| Citation: | WU Hanlin, YANG Jishen, YAO Gaicheng, et al. Strength analysis of composite bypass casing of aero-engine in adhesive bonded repair[J]. Journal of Aerospace Power, 2023, 38（3）：569-577 doi: 10.13224/j.cnki.jasp.20220380
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The application of composite materials is the main way to reduce aero-engine mass. Adhesive bonded repair was used to repair the damage of composite bypass casing of aero-engine, which was caused by different load cases and environmental conditions. A finite element model based on three-dimensional progressive damage method was constructed by Abaqus for the composite bypass casing of aero-engine of adhesive bonded repair, which simulated the propagation and evolution of composite material damage near holes and flanges, and predicted the static tensile and compression strength of resin-injection repair and scarf repair. Results showed that resin-injection was applied to repair the aerodynamic shape when the damage did not exceed 10% of the thickness while scarf repair was used to regain the static strength when the damage exceeded 10% of the thickness to penetration.
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