In view of the lamination damage of composite stiffened panel in a part of the aircraft,the effect of scarf repair was verified.By comparison of the tensile shear strength and peel strength at different temperatures to confirm the adhesive between J-200-2 and J-272.The results showed that J-272 film was more sensitive to temperature.In order to verify the repair effect of using J-200-2 adhesive,the damage of typical stiffened panel skin 1/2 and 1/4 layers were repaired.The results showed that the bearing capacity was increased by 20% and 14.3% respectively.Based on the software of ABAQUS,a finite element model was developed in the study simulating the axial compression strength and failure mode of repaired specimens.The failure load was increased 22% from 409kN to 501.1kN.The finite element analysis proved that the J-200-2 adhesive had satisfied repair effect.
Sun Yungang, He Wang, Xu Guangqun
. Test and selection of adhesive for reinforced structural repair of composite stiffened panel[J]. New Chemical Materials, 2020
, 48(9)
: 159
-163
.
DOI: 10.19817/j.cnki.issn 1006-3536.2020.09.035
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