Analysis of the presence of bonding defects on the fracture behavior of a damaged plate repaired by composite patch

The repair technique has presented its effectiveness in the reduction of the stresses at the level of stresses concentration areas. The search for a patch and suitable adhesive for a good transfer of load has pushed researchers to develop many ideas, which relate the form, the nature, the stacking s...

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Bibliographic Details
Published in:Frattura ed integritá strutturale 2019-07, Vol.13 (49), p.331-340
Main Authors: Kaddouri Nadia, Kouider Madani, Mohammed Amine Bellali, Xavier Feaugas
Format: Article
Language:English
Subjects:
Adhesive defect
J-Integral
Peel stress
Shear stress
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Summary:The repair technique has presented its effectiveness in the reduction of the stresses at the level of stresses concentration areas. The search for a patch and suitable adhesive for a good transfer of load has pushed researchers to develop many ideas, which relate the form, the nature, the stacking sequence of the patch and the adhesive type to give a better combination of choice between the patch and the adhesive. Our work fits in this context; the objective is to analyze by the method of finite elements the behavior in the rupture of a damaged plate in the presence of defect of bonding. The analysis of J-Integral and stresses in the tow substrates adhesive and patch shows clearly that their values depends strongly on the position of the default essentially when it s located close to the free edge of the free edge of the adhesive or the crack.
ISSN:1971-8993
1971-8993
DOI:10.3221/IGF-ESIS.49.33