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Article Dans Une Revue Structural Engineering and Mechanics Année : 2016

Effect of stacking sequence of the bonded composite patch on repair performance

Résumé

In this study, the three-dimensional finite element method is used to determine the stress intensity factor in Mode I and Mixed mode of a centered crack in an aluminum specimen repaired by a composite patch using contour integral. Various mesh densities were used to achieve convergence of the results. The effect of adhesive joint thickness, patch thickness, patch-specimen interface and layer sequence on the SIF was highlighted. The results obtained show that the patch-specimen contact surface is the best indicator of the deceleration of crack propagation, and hence of SIF reduction. Thus, the reduction in rigidity of the patch especially at adhesive layer-patch interface, allows the lowering of shear and normal stresses in the adhesive joint. The choice of the orientation of the adhesive layer-patch contact is important in the evolution of the shear and peel stresses. The patch will be more beneficial and effective while using the cross-layer on the contact surface.
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Dates et versions

hal-01282730 , version 1 (04-03-2016)

Identifiants

Citer

Hadja Imane Beloufa, Djamel Ouinas, Mostapha Tarfaoui, Noureddine Benderdouche. Effect of stacking sequence of the bonded composite patch on repair performance. Structural Engineering and Mechanics, 2016, 57 (2), pp.295-313. ⟨10.12989/sem.2016.57.2.295⟩. ⟨hal-01282730⟩
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