adhesive layer. This is the originality of this work. In function of the surface and the volume of the rectangular patch, three cases were taken into consideration: with conservation of the patches surface and its volume, with a reduction of the patches surface and its volumes, and in the end, with a reduction of the patches surface and conservation of its volume. The obtained results show that in the first case, the patch shape have no effect on the SIF, the sharp edges (obtuse, right and acute) of oblique shapes generate high shear stresses, in the second case, the reduced surfaces lead to significant mass gain with the same SIF values. and to an increase in the maximum shear stresses, in the latter case the patches shapes lead to a reduction of the SIF and the shear stresses.
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institution Kabale University
issn 1971-8993
language English
publishDate 2019-07-01
publisher Gruppo Italiano Frattura
record_format Article
series Fracture and Structural Integrity
spelling doaj-art-da477d9932c040c9a405b5277f04ddf52025-01-03T00:40:22ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89932019-07-011350Modeling of a cracked and repaired Al 2024T3 aircraft plate: effect of the composite patch shape on the repair performanceMohammed Baghdadi0Boualem Serier1Mokadem Salem2Bouchra Zaoui3Khacem Kaddouri4University of Djillali Liabes, Laboratory of Mechanics Physics of Materials (LMPM Laboratory), Sidi Bel Abbes, Algeria.University of Djillali Liabes, Laboratory of Mechanics Physics of Materials (LMPM Laboratory), Sidi Bel Abbes, Algeria.University of Djillali Liabes, Laboratory of Mechanics Physics of Materials (LMPM Laboratory), Sidi Bel Abbes, Algeria.University of Djillali Liabes, Laboratory of Mechanics Physics of Materials (LMPM Laboratory), Sidi Bel Abbes, Algeria.University of Djillali Liabes, Laboratory of Mechanics Physics of Materials (LMPM Laboratory), Sidi Bel Abbes, Algeria.In this work the finite element method was used to analyse the composite patch shape effect of the repair performance. Unlike all the works done conducted so far in this domain, this work proposed here, takes into account the reducing both, the stress intensity factor in repairing crack heads and the maximum shear stresses in the adhesive layer. This is the originality of this work. In function of the surface and the volume of the rectangular patch, three cases were taken into consideration: with conservation of the patches surface and its volume, with a reduction of the patches surface and its volumes, and in the end, with a reduction of the patches surface and conservation of its volume. The obtained results show that in the first case, the patch shape have no effect on the SIF, the sharp edges (obtuse, right and acute) of oblique shapes generate high shear stresses, in the second case, the reduced surfaces lead to significant mass gain with the same SIF values. and to an increase in the maximum shear stresses, in the latter case the patches shapes lead to a reduction of the SIF and the shear stresses.https://www.fracturae.com/index.php/fis/article/view/2403PatchCompositeSIFStressShapeAdhesive
spellingShingle Mohammed Baghdadi
Boualem Serier
Mokadem Salem
Bouchra Zaoui
Khacem Kaddouri
Modeling of a cracked and repaired Al 2024T3 aircraft plate: effect of the composite patch shape on the repair performance
Fracture and Structural Integrity
Patch
Composite
SIF
Stress
Shape
Adhesive
title Modeling of a cracked and repaired Al 2024T3 aircraft plate: effect of the composite patch shape on the repair performance
title_full Modeling of a cracked and repaired Al 2024T3 aircraft plate: effect of the composite patch shape on the repair performance
title_fullStr Modeling of a cracked and repaired Al 2024T3 aircraft plate: effect of the composite patch shape on the repair performance
title_full_unstemmed Modeling of a cracked and repaired Al 2024T3 aircraft plate: effect of the composite patch shape on the repair performance
title_short Modeling of a cracked and repaired Al 2024T3 aircraft plate: effect of the composite patch shape on the repair performance
title_sort modeling of a cracked and repaired al 2024t3 aircraft plate effect of the composite patch shape on the repair performance
topic Patch
Composite
SIF
Stress
Shape
Adhesive
url https://www.fracturae.com/index.php/fis/article/view/2403
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AT boualemserier modelingofacrackedandrepairedal2024t3aircraftplateeffectofthecompositepatchshapeontherepairperformance
AT mokademsalem modelingofacrackedandrepairedal2024t3aircraftplateeffectofthecompositepatchshapeontherepairperformance
AT bouchrazaoui modelingofacrackedandrepairedal2024t3aircraftplateeffectofthecompositepatchshapeontherepairperformance
AT khacemkaddouri modelingofacrackedandrepairedal2024t3aircraftplateeffectofthecompositepatchshapeontherepairperformance