Finite element analysis of the behavior of bonded composite patches repair in aircraft structures

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Published September 23, 2020
DOI: https://doi.org/10.3221/IGF-ESIS.54.09

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Islam El-Sagheer Department of Mechanical Design, Faculty of Engineering, University of Helwan, Egypt Mai Taimour Department of Mechanical Design, Faculty of Engineering, University of Helwan, Egypt Mariam Mobtasem Department of Mechanical Design, Faculty of Engineering, University of Helwan, Egypt Amr Abd-Elhady Department of Mechanical Design, Faculty of Engineering, University of Helwan, Egypt Hossam El-Din M. Sallam Materials Engineering Department, University of Zagazig, Zagazig, Egypt

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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Issue
Vol 14 No 54 (2020): October 2020
Section
Fracture

How to Cite

Finite element analysis of the behavior of bonded composite patches repair in aircraft structures . (2020). Fracture and Structural Integrity, 14(54), 128-138. https://doi.org/10.3221/IGF-ESIS.54.09
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How to Cite

Finite element analysis of the behavior of bonded composite patches repair in aircraft structures . (2020). Fracture and Structural Integrity, 14(54), 128-138. https://doi.org/10.3221/IGF-ESIS.54.09

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