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This paper concerns a numerical study by the finite element method of the cracked structure repaired by single and double bonded composite patches. The stress intensity factor is used as fracture criteria. The obtained results showed the advantage of the double patch compared to single on the reduction of the stress intensity factor at the crack tip. The effects of the properties of the plate and the patch and the adhesive on the beneficial effect of the double patch are highlighted. The adhesive properties must be optimised in order to increase the advantage of the double patch and to avoid the adhesive failure. The patch properties have a significant effect on the beneficial effects of the double symmetric patch. © 2006 Elsevier B.V. All rights reserved.




Bachir Bouiadjra, B., Fekirini, H., Serier, B., & Benguediab, M. (2007). Numerical analysis of the beneficial effect of the double symmetric patch repair compared to single one in aircraft structures. Computational Materials Science, 38(4), 824–829. https://doi.org/10.1016/j.commatsci.2006.05.020

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