›› 2013, Vol. 31 ›› Issue (3): 50-53.

• Civil Aviation • Previous Articles     Next Articles

Tensile performance of bonded scarf repair of composite panel

JI Zhao-hui,LIU Kuo,LI Na,YU Ge   

  1. (Tianjin Key Lab of Civil Aircraft Airworthiness and Maintenance,CAUC,Tianjin 300300,China)
  • Received:2012-07-09 Revised:2012-09-03 Online:2013-06-23 Published:2013-10-08

Abstract:

Scarf repair of composite material has been proved to be an advanced repairing technology,which consists of beveled joint and ladder joint. The effect of different repairing structure on mechanical properties of beveled joint scarf repair is researched. The tensile properties of repaired composite laminating with slope ratios of 1:10,1:20,1:30 and 1:40 are studied respectively;meanwhile,the location of its fracture is summarized. The results show that the tensile strength of the scarf repaired specimen with the slope ratio of 1:30 is the best. Plus patch can improve the tensile strength of the specimen,and the appropriate number of the plus patch is 2. The fracture types mainly include degumming fracture and complement-chip fracture.

Key words: composite materials, damage repair, scarf repair, slope ratios

CLC Number: