Steel and Composite Structures
Volume 49, Number 3, 2023, pages 271-280
DOI: 10.12989/scs.2023.49.3.271
Finite element analysis of corner cracked aluminum panels repaired with bonded composite patch
Abdelkader Boulenouar , Mohammed A. Bouchelarm , Noureddine Benseddiq
Abstract
In this study, the three-dimensional finite element method is used to analyze the behavior of corner cracks in finitethickness plates repaired with a composite patch. The normalized stress intensity factor at the crack front is used as fracture criterion. Comparison of stress intensity factor values at the internal and external positions of repaired quarter-elliptical corner crack was done, for three repair techniques. The influence of mechanical and geometrical properties of the adhesive layer and the composite patch on the variation of the stress intensity factor (SIF) at the crack-front was highlighted. The obtained results show that the application of double patch leads to a remarkable reduction of SIF at the crack front, compared to facial and lateral repairs.
Key Words
adhesive; bonded composite repair; corner crack; finite element method; stress intensity factor
Address
- Abdelkader Boulenouar, Mohammed A. Bouchelarm — Laboratoire de Materiaux et Systemes Reactifs - LMSR. Djillali Liabes University of Sidi Bel Abbes. 22000 Sidi Bel Abbes, Algeria
- Noureddine Benseddiq — 2Unite de Mecanique de Lille, EA 7512 UML, University of Lille, 59000 Lille, France
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