Composite lay-up configuration effect on double and single sided bonded patch repairs

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Published Jun 19, 2022
DOI https://doi.org/10.3221/IGF-ESIS.61.22

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Toufik Achour
Mechanical Engineering Department, Faculty of technology Sciences, Mentouri Brothers University constantine1, Algeria Research Center in Industrial Technologies CRTI P.O. Box 64, Cheraga, 16014, Algeria.
Fayçal Mili
Laboratory of Mechanics, Faculty of technology Science, University of Mentouri Brothers constantine1, Algeria.

Abstract

Understanding the failure modes of damaged or cracked structures and repaired by bonding a composite patch is an essential point to improve its resistance to failure and subsequently extend its service life. In the present study, a 3D finite element analysis using ANSYS software was performed to elucidate the failure modes of the repaired structures by double and single sided bonded composite. The plate is represented by an aluminum plate (Al2024 T3), cracked at the edge and repaired by three types of laminates, with different fiber orientation in order to determine its effect on the repair. The contact interfaces patch-adhesive and aluminum-adhesive were modeled by cohesive zone modeling (CZM) using bilinear interface of delamination (BID) method to determine the failure at the adhesive layer. The obtained results show the importance of the impact of the composite patch fiber orientation on the structure design for suitable repair.  

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    Issue
    Vol. 16 No. 61 (2022): July 2022
    Section
    Reliability and Life Extension of Components

    How to Cite

    Achour, T. and Mili, F. (2022) “Composite lay-up configuration effect on double and single sided bonded patch repairs”, Frattura ed Integrità Strutturale, 16(61), pp. 327–337. doi: 10.3221/IGF-ESIS.61.22.
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