中国民航大学学报 ›› 2013, Vol. 31 ›› Issue (3): 50-53.

• 民用航空 • 上一篇    下一篇

挖补修理对复合材料层合板拉伸性能的影响

纪朝辉,刘阔,李娜,于鸽   

  1. (中国民航大学天津市民用航空器适航与维修重点实验室,天津300300)
  • 收稿日期:2012-07-09 修回日期:2012-09-03 出版日期:2013-06-23 发布日期:2013-10-08
  • 作者简介:纪朝辉(1963 —),男,吉林松原人,教授,硕士,研究方向为材料表面工程.
  • 基金资助:

    中央高校基本业务费专项基金项目(ZXH2010D023)

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

摘要:

挖补修理是一种先进的复合材料层合板损伤修理技术,分为斜接法和阶梯法两种类型。本文研究不同修补结构对斜接法挖补修理试验件力学性能的影响。对斜接法楔形砂磨斜坡比率为1:10、1:20、1:30 和1:40 的复合材料层合板修理试验件的拉伸性能进行了研究,同时总结了斜接法修理后试件的断裂位置特征。结果表明:斜接法斜坡比率为1:30 的挖补修理试件的抗拉强度最好,外加补片会提高试件的抗拉强度,外加补片层数2 层为宜。断裂类型主要有脱胶断裂和补片断裂。

关键词: 复合材料, 损伤修理, 挖补法, 斜坡比率

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

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