Optimization of structural damage repair with single and double-sided composite patches through the finite element analysis and Taguchi method

Aabid, Abdul and Ibrahim, Yasser and Hrairi, Meftah and Jaffar Syed, Mohamed Ali (2023) Optimization of structural damage repair with single and double-sided composite patches through the finite element analysis and Taguchi method. Materials, 16 (4). pp. 1-14. ISSN 1996-1944

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Abstract

Over the last four decades, numerous studies have been conducted on the use of bonded composite repairs for aircraft structures. These studies have explored the repair of damaged plates through experimental, numerical, and analytical methods and have found that bonded composite repairs are effective in controlling crack damage propagation in thin plates. The use of double-sided composite repairs has been found to improve repair performance within certain limits. This study focuses on these limits and optimizes double-sided composite repairs by varying adhesive bond and composite patch parameters. The optimization process begins with a finite element analysis to determine the stress intensity factor (SIF) for various variables and levels, followed by the application of the Taguchi method to find the optimal combination of parameters for maximizing the normalized SIF. In conclusion, we successfully determined the stress intensity factor (SIF) for various variations and normalized it for optimization. An optimization study was then performed using the Taguchi design and the results were analyzed. Our findings demonstrate the repair performance of bonded composite patches using a cost-effective and energy-efficient approach.

Item Type:	Article (Journal)
Uncontrolled Keywords:	composite patch; cracked plate; stress intensity factor; finite element method; Taguchi method
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) > TA401 Materials of engineering and construction T Technology > TL Motor vehicles. Aeronautics. Astronautics > TL500 Aeronautics
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering Kulliyyah of Engineering > Department of Mechanical Engineering
Depositing User:	Prof. Dr. Meftah Hrairi
Date Deposited:	27 Jun 2023 12:30
Last Modified:	27 Jun 2023 12:30
URI:	http://irep.iium.edu.my/id/eprint/105239

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