The composite patch bonding technique in the damaged area has demonstrated its effectiveness in reducing stresses at the stress concentration zones and has ensured a long service life of the repaired structure. The search for a suitable adhesive and patch for good load transfer has led researchers to develop, by mechanical tests, analytical or numerical methods, ideas about the shape, nature, stacking sequence type of adhesive for a better combination of patch and adhesive. Our work fits into this context; the aim is to provide a method to reduce the stresses on the plate by protecting the adhesive against the effect of aging, which significantly affects the mechanical properties of the adhesive and the composite patch. Several factors have been highlighted namely, the effect of the composite stacking sequence, modification of the thickness of the plate, the presence of bonding defects in different positions. The analysis of the J-Integral and the stresses in the adhesive and the patch shows clearly that their values depend strongly on these different parameters. However, the modification made to the plate has no effect on the stress concentration.

受损区域的复合贴片粘结技术已证明其在降低应力集中区域的应力方面的有效性，并确保了修复结构的长使用寿命。寻找合适的胶粘剂和贴剂以实现良好的载荷传递，已导致研究人员通过机械测试，分析或数值方法开发出有关胶粘剂的形状，性质，堆叠顺序类型的思想，以更好地组合贴剂和胶粘剂。我们的工作适合这种情况；目的是提供一种通过保护粘合剂不受时效影响来减少板上应力的方法，该方法会显着影响粘合剂和复合补片的机械性能。突出了几个因素，即复合堆叠顺序的影响，修改板的厚度，在不同位置存在粘结缺陷。对J积分以及粘合剂和贴剂中的应力的分析清楚地表明，它们的值在很大程度上取决于这些不同的参数。但是，对板进行的修改对应力集中没有影响。