Fatigue behaviour of CFRP strengthened steel plates with different degrees of damage

被引：107
|
作者：
Yu, Q. Q. [1 ,2 ]
Chen, T. [1 ,2 ]
Gu, X. L. [1 ]
Zhao, X. L. [2 ]
Xiao, Z. G. [3 ]
机构：
[1] Tongji Univ, Dept Bldg Engn, Shanghai 200092, Peoples R China
[2] Monash Univ, Dept Civil Engn, Clayton, Vic 3800, Australia
[3] Monash Univ, Sch Appl Sci & Engn, Churchill, Vic 3842, Australia
来源：
THIN-WALLED STRUCTURES | 2013年 / 69卷
基金：
中国国家自然科学基金;
关键词：
Carbon fibre reinforced polymer plate; Fatigue damage; Fatigue test; Steel plate; Fracture mechanics; OVERHEAD SIGN STRUCTURES; BONDED COMPOSITE REPAIR; PATCH; CONNECTIONS; JOINTS; LIFE; FRP;
D O I：
10.1016/j.tws.2013.03.012
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
An experimental and analytical study was conducted to further investigate the effectiveness of the carbon fibre reinforced polymer (CFRP) plates in extending fatigue life of steel structures. Different lengths of artificial cracks were introduced to represent different degrees of fatigue damage. The experimental results demonstrated that the CFRP patches could effectively slow down the crack growth and prolong the fatigue life. A theoretical model was developed to predict the fatigue life of tested specimens. Thereafter, a parametric study was carried out to investigate the fatigue behaviour of steel plates with a wider range of damage degrees. This study extends the understanding of CFRP repair at different stages of crack propagation and provides some useful suggestions for the strengthening method. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：10 / 17
页数：8
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