Techno Press


Steel and Composite Structures   Volume 25, Number 2, October10 2017, pages 209-216
DOI: http://dx.doi.org/10.12989/scs.2017.25.2.209
 
Numerical analysis of the behaviour of repaired surface cracks with bonded composite patch
Mohamed Merzoug, Abdelkader Boulenouar and Mohamed Benguediab

 
Abstract     [Full Text]
    In this paper, the analysis of the behavior of surface cracks in finite-thickness plates repaired with a Boron/Epoxy composite patch is investigated using three-dimensional finite element methods. The stress intensity factor at the crack-front was used as the fracture criteria. Using the Ansys Parametric Design Language (APDL), the stress intensities at the internal and external positions of repaired surface crack were compared. The effects of the mechanical and geometrical properties of the adhesive layer and the composite patch on the variation of the stress intensity factor at the crack-front were examined.
 
Key Words
    patch; stress intensity factor; surface cracks; bonded composite repairs
 
Address
Mohamed Merzoug, Abdelkader Boulenouar and Mohamed Benguediab: Laboratory of Materials and Reactive Systems - LMSR. University of Sidi Bel Abbes. BP. 89, City Larbi Ben Mhidi. Sidi Bel Abbes, Algeria
 

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