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Islam El-Sagheer Mai Taimour Mariam Mobtasem Amr Abd-Elhady Hossam El-Din M. Sallam

Abstract

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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    Section
    Fracture

    How to Cite

    El-Sagheer, I., Taimour, M., Mobtasem, M., Abd-Elhady , A., & Sallam, H. E.-D. M. (2020). Finite element analysis of the behavior of bonded composite patches repair in aircraft structures . Frattura Ed Integrità Strutturale, 14(54), 128–138. https://doi.org/10.3221/IGF-ESIS.54.09